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• vmware workstation - virtual network adapters missing from ipconfig, still show in networking (XP host)

  - by Adam

  Hi Folks - here's a new one for me, and my first time posting here: I installed VMWare workstation 7.1 on a new PC. VMWare properly installs the virtual network adapters under the Network Connections control panel, however for some reason they do not show up under ipconfig, which is very weird. They also don't appear anywhere in "route print". I don't have network connectivity to the VM. My guesses are perhaps some conflict with Symantec AntiVirus or Symantec Client Firewall. Tried the following things: enabling TCP/IP in the virtual network adapters (they often get installed with it disabled for some reason) Restoring defualts in the VMnetcfg gui tool (this causes an uninstall and reinstall of the virtual network adapters on the host) Re-installing vmware workstation Uninstalling checkpoint secureremote and then reinstalling vmware Just to be clear, this problem is totally on the host. In my searching for stuff about (non-vmware) adapters missing from ipconfig, I see some posts about resetting the TCP/IP stack using netsh. Looking into that next... Thanks!

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• Corrupted network from ipad

  - by lisa

  All wireless clients were kicked off the network (3 PCs & 1 iPad). Only a PC with a wired connection was still able to connect. This morning I discovered that the network had been renamed and a new password had been assigned. Via Linksys Updater I gave a new password. Strangely, in my Windows Control Panel/Network connections our old password now exists as an unsecured network, that I cannot delete! When I attempt to connect using this bastard network, I get an Apple Push error. Linksys WRT610N PCs all using Windows 7 (wired & wireless) iPad 2

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• Linux: how to verify my network configuration before doing a restart

  - by wael34218

  I am trying to build a network bridge for my VMs on a server. So I added a new file and changed another in the /etc/sysconfig/network-scripts directory. Then I did a network reboot with the following command:/etc/init.d/network restart After that the server was not up again. I contacted the hosting provider's support for help. I need a way to verify my new configuration before a network restart. I need to make sure that it will be up again, just like apache's /etc/init.d/httpd configtest

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• Taskbar Disappears Over Remote Desktop Connection When Outside Local Network

  - by CMikeB1

  I've got a machine on my home network running Windows Server 2012 (Based on Win8) and rather than attach a monitor I remote desktop in and it works fine on my local network. The problem is, when I try to access it from outside my local network the taskbar disappears completely. When I minimize an application rather than minimize to the taskbar it simply closes the window as small as it can as if the taskbar never existed (see photos at ). I've messed with the connection properties (show/hide desktop background, etc.) with no luck. I've used the following methods to remote in and they all are fine when on the local network and taskbar-less from outside: Remote Desktop Connection on Mac Remote Desktop Connection on Windows Jump Desktop on iOS using RDP To access the computer from outside my local network I'm using a Linksys router and mapping to the server IP, port 3389. See Photos: http://i.stack.imgur.com/FyUeQ.png http://i.stack.imgur.com/9MnVr.png

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• Network Table assistance

  - by mitchnufc

  I am designing a small network and have came up with the following table I am just wondering if this seems right, would appreciate some feedback, thanks. Network/Router First IP Last IP Subnet Host Broadcast Router 1 162.10.0.1 162.10.0.7 255.255.255.248 162.10.0.0 162.10.0.8 Network 1 162.10.1.1 162.10.2.253 255.255.254.0 162.10.1.0 162.10.2.254 Network 2 162.10.0.9 162.10.0.14 255.255.255.248 162.10.0.8 162.10.0.15 Router 2 162.10.0.17 162.10.0.18 255.255.255.252 162.10.0.16 162.10.0.19 Network 3 162.10.0.21 162.10.0.146 255.255.255.128 162.10.0.20 162.10.0.147 Router one is the IP assigned by the ISP

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• Cannot start tor with vidalia, failed to bind listening port because of tor-socks running

  - by ganjan

  I get these errors trying to run tor with vidalia Apr 19 21:55:15.371 [Notice] Tor v0.2.1.30. This is experimental software. Do not rely on it for strong anonymity. (Running on Linux i686) Apr 19 21:55:15.372 [Notice] Initialized libevent version 1.4.13-stable using method epoll. Good. Apr 19 21:55:15.373 [Notice] Opening Socks listener on 127.0.0.1:9050 Apr 19 21:55:15.373 [Warning] Could not bind to 127.0.0.1:9050: Address already in use. Is Tor already running? Apr 19 21:55:15.373 [Warning] Failed to parse/validate config: Failed to bind one of the listener ports. Apr 19 21:55:15.373 [Error] Reading config failed--see warnings above. I don't think tor is running. Here is a nmap scan of my localhost Starting Nmap 5.21 ( http://nmap.org ) at 2011-04-19 21:59 CEST Nmap scan report for localhost (127.0.0.1) Host is up (0.0000050s latency). Hostname localhost resolves to 2 IPs. Only scanned 127.0.0.1 rDNS record for 127.0.0.1: localhost.localdomain Not shown: 989 closed ports PORT STATE SERVICE 22/tcp open ssh 53/tcp open domain 80/tcp open http 139/tcp open netbios-ssn 445/tcp open microsoft-ds 631/tcp open ipp 3128/tcp open squid-http 3306/tcp open mysql 9000/tcp open cslistener 9050/tcp open tor-socks 10000/tcp open snet-sensor-mgmt I see tor-socks is running here, probably be the cause of the problem. How do I stop this from starting up? I want to use vidalia so I can monitor whats going on.

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• NetworkManager broken after upgrade to Kubuntu Saucy

  - by queueoverflow

  I had Kubuntu 13.04 on my ThinkPad X220, and I upgraded to 13.10 and I am not able to connect to a wired or wireless connection. The new network tray icon does not show any entries at all. In the menu of the tray icon, there is an error saying: Require NetworkManager 0.9.8, found . I then tried the following: nmcli con ** (process:3695): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: Rejected send message, 3 matched rules; type="method_call", sender=":1.64" (uid=1000 pid=3695 comm="nmcli con ") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination="org.freedesktop.NetworkManager" (uid=0 pid=1116 comm="NetworkManager ") Error: nmcli (0.9.8.0) and NetworkManager (unknown) versions don't match. Force execution using --nocheck, but the results are unpredictable. nmcli dev ** (process:3700): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: Rejected send message, 3 matched rules; type="method_call", sender=":1.65" (uid=1000 pid=3700 comm="nmcli dev ") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination="org.freedesktop.NetworkManager" (uid=0 pid=1116 comm="NetworkManager ") Error: nmcli (0.9.8.0) and NetworkManager (unknown) versions don't match. Force execution using --nocheck, but the results are unpredictable. nm-tool ** (process:3705): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: Rejected send message, 3 matched rules; type="method_call", sender=":1.66" (uid=1000 pid=3705 comm="nm-tool ") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination="org.freedesktop.NetworkManager" (uid=0 pid=1116 comm="NetworkManager ") NetworkManager Tool State: unknown ** (process:3705): WARNING **: error: could not connect to NetworkManager Running those as root works, however. I was also able to run nmcli con up id DHCP which got my DHCP connection working and giving me internet access. That did not work using a Wifi connection though, and I do need those. How can I get networking back to work without a reinstall?

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• Wireless internet is connected to an open network but has no internet

  - by Joshua Reeder

  I just installed Ubuntu on my laptop yesterday and it connected to the wireless fine. Then I took it to school, put it on their wired connection, downloaded some stuff, and now the wireless doesn't work. At first it would detect networks, but not connect. I restarted it and now it can connect, but it acts like it doesn't have internet in the browser. Wired connection still works fine on it. I know it isn't the network because my ipad is working on the wireless connection fine. I found another solution on here switching the security settings for the wireless, but this is the apartment's wireless so they have it open, and I won't be able to mess with it at all. Here is lspci output: 00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11) 00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1 (rev 11) 00:08.0 System peripheral: Intel Corporation Core Processor System Management Registers (rev 11) 00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and Scratchpad Registers (rev 11) 00:08.2 System peripheral: Intel Corporation Core Processor System Control and Status Registers (rev 11) 00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous Registers (rev 11) 00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11) 00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and Protocol Registers (rev 11) 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) 00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05) 00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05) 00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05) 00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 05) 00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05) 00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5) 00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05) 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05) 01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 310M] (rev a2) 01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05) 07:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10) 16:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 20) 16:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 20) 16:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 20) 16:00.4 System peripheral: JMicron Technology Corp. xD Host Controller (rev 20) ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-Core Registers (rev 04) ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 04) ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 04) ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 04) ff:03.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller (rev 04) ff:03.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Target Address Decoder (rev 04) ff:03.4 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04) ff:04.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Control Registers (rev 04) ff:04.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Address Registers (rev 04) ff:04.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Rank Registers (rev 04) ff:04.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04) ff:05.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Control Registers (rev 04) ff:05.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Address Registers (rev 04) ff:05.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Rank Registers (rev 04) ff:05.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04) Update: I re-installed Ubuntu 12.04 (I assumed I messed something up while toying with it) but it did not solve the problem. Eventually, I got it to work with my school's wireless internet (the default network settings were wrong), but the internet still doesn't work on my apartment's wifi (it has no security on it).

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• Nginx and client certificates from hierarchical OpenSSL-based certification authorities

  - by Fmy Oen

  I'm trying to set up root certification authority, subordinate certification authority and to generate the client certificates signed by any of this CA that nginx 0.7.67 on Debian Squeeze will accept. My problem is that root CA signed client certificate works fine while subordinate CA signed one results in "400 Bad Request. The SSL certificate error". Step 1: nginx virtual host configuration: server { server_name test.local; access_log /var/log/nginx/test.access.log; listen 443 default ssl; keepalive_timeout 70; ssl_protocols SSLv3 TLSv1; ssl_ciphers AES128-SHA:AES256-SHA:RC4-SHA:DES-CBC3-SHA:RC4-MD5; ssl_certificate /etc/nginx/ssl/server.crt; ssl_certificate_key /etc/nginx/ssl/server.key; ssl_client_certificate /etc/nginx/ssl/client.pem; ssl_verify_client on; ssl_session_cache shared:SSL:10m; ssl_session_timeout 5m; location / { proxy_pass http://testsite.local/; } } Step 2: PKI infrastructure organization for both root and subordinate CA (based on this article): # mkdir ~/pki && cd ~/pki # mkdir rootCA subCA # cp -v /etc/ssl/openssl.cnf rootCA/ # cd rootCA/ # mkdir certs private crl newcerts; touch serial; echo 01 > serial; touch index.txt; touch crlnumber; echo 01 > crlnumber # cp -Rvp * ../subCA/ Almost no changes was made to rootCA/openssl.cnf: [ CA_default ] dir = . # Where everything is kept ... certificate = $dir/certs/rootca.crt # The CA certificate ... private_key = $dir/private/rootca.key # The private key and to subCA/openssl.cnf: [ CA_default ] dir = . # Where everything is kept ... certificate = $dir/certs/subca.crt # The CA certificate ... private_key = $dir/private/subca.key # The private key Step 3: Self-signed root CA certificate generation: # openssl genrsa -out ./private/rootca.key -des3 2048 # openssl req -x509 -new -key ./private/rootca.key -out certs/rootca.crt -config openssl.cnf Enter pass phrase for ./private/rootca.key: You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]: State or Province Name (full name) [Some-State]: Locality Name (eg, city) []: Organization Name (eg, company) [Internet Widgits Pty Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []:rootca Email Address []: Step 4: Subordinate CA certificate generation: # cd ../subCA # openssl genrsa -out ./private/subca.key -des3 2048 # openssl req -new -key ./private/subca.key -out subca.csr -config openssl.cnf Enter pass phrase for ./private/subca.key: You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]: State or Province Name (full name) [Some-State]: Locality Name (eg, city) []: Organization Name (eg, company) [Internet Widgits Pty Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []:subca Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []: Step 5: Subordinate CA certificate signing by root CA certificate: # cd ../rootCA/ # openssl ca -in ../subCA/subca.csr -extensions v3_ca -config openssl.cnf Using configuration from openssl.cnf Enter pass phrase for ./private/rootca.key: Check that the request matches the signature Signature ok Certificate Details: Serial Number: 1 (0x1) Validity Not Before: Feb 4 10:49:43 2013 GMT Not After : Feb 4 10:49:43 2014 GMT Subject: countryName = AU stateOrProvinceName = Some-State organizationName = Internet Widgits Pty Ltd commonName = subca X509v3 extensions: X509v3 Subject Key Identifier: C9:E2:AC:31:53:81:86:3F:CD:F8:3D:47:10:FC:E5:8E:C2:DA:A9:20 X509v3 Authority Key Identifier: keyid:E9:50:E6:BF:57:03:EA:6E:8F:21:23:86:BB:44:3D:9F:8F:4A:8B:F2 DirName:/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca serial:9F:FB:56:66:8D:D3:8F:11 X509v3 Basic Constraints: CA:TRUE Certificate is to be certified until Feb 4 10:49:43 2014 GMT (365 days) Sign the certificate? [y/n]:y 1 out of 1 certificate requests certified, commit? [y/n]y ... # cd ../subCA/ # cp -v ../rootCA/newcerts/01.pem certs/subca.crt Step 6: Server certificate generation and signing by root CA (for nginx virtual host): # cd ../rootCA # openssl genrsa -out ./private/server.key -des3 2048 # openssl req -new -key ./private/server.key -out server.csr -config openssl.cnf Enter pass phrase for ./private/server.key: You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]: State or Province Name (full name) [Some-State]: Locality Name (eg, city) []: Organization Name (eg, company) [Internet Widgits Pty Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []:test.local Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []: # openssl ca -in server.csr -out certs/server.crt -config openssl.cnf Step 7: Client #1 certificate generation and signing by root CA: # openssl genrsa -out ./private/client1.key -des3 2048 # openssl req -new -key ./private/client1.key -out client1.csr -config openssl.cnf Enter pass phrase for ./private/client1.key: You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]: State or Province Name (full name) [Some-State]: Locality Name (eg, city) []: Organization Name (eg, company) [Internet Widgits Pty Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []:Client #1 Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []: # openssl ca -in client1.csr -out certs/client1.crt -config openssl.cnf Step 8: Client #1 certificate converting to PKCS12 format: # openssl pkcs12 -export -out certs/client1.p12 -inkey private/client1.key -in certs/client1.crt -certfile certs/rootca.crt Step 9: Client #2 certificate generation and signing by subordinate CA: # cd ../subCA/ # openssl genrsa -out ./private/client2.key -des3 2048 # openssl req -new -key ./private/client2.key -out client2.csr -config openssl.cnf Enter pass phrase for ./private/client2.key: You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [AU]: State or Province Name (full name) [Some-State]: Locality Name (eg, city) []: Organization Name (eg, company) [Internet Widgits Pty Ltd]: Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []:Client #2 Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []: # openssl ca -in client2.csr -out certs/client2.crt -config openssl.cnf Step 10: Client #2 certificate converting to PKCS12 format: # openssl pkcs12 -export -out certs/client2.p12 -inkey private/client2.key -in certs/client2.crt -certfile certs/subca.crt Step 11: Passing server certificate and private key to nginx (performed with OS superuser privileges): # cd ../rootCA/ # cp -v certs/server.crt /etc/nginx/ssl/ # cp -v private/server.key /etc/nginx/ssl/ Step 12: Passing root and subordinate CA certificates to nginx (performed with OS superuser privileges): # cat certs/rootca.crt > /etc/nginx/ssl/client.pem # cat ../subCA/certs/subca.crt >> /etc/nginx/ssl/client.pem client.pem file look like this: # cat /etc/nginx/ssl/client.pem -----BEGIN CERTIFICATE----- MIID6TCCAtGgAwIBAgIJAJ/7VmaN048RMA0GCSqGSIb3DQEBBQUAMFYxCzAJBgNV BAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX aWRnaXRzIFB0eSBMdGQxDzANBgNVBAMTBnJvb3RjYTAeFw0xMzAyMDQxMDM1NTda ... -----END CERTIFICATE----- Certificate: Data: Version: 3 (0x2) Serial Number: 1 (0x1) ... -----BEGIN CERTIFICATE----- MIID4DCCAsigAwIBAgIBATANBgkqhkiG9w0BAQUFADBWMQswCQYDVQQGEwJBVTET MBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQ dHkgTHRkMQ8wDQYDVQQDEwZyb290Y2EwHhcNMTMwMjA0MTA0OTQzWhcNMTQwMjA0 ... -----END CERTIFICATE----- It looks like everything is working fine: # service nginx reload # Reloading nginx configuration: Enter PEM pass phrase: # nginx. # Step 13: Installing *.p12 certificates in browser (Firefox in my case) gives the problem I've mentioned above. Client #1 = 200 OK, Client #2 = 400 Bad request/The SSL certificate error. Any ideas what should I do? Update 1: Results of SSL connection test attempts: # openssl s_client -connect test.local:443 -CAfile ~/pki/rootCA/certs/rootca.crt -cert ~/pki/rootCA/certs/client1.crt -key ~/pki/rootCA/private/client1.key -showcerts Enter pass phrase for tmp/testcert/client1.key: CONNECTED(00000003) depth=1 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = rootca verify return:1 depth=0 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = test.local verify return:1 --- Certificate chain 0 s:/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=test.local i:/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca -----BEGIN CERTIFICATE----- MIIDpjCCAo6gAwIBAgIBAjANBgkqhkiG9w0BAQUFADBWMQswCQYDVQQGEwJBVTET MBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0cyBQ dHkgTHRkMQ8wDQYDVQQDEwZyb290Y2EwHhcNMTMwMjA0MTEwNjAzWhcNMTQwMjA0 ... -----END CERTIFICATE----- 1 s:/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca i:/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca -----BEGIN CERTIFICATE----- MIID6TCCAtGgAwIBAgIJAJ/7VmaN048RMA0GCSqGSIb3DQEBBQUAMFYxCzAJBgNV BAYTAkFVMRMwEQYDVQQIEwpTb21lLVN0YXRlMSEwHwYDVQQKExhJbnRlcm5ldCBX aWRnaXRzIFB0eSBMdGQxDzANBgNVBAMTBnJvb3RjYTAeFw0xMzAyMDQxMDM1NTda ... -----END CERTIFICATE----- --- Server certificate subject=/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=test.local issuer=/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca --- Acceptable client certificate CA names /C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca /C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=subca --- SSL handshake has read 3395 bytes and written 2779 bytes --- New, TLSv1/SSLv3, Cipher is AES256-SHA Server public key is 2048 bit Secure Renegotiation IS supported Compression: zlib compression Expansion: zlib compression SSL-Session: Protocol : TLSv1 Cipher : AES256-SHA Session-ID: 15BFC2029691262542FAE95A48078305E76EEE7D586400F8C4F7C516B0F9D967 Session-ID-ctx: Master-Key: 23246CF166E8F3900793F0A2561879E5DB07291F32E99591BA1CF53E6229491FEAE6858BFC9AACAF271D9C3706F139C7 Key-Arg : None PSK identity: None PSK identity hint: None SRP username: None TLS session ticket: 0000 - c2 5e 1d d2 b5 6d 40 23-b2 40 89 e4 35 75 70 07 .^...m@#[email protected]. 0010 - 1b bb 2b e6 e0 b5 ab 10-10 bf 46 6e aa 67 7f 58 ..+.......Fn.g.X 0020 - cf 0e 65 a4 67 5a 15 ba-aa 93 4e dd 3d 6e 73 4c ..e.gZ....N.=nsL 0030 - c5 56 f6 06 24 0f 48 e6-38 36 de f1 b5 31 c5 86 .V..$.H.86...1.. ... 0440 - 4c 53 39 e3 92 84 d2 d0-e5 e2 f5 8a 6a a8 86 b1 LS9.........j... Compression: 1 (zlib compression) Start Time: 1359989684 Timeout : 300 (sec) Verify return code: 0 (ok) --- Everything seems fine with Client #2 and root CA certificate but request returns 400 Bad Request error: # openssl s_client -connect test.local:443 -CAfile ~/pki/rootCA/certs/rootca.crt -cert ~/pki/subCA/certs/client2.crt -key ~/pki/subCA/private/client2.key -showcerts Enter pass phrase for tmp/testcert/client2.key: CONNECTED(00000003) depth=1 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = rootca verify return:1 depth=0 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = test.local verify return:1 ... Compression: 1 (zlib compression) Start Time: 1359989989 Timeout : 300 (sec) Verify return code: 0 (ok) --- GET / HTTP/1.0 HTTP/1.1 400 Bad Request Server: nginx/0.7.67 Date: Mon, 04 Feb 2013 15:00:43 GMT Content-Type: text/html Content-Length: 231 Connection: close <html> <head><title>400 The SSL certificate error</title></head> <body bgcolor="white"> <center><h1>400 Bad Request</h1></center> <center>The SSL certificate error</center> <hr><center>nginx/0.7.67</center> </body> </html> closed Verification fails with Client #2 certificate and subordinate CA certificate: # openssl s_client -connect test.local:443 -CAfile ~/pki/subCA/certs/subca.crt -cert ~/pki/subCA/certs/client2.crt -key ~/pki/subCA/private/client2.key -showcerts Enter pass phrase for tmp/testcert/client2.key: CONNECTED(00000003) depth=1 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = rootca verify error:num=19:self signed certificate in certificate chain verify return:0 ... Compression: 1 (zlib compression) Start Time: 1359990354 Timeout : 300 (sec) Verify return code: 19 (self signed certificate in certificate chain) --- GET / HTTP/1.0 HTTP/1.1 400 Bad Request ... Still getting 400 Bad Request error with concatenated CA certificates and Client #2 (but still everything ok with Client #1): # cat certs/rootca.crt ../subCA/certs/subca.crt > certs/concatenatedca.crt # openssl s_client -connect test.local:443 -CAfile ~/pki/rootCA/certs/concatenatedca.crt -cert ~/pki/subCA/certs/client2.crt -key ~/pki/subCA/private/client2.key -showcerts Enter pass phrase for tmp/testcert/client2.key: CONNECTED(00000003) depth=1 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = rootca verify return:1 depth=0 C = AU, ST = Some-State, O = Internet Widgits Pty Ltd, CN = test.local verify return:1 --- ... Compression: 1 (zlib compression) Start Time: 1359990772 Timeout : 300 (sec) Verify return code: 0 (ok) --- GET / HTTP/1.0 HTTP/1.1 400 Bad Request ... Update 2: I've managed to recompile nginx with enabled debug. Here is the part of successfull conection by Client #1 track: 2013/02/05 14:08:23 [debug] 38701#0: *119 accept: <MY IP ADDRESS> fd:3 2013/02/05 14:08:23 [debug] 38701#0: *119 event timer add: 3: 60000:2856497512 2013/02/05 14:08:23 [debug] 38701#0: *119 kevent set event: 3: ft:-1 fl:0025 2013/02/05 14:08:23 [debug] 38701#0: *119 malloc: 28805200:660 2013/02/05 14:08:23 [debug] 38701#0: *119 malloc: 28834400:1024 2013/02/05 14:08:23 [debug] 38701#0: *119 posix_memalign: 28860000:4096 @16 2013/02/05 14:08:23 [debug] 38701#0: *119 http check ssl handshake 2013/02/05 14:08:23 [debug] 38701#0: *119 https ssl handshake: 0x16 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL server name: "test.local" 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_do_handshake: -1 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_get_error: 2 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL handshake handler: 0 2013/02/05 14:08:23 [debug] 38701#0: *119 verify:1, error:0, depth:1, subject:"/C=AU /ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca",issuer: "/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca" 2013/02/05 14:08:23 [debug] 38701#0: *119 verify:1, error:0, depth:0, subject:"/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=Client #1",issuer: "/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca" 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_do_handshake: 1 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL: TLSv1, cipher: "AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1" 2013/02/05 14:08:23 [debug] 38701#0: *119 http process request line 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_read: -1 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_get_error: 2 2013/02/05 14:08:23 [debug] 38701#0: *119 http process request line 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_read: 1 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_read: 524 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_read: -1 2013/02/05 14:08:23 [debug] 38701#0: *119 SSL_get_error: 2 2013/02/05 14:08:23 [debug] 38701#0: *119 http request line: "GET / HTTP/1.1" And here is the part of unsuccessfull conection by Client #2 track: 2013/02/05 13:51:34 [debug] 38701#0: *112 accept: <MY_IP_ADDRESS> fd:3 2013/02/05 13:51:34 [debug] 38701#0: *112 event timer add: 3: 60000:2855488975 2013/02/05 13:51:34 [debug] 38701#0: *112 kevent set event: 3: ft:-1 fl:0025 2013/02/05 13:51:34 [debug] 38701#0: *112 malloc: 28805200:660 2013/02/05 13:51:34 [debug] 38701#0: *112 malloc: 28834400:1024 2013/02/05 13:51:34 [debug] 38701#0: *112 posix_memalign: 28860000:4096 @16 2013/02/05 13:51:34 [debug] 38701#0: *112 http check ssl handshake 2013/02/05 13:51:34 [debug] 38701#0: *112 https ssl handshake: 0x16 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL server name: "test.local" 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_do_handshake: -1 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_get_error: 2 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL handshake handler: 0 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_do_handshake: -1 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_get_error: 2 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL handshake handler: 0 2013/02/05 13:51:34 [debug] 38701#0: *112 verify:0, error:20, depth:1, subject:"/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=subca",issuer: "/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca" 2013/02/05 13:51:34 [debug] 38701#0: *112 verify:0, error:27, depth:1, subject:"/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=subca",issuer: "/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=rootca" 2013/02/05 13:51:34 [debug] 38701#0: *112 verify:1, error:27, depth:0, subject:"/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=Client #2",issuer: "/C=AU/ST=Some-State/O=Internet Widgits Pty Ltd/CN=subca" 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_do_handshake: 1 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL: TLSv1, cipher: "AES256-SHA SSLv3 Kx=RSA Au=RSA Enc=AES(256) Mac=SHA1" 2013/02/05 13:51:34 [debug] 38701#0: *112 http process request line 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_read: 1 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_read: 524 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_read: -1 2013/02/05 13:51:34 [debug] 38701#0: *112 SSL_get_error: 2 2013/02/05 13:51:34 [debug] 38701#0: *112 http request line: "GET / HTTP/1.1" So I'm getting OpenSSL error #20 and then #27. According to verify documentation: 20 X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY: unable to get local issuer certificate the issuer certificate could not be found: this occurs if the issuer certificate of an untrusted certificate cannot be found. 27 X509_V_ERR_CERT_UNTRUSTED: certificate not trusted the root CA is not marked as trusted for the specified purpose.

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• Change user control appearance based on state

  - by John

  I have a user control that consists of four overlapping items: 2 rectangles, an ellipse and a lable <UserControl x:Class="UserControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Width="50.1" Height="45.424" Background="Transparent" FontSize="24"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="3.303*" /> <RowDefinition Height="40*" /> <RowDefinition Height="2.121*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="5.344*" /> <ColumnDefinition Width="40.075*" /> <ColumnDefinition Width="4.663*" /> </Grid.ColumnDefinitions> <Rectangle Name="Rectangle1" RadiusX="5" RadiusY="5" Fill="DarkGray" Grid.ColumnSpan="3" Grid.RowSpan="3" /> <Ellipse Name="ellipse1" Fill="{Binding State}" Margin="0.016,0.001,4.663,0" Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="2" Stroke="Black" IsEnabled="True" Panel.ZIndex="2" /> <Label Name="lblNumber" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Foreground="White" FontWeight="Bold" FontSize="24" Grid.Column="1" Grid.Row="1" Padding="0" Panel.ZIndex="3">9</Label> <Rectangle Grid.Column="1" Grid.Row="1" Margin="0.091,0,4.663,0" Fill="Blue" Name="rectangle2" Stroke="Black" Grid.ColumnSpan="2" Panel.ZIndex="1" /> </Grid> Here is my business object that I want to control the state of my user control: Imports System.Data Imports System.ComponentModel Public Class BusinessObject Implements INotifyPropertyChanged 'Public logger As log4net.ILog Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged Private _state As States Public Enum States State1 State2 State3 End Enum Public Property State() As States Get Return _state End Get Set(ByVal value As States) If (value <> _state) Then _state = value RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("State")) End If End Set End Property Protected Sub OnPropertyChanged(ByVal name As String) RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(name)) End Sub I want to be able to change the state of a business object in the code behind and have that change the colors of multiple shapes in my usercontrol. I'm not sure about how to do the binding. I set the datacontext of the user control in the code behind but not sure if that's right. I'm new to WPF and programming in general and I'm stuck on where to go from here. Any recommendations would be greatly appreciated!!

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• Problem adding "Network Policy and Access Services" role in Server 2008

  - by Django Reinhardt

  We are encountering an Error Code 0x80070643 when attempting to add the "Network Policy and Access Services" role on a fresh Windows Server 2008 R2 installation. Is there a known solution for this problem? Here is what information we have available so far: From ServerManager.log... 2504: 2009-11-23 11:12:01.712 [CBS] installing 'IAS NT Service RasServerAll RasRoutingProtocols ' ... 2504: 2009-11-23 11:12:01.911 [CBS] ...parents that will be auto-installed: 'RasServer ' 2504: 2009-11-23 11:12:01.912 [CBS] ...default children to turn-off: '<none>' 2504: 2009-11-23 11:12:01.924 [CBS] ...current state of 'IAS NT Service': p: Staged, a: Staged, s: UninstallRequested 2504: 2009-11-23 11:12:01.924 [CBS] ...setting state of 'IAS NT Service' to 'InstallRequested' 2504: 2009-11-23 11:12:01.935 [CBS] ...current state of 'RasServerAll': p: Staged, a: Staged, s: UninstallRequested 2504: 2009-11-23 11:12:01.935 [CBS] ...setting state of 'RasServerAll' to 'InstallRequested' 2504: 2009-11-23 11:12:01.946 [CBS] ...current state of 'RasRoutingProtocols': p: Staged, a: Staged, s: UninstallRequested 2504: 2009-11-23 11:12:01.946 [CBS] ...setting state of 'RasRoutingProtocols' to 'InstallRequested' 2504: 2009-11-23 11:12:01.956 [CBS] ...current state of 'RasServer': p: Staged, a: Staged, s: UninstallRequested 2504: 2009-11-23 11:12:01.956 [CBS] ...setting state of 'RasServer' to 'InstallRequested' 2504: 2009-11-23 11:12:01.967 [CBS] ...'IAS NT Service' : applicability: Applicable 2504: 2009-11-23 11:12:01.977 [CBS] ...'RasServerAll' : applicability: Applicable 2504: 2009-11-23 11:12:01.987 [CBS] ...'RasRoutingProtocols' : applicability: Applicable 2504: 2009-11-23 11:12:01.998 [CBS] ...'RasServer' : applicability: Applicable 2504: 2009-11-23 11:12:02.906 [CbsUIHandler] Initiate: 2504: 2009-11-23 11:12:02.906 [InstallationProgressPage] Installing... 2504: 2009-11-23 11:12:54.311 [CbsUIHandler] Error: -2147023293 : 2504: 2009-11-23 11:12:54.313 [CbsUIHandler] Terminate: 2504: 2009-11-23 11:12:54.316 [InstallationProgressPage] Verifying installation... 2504: 2009-11-23 11:12:54.326 [CBS] ...done installing 'IAS NT Service RasServerAll RasRoutingProtocols '. Status: -2147023293 (80070643) 2504: 2009-11-23 11:12:54.329 [NPAS] Skipped configuration of 'Network Policy Server' because install operation failed. 2504: 2009-11-23 11:12:54.330 [NPAS] Skipped configuration of 'Remote Access Service' because install operation failed. 2504: 2009-11-23 11:12:54.330 [NPAS] Skipped configuration of 'Routing' because install operation failed. 2504: 2009-11-23 11:12:54.330 [Provider] [STAT] ---- CBS Session Consolidation ----- [STAT] For 'Network Policy Server', 'Remote Access Service', 'Routing'[STAT] installation(s) took '52.616957' second(s) total. [STAT] Configuration(s) took '0.0004948' second(s) total. [STAT] Total time: '52.6174518' second(s). From System Event Viewer... Log Name: System Source: Service Control Manager Date: 23/11/2009 11:12:23 Event ID: 7023 Task Category: None Level: Error Keywords: Classic User: N/A Computer: Av7Analytics Description: The Network Policy Server service terminated with the following error: %%-2147013892 Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Service Control Manager" Guid="{555908d1-a6d7-4695-8e1e-26931d2012f4}" EventSourceName="Service Control Manager" /> <EventID Qualifiers="49152">7023</EventID> <Version>0</Version> <Level>2</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x8080000000000000</Keywords> <TimeCreated SystemTime="2009-11-23T11:12:23.653578500Z" /> <EventRecordID>1317</EventRecordID> <Correlation /> <Execution ProcessID="468" ThreadID="2308" /> <Channel>System</Channel> <Computer>Av7Analytics</Computer> <Security /> </System> <EventData> <Data Name="param1">Network Policy Server</Data> <Data Name="param2">%%-2147013892</Data> </EventData> </Event> From Setup Event Viewer... Log Name: Setup Source: Microsoft-Windows-ServerManager Date: 23/11/2009 11:12:56 Event ID: 1616 Task Category: None Level: Error Keywords: User: AV7ANALYTICS\RenamedAdmin Computer: Av7Analytics Description: Installation failed. Roles: Network Policy and Access Services Error: Attempt to install Network Policy Server failed with error code 0x80070643. Fatal error during installation Error: Attempt to install Remote Access Service failed with error code 0x80070643. Fatal error during installation Error: Attempt to install Routing failed with error code 0x80070643. Fatal error during installation The following role services were not installed: Network Policy Server Routing and Remote Access Services Remote Access Service Routing Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Microsoft-Windows-ServerManager" Guid="{8C474092-13E4-430E-9F06-5B60A529BF38}" /> <EventID>1616</EventID> <Version>0</Version> <Level>2</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x4000000000000000</Keywords> <TimeCreated SystemTime="2009-11-23T11:12:56.046431200Z" /> <EventRecordID>115</EventRecordID> <Correlation /> <Execution ProcessID="2504" ThreadID="2344" /> <Channel>Setup</Channel> <Computer>Av7Analytics</Computer> <Security UserID="S-1-5-21-2753803390-1569373846-1208217686-500" /> </System> <UserData> <EventXML xmlns:auto-ns3="http://schemas.microsoft.com/win/2004/08/events" xmlns="Event_NS"> <message> Roles: Network Policy and Access Services Error: Attempt to install Network Policy Server failed with error code 0x80070643. Fatal error during installation Error: Attempt to install Remote Access Service failed with error code 0x80070643. Fatal error during installation Error: Attempt to install Routing failed with error code 0x80070643. Fatal error during installation The following role services were not installed: Network Policy Server Routing and Remote Access Services Remote Access Service Routing </message> <identifiers>14, 206, 207, 208, 205</identifiers> </EventXML> </UserData> Thanks in advance for any help. It's quite shocking that we're already having problems with Microsoft's "latest and greatest".

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• Norton Ghost EBAB03F1: The specified network name is no longer available

  - by Breck Carter

  After about 15 minutes, a Norton Ghost 14 backup fails with Error EBAB03F1: The specified network name is no longer available. The source computer is a P4 laptop running Windows XP SP3. The target computer is a Core2 Quad desktop running Windows Vista Ultimate 64bit. It does not help to disable Norton 360 on the source computer or Norton Antivirus 2008 on the target computer. The Event Viewer consistently shows the same two VSS-related errors after Norton Ghost starts but before it fails. It makes no difference if the VSS service is started or stopped. The VSS errors do not appear elsewhere in the event log, only after Ghost starts. The MSS event messages, however, are quite common, appearing throughout the log, and they may have nothing to do with the problem. Here is the Norton Ghost error display... -Errors exist. --Unable to write to file. ---Error EBAB03F1: The specified network name is no longer available. ---Unable to set file size. ----Error EBAB03F1: The specified network name is no longer available. ----Unable to write to file. -----Error EBAB03F1: The specified network name is no longer available. -----Unable to set file size. ------Error EBAB03F1: The specified network name is no longer available. Here are the source computer events, with the final error at the top and the "Ghost Starting" message at the bottom: ===== Event Type: Error Event Source: Norton Ghost Event Category: High Priority Event ID: 100 Date: 11/09/2009 Time: 9:40:26 AM User: N/A Computer: PAVILION2 Description: Error EC8F17B7: Cannot create recovery points for job: Drive Backup of (C:\) (3). Error E7D1001F: Unable to write to file. Error EBAB03F1: The specified network name is no longer available. Error E7D10046: Unable to set file size. Error EBAB03F1: The specified network name is no longer available. Error E7D1001F: Unable to write to file. Error EBAB03F1: The specified network name is no longer available. Error E7D10046: Unable to set file size. Error EBAB03F1: The specified network name is no longer available. Details: 0xEBAB0005 Source: Norton Ghost ===== Event Type: Information Event Source: MSSQL$SQLEXPRESS Event Category: Server Event ID: 3421 Date: 11/09/2009 Time: 9:34:06 AM User: NT AUTHORITY\NETWORK SERVICE Computer: PAVILION2 Description: Recovery completed for database ReportServer$SQLEXPRESSTempDB (database ID 6) in 1 second(s) (analysis 205 ms, redo 0 ms, undo 376 ms.) This is an informational message only. No user action is required. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 5d 0d 00 00 0a 00 00 00 ]....... 0008: 15 00 00 00 50 00 41 00 ....P.A. 0010: 56 00 49 00 4c 00 49 00 V.I.L.I. 0018: 4f 00 4e 00 32 00 5c 00 O.N.2.\. 0020: 53 00 51 00 4c 00 45 00 S.Q.L.E. 0028: 58 00 50 00 52 00 45 00 X.P.R.E. 0030: 53 00 53 00 00 00 18 00 S.S..... 0038: 00 00 52 00 65 00 70 00 ..R.e.p. 0040: 6f 00 72 00 74 00 53 00 o.r.t.S. 0048: 65 00 72 00 76 00 65 00 e.r.v.e. 0050: 72 00 24 00 53 00 51 00 r.$.S.Q. 0058: 4c 00 45 00 58 00 50 00 L.E.X.P. 0060: 52 00 45 00 53 00 53 00 R.E.S.S. 0068: 00 00 .. ===== Event Type: Information Event Source: MSSQL$SQLEXPRESS Event Category: Server Event ID: 17137 Date: 11/09/2009 Time: 9:34:02 AM User: NT AUTHORITY\NETWORK SERVICE Computer: PAVILION2 Description: Starting up database 'ReportServer$SQLEXPRESSTempDB'. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: f1 42 00 00 0a 00 00 00 ñB...... 0008: 15 00 00 00 50 00 41 00 ....P.A. 0010: 56 00 49 00 4c 00 49 00 V.I.L.I. 0018: 4f 00 4e 00 32 00 5c 00 O.N.2.\. 0020: 53 00 51 00 4c 00 45 00 S.Q.L.E. 0028: 58 00 50 00 52 00 45 00 X.P.R.E. 0030: 53 00 53 00 00 00 18 00 S.S..... 0038: 00 00 52 00 65 00 70 00 ..R.e.p. 0040: 6f 00 72 00 74 00 53 00 o.r.t.S. 0048: 65 00 72 00 76 00 65 00 e.r.v.e. 0050: 72 00 24 00 53 00 51 00 r.$.S.Q. 0058: 4c 00 45 00 58 00 50 00 L.E.X.P. 0060: 52 00 45 00 53 00 53 00 R.E.S.S. 0068: 00 00 .. ===== Event Type: Error Event Source: VSS Event Category: None Event ID: 5013 Date: 11/09/2009 Time: 9:28:32 AM User: N/A Computer: PAVILION2 Description: Volume Shadow Copy Service error: Shadow Copy writer ContentIndexingService called routine RegQueryValueExW which failed with status 0x80070002 (converted to 0x800423f4). For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 57 53 48 43 4f 4d 4e 43 WSHCOMNC 0008: 32 32 39 32 00 00 00 00 2292.... 0010: 57 53 48 43 49 43 00 00 WSHCIC.. 0018: 32 38 37 00 00 00 00 00 287..... ===== Event Type: Error Event Source: VSS Event Category: None Event ID: 5013 Date: 11/09/2009 Time: 9:28:32 AM User: N/A Computer: PAVILION2 Description: Volume Shadow Copy Service error: Shadow Copy writer ContentIndexingService called routine RegQueryValueExW which failed with status 0x80070002 (converted to 0x800423f4). For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 57 53 48 43 4f 4d 4e 43 WSHCOMNC 0008: 32 32 39 32 00 00 00 00 2292.... 0010: 57 53 48 43 49 43 00 00 WSHCIC.. 0018: 32 38 37 00 00 00 00 00 287..... ===== Event Type: Error Event Source: VSS Event Category: None Event ID: 12302 Date: 11/09/2009 Time: 9:28:32 AM User: N/A Computer: PAVILION2 Description: Volume Shadow Copy Service error: An internal inconsistency was detected in trying to contact shadow copy service writers. Please check to see that the Event Service and Volume Shadow Copy Service are operating properly. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 42 55 45 43 58 4d 4c 43 BUECXMLC 0008: 33 36 33 37 00 00 00 00 3637.... 0010: 42 55 45 43 58 4d 4c 43 BUECXMLC 0018: 33 36 30 37 00 00 00 00 3607.... ===== Event Type: Information Event Source: Norton Ghost Event Category: High Priority Event ID: 100 Date: 11/09/2009 Time: 9:27:57 AM User: N/A Computer: PAVILION2 Description: Info 6C8F1F63: The drive-based backup job, Drive Backup of (C:\) (3), has been started manually. Details: Source: Norton Ghost

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• Windows Server 2008 R2 network adapter stops working, requires hard reboot

  - by Geoff Dalgas

  TL;DR version: Turns out this was a Windows Server 2008 R2 kernel networking bug. After siccing Microsoft support on it, we (eventually) got an unpublished kernel hotfix from Microsoft to address it. If you, too, are experiencing mysterious low-level network driver failures requiring a reboot/bluescreen cycle, you might want that hotfix (or maybe Service Pack 1 whenever it is released, too.) We have been using HAProxy along with heartbeat from the Linux-HA project. We are using two linux instances to provide a failover. Each server has with their own public IP and a single IP which is shared between the two using a virtual interface (eth1:1) at IP: 69.59.196.211 The virtual interface (eth1:1) IP 69.59.196.211 is configured as the gateway for the windows servers behind them and we use ip_forwarding to route traffic. We are experiencing an occasional network outage on one of our windows servers behind our linux gateways. HAProxy will detect the server is offline which we can verify by remoting to the failed server and attempting to ping the gateway: Pinging 69.59.196.211 with 32 bytes of data: Reply from 69.59.196.220: Destination host unreachable. Running arp -a on this failed server shows that there is no entry for the gateway address (69.59.196.211): Interface: 69.59.196.220 --- 0xa Internet Address Physical Address Type 69.59.196.161 00-26-88-63-c7-80 dynamic 69.59.196.210 00-15-5d-0a-3e-0e dynamic 69.59.196.212 00-21-5e-4d-45-c9 dynamic 69.59.196.213 00-15-5d-00-b2-0d dynamic 69.59.196.215 00-21-5e-4d-61-1a dynamic 69.59.196.217 00-21-5e-4d-2c-e8 dynamic 69.59.196.219 00-21-5e-4d-38-e5 dynamic 69.59.196.221 00-15-5d-00-b2-0d dynamic 69.59.196.222 00-15-5d-0a-3e-09 dynamic 69.59.196.223 ff-ff-ff-ff-ff-ff static 224.0.0.22 01-00-5e-00-00-16 static 224.0.0.252 01-00-5e-00-00-fc static 225.0.0.1 01-00-5e-00-00-01 static On our linux gateway instances arp -a shows: peak-colo-196-220.peak.org (69.59.196.220) at <incomplete> on eth1 stackoverflow.com (69.59.196.212) at 00:21:5e:4d:45:c9 [ether] on eth1 peak-colo-196-215.peak.org (69.59.196.215) at 00:21:5e:4d:61:1a [ether] on eth1 peak-colo-196-219.peak.org (69.59.196.219) at 00:21:5e:4d:38:e5 [ether] on eth1 peak-colo-196-222.peak.org (69.59.196.222) at 00:15:5d:0a:3e:09 [ether] on eth1 peak-colo-196-209.peak.org (69.59.196.209) at 00:26:88:63:c7:80 [ether] on eth1 peak-colo-196-217.peak.org (69.59.196.217) at 00:21:5e:4d:2c:e8 [ether] on eth1 Why would arp occasionally set the entry for this failed server as <incomplete>? Should we be defining our arp entries statically? I've always left arp alone since it works 99% of the time, but in this one instance it appears to be failing. Are there any additional troubleshooting steps we can take help resolve this issue? THINGS WE HAVE TRIED I added a static arp entry for testing on one of the linux gateways which still didn't help. root@haproxy2:~# arp -a peak-colo-196-215.peak.org (69.59.196.215) at 00:21:5e:4d:61:1a [ether] on eth1 peak-colo-196-221.peak.org (69.59.196.221) at 00:15:5d:00:b2:0d [ether] on eth1 stackoverflow.com (69.59.196.212) at 00:21:5e:4d:45:c9 [ether] on eth1 peak-colo-196-219.peak.org (69.59.196.219) at 00:21:5e:4d:38:e5 [ether] on eth1 peak-colo-196-209.peak.org (69.59.196.209) at 00:26:88:63:c7:80 [ether] on eth1 peak-colo-196-217.peak.org (69.59.196.217) at 00:21:5e:4d:2c:e8 [ether] on eth1 peak-colo-196-220.peak.org (69.59.196.220) at 00:21:5e:4d:30:8d [ether] PERM on eth1 root@haproxy2:~# arp -i eth1 -s 69.59.196.220 00:21:5e:4d:30:8d root@haproxy2:~# ping 69.59.196.220 PING 69.59.196.220 (69.59.196.220) 56(84) bytes of data. --- 69.59.196.220 ping statistics --- 7 packets transmitted, 0 received, 100% packet loss, time 6006ms Rebooting the windows web server solves this issue temporarily with no other changes to the network but our experience shows this issue will come back. Swapping network cards and switches I noticed the link light on the port of the switch for the failed windows server was running at 100Mb instead of 1Gb on the failed interface. I moved the cable to several other open ports and the link indicated 100Mb for each port that I tried. I also swapped the cable with the same result. I tried changing the properties of the network card in windows and the server locked up and required a hard reset after clicking apply. This windows server has two physical network interfaces so I have swapped the cables and network settings on the two interfaces to see if the problem follows the interface. If the public interface goes down again we will know that it is not an issue with the network card. (We also tried another switch we have on hand, no change) Changing network hardware driver versions We've had the same problem with the latest Broadcom driver, as well as the built-in driver that ships in Windows Server 2008 R2. Replacing network cables As a last ditch effort we remembered another change that occurred was the replacement of all of the patch cords between our servers / switch. We had purchased two sets, one green of lengths 1ft - 3ft for the private interfaces and another set of red cables for the public interfaces. We swapped out all of the public interface patch cables with a different brand and ran our servers without issue for a full week ... aaaaaand then the problem recurred. Disable checksum offload, remove TProxy We also tried disabling TCP/IP checksum offload in the driver, no change. We're now pulling out TProxy and moving to a more traditional x-forwarded-for network arrangement without any fancy IP address rewriting. We'll see if that helps. Switch Virtualization providers On the off chance this was related to Hyper-V in some way (we do host Linux VMs on it), we switched to VMWare Server. No change. Switch host model We've reached the end of our troubleshooting rope and are now formally involving Microsoft support. They recommended changing the host model: http://en.wikipedia.org/wiki/Host_model http://technet.microsoft.com/en-us/magazine/2007.09.cableguy.aspx We did that, and.. we'll see.

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• How to Route Traffic in Case PPTP Remote Client is on Same Subnet as Server

  - by Marcus Cole

  I've a PPTP server setup on my local home network (192.168.1.0/24, pfSense). Now sometimes when I'm away and want to connect remotely my client (Windows 7) is also on the same network because e.g. the hotel has set it up the same way. Thus the connection works, but I can't reach any PC on my home network because everything is routed directly to the client local router which is in the same subnet. Is there a way to work around this by messing with a configuration or adapting Windows routing table, i.e. without modifying either network?

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• How to configure wireless in gentoo?

  - by Absolute0

  I have a single access point which i want to connect to on interface ra0, when I run /etc/init.d/ra0 restart I get the following output: gentoo ~ # /etc/init.d/net.ra0 restart * Starting ra0 * Configuring wireless network for ra0 Error for wireless request "Set Mode" (8B06) : SET failed on device ra0 ; Network is down. * ra0 does not support setting the mode to "managed" Error for wireless request "Set Encode" (8B2A) : SET failed on device ra0 ; Network is down. * ra0 does not support setting keys * or the parameter "mac_key_roswell" or "key_roswell" is incorrect Error for wireless request "Set Mode" (8B06) : SET failed on device ra0 ; Network is down. * ra0 does not support setting the mode to "managed" * WEP key is not set for "BAY_WiFi" - not connecting * Couldn't associate with any access points on ra0 * Failed to configure wireless for ra0 when I run iwlist ra0 scan I get "roswell" and "bay-wifi" I want to connect to only roswell. Here is my /etc/conf.d/net: modules= ( "iwconfig" ) key_roswell="ffff-ffff-ff" # no s: means a hex key preferred_aps=( "roswell" ) what am i doing wrong?

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• How to configure wireless in gentoo?

  - by Absolute0

  I have a single access point which i want to connect to on interface ra0, when I run /etc/init.d/ra0 restart I get the following output: gentoo ~ # /etc/init.d/net.ra0 restart * Starting ra0 * Configuring wireless network for ra0 Error for wireless request "Set Mode" (8B06) : SET failed on device ra0 ; Network is down. * ra0 does not support setting the mode to "managed" Error for wireless request "Set Encode" (8B2A) : SET failed on device ra0 ; Network is down. * ra0 does not support setting keys * or the parameter "mac_key_roswell" or "key_roswell" is incorrect Error for wireless request "Set Mode" (8B06) : SET failed on device ra0 ; Network is down. * ra0 does not support setting the mode to "managed" * WEP key is not set for "BAY_WiFi" - not connecting * Couldn't associate with any access points on ra0 * Failed to configure wireless for ra0 when I run iwlist ra0 scan I get "roswell" and "bay-wifi" I want to connect to only roswell. Here is my /etc/conf.d/net: modules= ( "iwconfig" ) key_roswell="ffff-ffff-ff" # no s: means a hex key preferred_aps=( "roswell" ) what am i doing wrong?

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• Disable Ethernet permanently to speed up boot time

  - by Anwar Shah

  I do not use the wired Ethernet Card. It seems to me that, Ubuntu is always trying in boot time to check the network via eth0, Which consumes some times and I guess this may slow down the boot process a bit. My dmesg output is below (partial) 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 1.985592] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:01/input/input5 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 1.985651] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 1.985693] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 2.056261] firewire_core: created device fw0: GUID 00023f87af41fd7d, S400 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 3.710435] EXT4-fs (sda9): mounted filesystem with ordered data mode. Opts: (null) A big time here..... 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 13.466642] ADDRCONF(NETDEV_UP): eth0: link is not ready 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.125296] Adding 1050620k swap on /dev/sda6. Priority:-1 extents:1 across:1050620k 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.226952] EXT4-fs (sda9): re-mounted. Opts: (null) 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.335012] snd_hda_intel 0000:00:1b.0: PCI INT A - GSI 22 (level, low) - IRQ 22 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.335091] snd_hda_intel 0000:00:1b.0: irq 45 for MSI/MSI-X 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.335128] snd_hda_intel 0000:00:1b.0: setting latency timer to 64 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.346410] input: Ideapad extra buttons as /devices/platform/ideapad/input/input6 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.428551] input: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.436958] cfg80211: Calling CRDA to update world regulatory domain 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.476550] Linux video capture interface: v2.00 2012-06-11 23:06:47 Ubuntu-KDE kernel [ 14.486385] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (04f2:b008) So, My question is How can I disable the Ethernet card completely, so that kernel will not try to use that?

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• Global Cache CR Requested But Current Block Received

  - by Liu Maclean(???)

  ????????«MINSCN?Cache Fusion Read Consistent» ????,???????????? ??????????????????: SQL> select * from V$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> select count(*) from gv$instance; COUNT(*) ---------- 2 SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- www.oracledatabase12g.com ?11gR2 2??RAC??????????status???XG,????Xcurrent block???INSTANCE 2?hold?,?????INSTANCE 1?????????,?????: SQL> select * from test; ID ---------- 1 2 SQL> select dbms_rowid.rowid_block_number(rowid),dbms_rowid.rowid_relative_fno(rowid) from test; DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) ------------------------------------ ------------------------------------ 89233 1 89233 1 SQL> alter system flush buffer_cache; System altered. INSTANCE 1 Session A: SQL> update test set id=id+1 where id=1; 1 row updated. INSTANCE 1 Session B: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1755287 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump gc_elements 255; Statement processed. SQL> oradebug tracefile_name; /s01/orabase/diag/rdbms/vprod/VPROD1/trace/VPROD1_ora_19111.trc GLOBAL CACHE ELEMENT DUMP (address: 0xa4ff3080): id1: 0x15c91 id2: 0x1 pkey: OBJ#76896 block: (1/89233) lock: X rls: 0x0 acq: 0x0 latch: 3 flags: 0x20 fair: 0 recovery: 0 fpin: 'kdswh11: kdst_fetch' bscn: 0x0.146e20 bctx: (nil) write: 0 scan: 0x0 lcp: (nil) lnk: [NULL] lch: [0xa9f6a6f8,0xa9f6a6f8] seq: 32 hist: 58 145:0 118 66 144:0 192 352 197 48 121 113 424 180 58 LIST OF BUFFERS LINKED TO THIS GLOBAL CACHE ELEMENT: flg: 0x02000001 lflg: 0x1 state: XCURRENT tsn: 0 tsh: 2 addr: 0xa9f6a5c8 obj: 76896 cls: DATA bscn: 0x0.1ac898 BH (0xa9f6a5c8) file#: 1 rdba: 0x00415c91 (1/89233) class: 1 ba: 0xa9e56000 set: 5 pool: 3 bsz: 8192 bsi: 0 sflg: 3 pwc: 0,15 dbwrid: 0 obj: 76896 objn: 76896 tsn: 0 afn: 1 hint: f hash: [0x91f4e970,0xbae9d5b8] lru: [0x91f58848,0xa9f6a828] lru-flags: debug_dump obj-flags: object_ckpt_list ckptq: [0x9df6d1d8,0xa9f6a740] fileq: [0xa2ece670,0xbdf4ed68] objq: [0xb4964e00,0xb4964e00] objaq: [0xb4964de0,0xb4964de0] st: XCURRENT md: NULL fpin: 'kdswh11: kdst_fetch' tch: 2 le: 0xa4ff3080 flags: buffer_dirty redo_since_read LRBA: [0x19.5671.0] LSCN: [0x0.1ac898] HSCN: [0x0.1ac898] HSUB: [1] buffer tsn: 0 rdba: 0x00415c91 (1/89233) scn: 0x0000.001ac898 seq: 0x01 flg: 0x00 tail: 0xc8980601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data ??????block: (1/89233)?GLOBAL CACHE ELEMENT DUMP?LOCK????X ??XG , ??????Current Block????Instance??modify???,????????????? ????Instance 2 ????: Instance 2 Session C: SQL> update test set id=id+1 where id=2; 1 row updated. Instance 2 Session D: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1756658 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump gc_elements 255; Statement processed. SQL> oradebug tracefile_name; /s01/orabase/diag/rdbms/vprod/VPROD2/trace/VPROD2_ora_13038.trc GLOBAL CACHE ELEMENT DUMP (address: 0x89fb25a0): id1: 0x15c91 id2: 0x1 pkey: OBJ#76896 block: (1/89233) lock: XG rls: 0x0 acq: 0x0 latch: 3 flags: 0x20 fair: 0 recovery: 0 fpin: 'kduwh01: kdusru' bscn: 0x0.1acdf3 bctx: (nil) write: 0 scan: 0x0 lcp: (nil) lnk: [NULL] lch: [0x96f4cf80,0x96f4cf80] seq: 61 hist: 324 21 143:0 19 16 352 329 144:6 14 7 352 197 LIST OF BUFFERS LINKED TO THIS GLOBAL CACHE ELEMENT: flg: 0x0a000001 state: XCURRENT tsn: 0 tsh: 1 addr: 0x96f4ce50 obj: 76896 cls: DATA bscn: 0x0.1acdf6 BH (0x96f4ce50) file#: 1 rdba: 0x00415c91 (1/89233) class: 1 ba: 0x96bd4000 set: 5 pool: 3 bsz: 8192 bsi: 0 sflg: 2 pwc: 0,15 dbwrid: 0 obj: 76896 objn: 76896 tsn: 0 afn: 1 hint: f hash: [0x96ee1fe8,0xbae9d5b8] lru: [0x96f4d0b0,0x96f4cdc0] obj-flags: object_ckpt_list ckptq: [0xbdf519b8,0x96f4d5a8] fileq: [0xbdf519d8,0xbdf519d8] objq: [0xb4a47b90,0xb4a47b90] objaq: [0x96f4d0e8,0xb4a47b70] st: XCURRENT md: NULL fpin: 'kduwh01: kdusru' tch: 1 le: 0x89fb25a0 flags: buffer_dirty redo_since_read remote_transfered LRBA: [0x11.9e18.0] LSCN: [0x0.1acdf6] HSCN: [0x0.1acdf6] HSUB: [1] buffer tsn: 0 rdba: 0x00415c91 (1/89233) scn: 0x0000.001acdf6 seq: 0x01 flg: 0x00 tail: 0xcdf60601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data GCS CLIENT 0x89fb2618,6 resp[(nil),0x15c91.1] pkey 76896.0 grant 2 cvt 0 mdrole 0x42 st 0x100 lst 0x20 GRANTQ rl G0 master 1 owner 2 sid 0 remote[(nil),0] hist 0x94121c601163423c history 0x3c.0x4.0xd.0xb.0x1.0xc.0x7.0x9.0x14.0x1. cflag 0x0 sender 1 flags 0x0 replay# 0 abast (nil).x0.1 dbmap (nil) disk: 0x0000.00000000 write request: 0x0000.00000000 pi scn: 0x0000.00000000 sq[(nil),(nil)] msgseq 0x1 updseq 0x0 reqids[6,0,0] infop (nil) lockseq x2b8 pkey 76896.0 hv 93 [stat 0x0, 1->1, wm 32768, RMno 0, reminc 18, dom 0] kjga st 0x4, step 0.0.0, cinc 20, rmno 6, flags 0x0 lb 0, hb 0, myb 15250, drmb 15250, apifrz 0 ?Instance 2??????block: (1/89233)? GLOBAL CACHE ELEMENT Lock Convert?lock: XG ????GC_ELEMENTS DUMP???XCUR Cache Fusion?,???????X$ VIEW,??? X$LE X$KJBR X$KJBL, ???X$ VIEW???????????????????: INSTANCE 2 Session D: SELECT * FROM x$le WHERE le_addr IN (SELECT le_addr FROM x$bh WHERE obj IN (SELECT data_object_id FROM dba_objects WHERE owner = 'SYS' AND object_name = 'TEST') AND class = 1 AND state != 3); ADDR INDX INST_ID LE_ADDR LE_ID1 LE_ID2 ---------------- ---------- ---------- ---------------- ---------- ---------- LE_RLS LE_ACQ LE_FLAGS LE_MODE LE_WRITE LE_LOCAL LE_RECOVERY ---------- ---------- ---------- ---------- ---------- ---------- ----------- LE_BLKS LE_TIME LE_KJBL ---------- ---------- ---------------- 00007F94CA14CF60 7003 2 0000000089FB25A0 89233 1 0 0 32 2 0 1 0 1 0 0000000089FB2618 PCM Resource NAME?[ID1][ID2],[BL]???, ID1?ID2 ??blockno? fileno????, ??????????GC_elements dump?? id1: 0x15c91 id2: 0×1 pkey: OBJ#76896 block: (1/89233)?? ,?  kjblname ? kjbrname ??”[0x15c91][0x1],[BL]” ??: INSTANCE 2 Session D: SQL> set linesize 80 pagesize 1400 SQL> SELECT * 2 FROM x$kjbl l 3 WHERE l.kjblname LIKE '%[0x15c91][0x1],[BL]%'; ADDR INDX INST_ID KJBLLOCKP KJBLGRANT KJBLREQUE ---------------- ---------- ---------- ---------------- --------- --------- KJBLROLE KJBLRESP KJBLNAME ---------- ---------------- ------------------------------ KJBLNAME2 KJBLQUEUE ------------------------------ ---------- KJBLLOCKST KJBLWRITING ---------------------------------------------------------------- ----------- KJBLREQWRITE KJBLOWNER KJBLMASTER KJBLBLOCKED KJBLBLOCKER KJBLSID KJBLRDOMID ------------ ---------- ---------- ----------- ----------- ---------- ---------- KJBLPKEY ---------- 00007F94CA22A288 451 2 0000000089FB2618 KJUSEREX KJUSERNL 0 00 [0x15c91][0x1],[BL][ext 0x0,0x 89233,1,BL 0 GRANTED 0 0 1 0 0 0 0 0 76896 SQL> SELECT r.* FROM x$kjbr r WHERE r.kjbrname LIKE '%[0x15c91][0x1],[BL]%'; no rows selected Instance 1 session B: SQL> SELECT r.* FROM x$kjbr r WHERE r.kjbrname LIKE '%[0x15c91][0x1],[BL]%'; ADDR INDX INST_ID KJBRRESP KJBRGRANT KJBRNCVL ---------------- ---------- ---------- ---------------- --------- --------- KJBRROLE KJBRNAME KJBRMASTER KJBRGRANTQ ---------- ------------------------------ ---------- ---------------- KJBRCVTQ KJBRWRITER KJBRSID KJBRRDOMID KJBRPKEY ---------------- ---------------- ---------- ---------- ---------- 00007F801ACA68F8 1355 1 00000000B5A62AE0 KJUSEREX KJUSERNL 0 [0x15c91][0x1],[BL][ext 0x0,0x 0 00000000B48BB330 00 00 0 0 76896 ??????Instance 1???block: (1/89233),??????Instance 2 build cr block ????Instance 1, ?????????? ????? Instance 1? Foreground Process ? Instance 2?LMS??????RAC  TRACE: Instance 2: [oracle@vrh2 ~]$ ps -ef|grep ora_lms|grep -v grep oracle 23364 1 0 Apr29 ? 00:33:15 ora_lms0_VPROD2 SQL> oradebug setospid 23364 Oracle pid: 13, Unix process pid: 23364, image: [email protected] (LMS0) SQL> oradebug event 10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high; Statement processed. SQL> oradebug tracefile_name /s01/orabase/diag/rdbms/vprod/VPROD2/trace/VPROD2_lms0_23364.trc Instance 1 session B : SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1756658 3 1756661 3 1755287 Instance 1 session A : SQL> alter session set events '10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high'; Session altered. SQL> select * from test; ID ---------- 2 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1761520 ?x$BH?????,???????Instance 1???build??CR block,????? TRACE ??: Instance 1 foreground Process: PARSING IN CURSOR #140336527348792 len=18 dep=0 uid=0 oct=3 lid=0 tim=1335939136125254 hv=1689401402 ad='b1a4c828' sqlid='c99yw1xkb4f1u' select * from test END OF STMT PARSE #140336527348792:c=2999,e=2860,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=1,plh=1357081020,tim=1335939136125253 EXEC #140336527348792:c=0,e=40,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939136125373 WAIT #140336527348792: nam='SQL*Net message to client' ela= 6 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335939136125420 *** 2012-05-02 02:12:16.125 kclscrs: req=0 block=1/89233 2012-05-02 02:12:16.125574 : kjbcro[0x15c91.1 76896.0][4] *** 2012-05-02 02:12:16.125 kclscrs: req=0 typ=nowait-abort *** 2012-05-02 02:12:16.125 kclscrs: bid=1:3:1:0:f:1e:0:0:10:0:0:0:1:2:4:1:20:0:0:0:c3:49:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:1c:0:4d:26:a3:52:0:0:0:0:c7:c:ca:62:c3:49:0:0:0:0:1:0:14:8e:47:76:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:99:ed:0:0:0:0:0:0:10:0:0:0 2012-05-02 02:12:16.125718 : kjbcro[0x15c91.1 76896.0][4] 2012-05-02 02:12:16.125751 : GSIPC:GMBQ: buff 0xba0ee018, queue 0xbb79a7b8, pool 0x60013fa0, freeq 0, nxt 0xbb79a7b8, prv 0xbb79a7b8 2012-05-02 02:12:16.125780 : kjbsentscn[0x0.1ae0f0][to 2] 2012-05-02 02:12:16.125806 : GSIPC:SENDM: send msg 0xba0ee088 dest x20001 seq 177740 type 36 tkts xff0000 mlen x1680198 2012-05-02 02:12:16.125918 : kjbmscr(0x15c91.1)reqid=0x8(req 0xa4ff30f8)(rinst 1)hldr 2(infosz 200)(lseq x2b8) 2012-05-02 02:12:16.126959 : GSIPC:KSXPCB: msg 0xba0ee088 status 30, type 36, dest 2, rcvr 1 *** 2012-05-02 02:12:16.127 kclwcrs: wait=0 tm=1233 *** 2012-05-02 02:12:16.127 kclwcrs: got 1 blocks from ksxprcv WAIT #140336527348792: nam='gc cr block 2-way' ela= 1233 p1=1 p2=89233 p3=1 obj#=76896 tim=1335939136127199 2012-05-02 02:12:16.127272 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-05-02 02:12:16.127309 : kjbrcvdscn[0x0.1ae0f0][from 2][idx 2012-05-02 02:12:16.127329 : kjbrcvdscn[no bscn <= rscn 0x0.1ae0f0][from 2] ???? kjbcro[0x15c91.1 76896.0][4] kjbsentscn[0x0.1ae0f0][to 2] ?Instance 2??SCN=1ae0f0=1761520? block: (1/89233),???’gc cr block 2-way’ ??,?????????CR block? Instance 2 LMS TRACE 2012-05-02 02:12:15.634057 : GSIPC:RCVD: ksxp msg 0x7f16e1598588 sndr 1 seq 0.177740 type 36 tkts 0 2012-05-02 02:12:15.634094 : GSIPC:RCVD: watq msg 0x7f16e1598588 sndr 1, seq 177740, type 36, tkts 0 2012-05-02 02:12:15.634108 : GSIPC:TKT: collect msg 0x7f16e1598588 from 1 for rcvr -1, tickets 0 2012-05-02 02:12:15.634162 : kjbrcvdscn[0x0.1ae0f0][from 1][idx 2012-05-02 02:12:15.634186 : kjbrcvdscn[no bscn1, wm 32768, RMno 0, reminc 18, dom 0] kjga st 0x4, step 0.0.0, cinc 20, rmno 6, flags 0x0 lb 0, hb 0, myb 15250, drmb 15250, apifrz 0 GCS CLIENT END 2012-05-02 02:12:15.635211 : kjbdowncvt[0x15c91.1 76896.0][1][options x0] 2012-05-02 02:12:15.635230 : GSIPC:AMBUF: rcv buff 0x7f16e1c56420, pool rcvbuf, rqlen 1103 2012-05-02 02:12:15.635308 : GSIPC:GPBMSG: new bmsg 0x7f16e1c56490 mb 0x7f16e1c56420 msg 0x7f16e1c564b0 mlen 152 dest x101 flushsz -1 2012-05-02 02:12:15.635334 : kjbmslset(0x15c91.1)) seq 0x4 reqid=0x6 (shadow 0xb48bb330.xb)(rsn 2)(mas@1) 2012-05-02 02:12:15.635355 : GSIPC:SPBMSG: send bmsg 0x7f16e1c56490 blen 184 msg 0x7f16e1c564b0 mtype 33 attr|dest x30101 bsz|fsz x1ffff 2012-05-02 02:12:15.635377 : GSIPC:SNDQ: enq msg 0x7f16e1c56490, type 65521 seq 118669, inst 1, receiver 1, queued 1 *** 2012-05-02 02:12:15.635 kclccctx: cleanup copy 0x7f16e1d94798 2012-05-02 02:12:15.635479 : [kjmpmsgi:compl][type 36][msg 0x7f16e1598588][seq 177740.0][qtime 0][ptime 1257] 2012-05-02 02:12:15.635511 : GSIPC:BSEND: flushing sndq 0xb491dd28, id 1, dcx 0xbc516778, inst 1, rcvr 1 qlen 0 1 2012-05-02 02:12:15.635536 : GSIPC:BSEND: no batch1 msg 0x7f16e1c56490 type 65521 len 184 dest (1:1) 2012-05-02 02:12:15.635557 : kjbsentscn[0x0.1ae0f1][to 1] 2012-05-02 02:12:15.635578 : GSIPC:SENDM: send msg 0x7f16e1c56490 dest x10001 seq 118669 type 65521 tkts x10002 mlen xb800e8 WAIT #0: nam='gcs remote message' ela= 180 waittime=1 poll=0 event=0 obj#=0 tim=1335939135635819 2012-05-02 02:12:15.635853 : GSIPC:RCVD: ksxp msg 0x7f16e167e0b0 sndr 1 seq 0.177741 type 32 tkts 0 2012-05-02 02:12:15.635875 : GSIPC:RCVD: watq msg 0x7f16e167e0b0 sndr 1, seq 177741, type 32, tkts 0 2012-05-02 02:12:15.636012 : GSIPC:TKT: collect msg 0x7f16e167e0b0 from 1 for rcvr -1, tickets 0 2012-05-02 02:12:15.636040 : kjbrcvdscn[0x0.1ae0f1][from 1][idx 2012-05-02 02:12:15.636060 : kjbrcvdscn[no bscn <= rscn 0x0.1ae0f1][from 1] 2012-05-02 02:12:15.636082 : GSIPC:TKT: dest (1:1) rtkt not acked 1  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:12:15.636102 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:12:15.636125 : [kjmxmpm][type 32][seq 0.177741][msg 0x7f16e167e0b0][from 1] 2012-05-02 02:12:15.636146 : kjbmpocr(0xb0.6)seq 0x1,reqid=0x23a,(client 0x9fff7b58,0x1)(from 1)(lseq xdf0) 2????LMS????????? ??gcs remote message GSIPC ????SCN=[0x0.1ae0f0] block=1/89233???,??BAST kjbmpbast(0x15c91.1),?? block=1/89233??????? ??fairness??(?11.2.0.3???_fairness_threshold=2),?current block?KCL: F156: fairness downconvert,?Xcurrent DownConvert? Scurrent: Instance 2: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 2 0 3 1756658 ??Instance 2 LMS ?cr block??? kjbmslset(0x15c91.1)) ????SEND QUEUE GSIPC:SNDQ: enq msg 0x7f16e1c56490? ???????Instance 1???? block: (1/89233)??? ??????: Instance 2: SQL> select CURRENT_RESULTS,LIGHT_WORKS from v$cr_block_server; CURRENT_RESULTS LIGHT_WORKS --------------- ----------- 29273 437 Instance 1 session A: SQL> SQL> select * from test; ID ---------- 2 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1761942 3 1761932 1 0 3 1761520 Instance 2: SQL> select CURRENT_RESULTS,LIGHT_WORKS from v$cr_block_server; CURRENT_RESULTS LIGHT_WORKS --------------- ----------- 29274 437 select * from test END OF STMT PARSE #140336529675592:c=0,e=337,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939668940051 EXEC #140336529675592:c=0,e=96,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939668940204 WAIT #140336529675592: nam='SQL*Net message to client' ela= 5 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335939668940348 *** 2012-05-02 02:21:08.940 kclscrs: req=0 block=1/89233 2012-05-02 02:21:08.940676 : kjbcro[0x15c91.1 76896.0][5] *** 2012-05-02 02:21:08.940 kclscrs: req=0 typ=nowait-abort *** 2012-05-02 02:21:08.940 kclscrs: bid=1:3:1:0:f:21:0:0:10:0:0:0:1:2:4:1:20:0:0:0:c3:49:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:1f:0:4d:26:a3:52:0:0:0:0:c7:c:ca:62:c3:49:0:0:0:0:1:0:17:8e:47:76:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:99:ed:0:0:0:0:0:0:10:0:0:0 2012-05-02 02:21:08.940799 : kjbcro[0x15c91.1 76896.0][5] 2012-05-02 02:21:08.940833 : GSIPC:GMBQ: buff 0xba0ee018, queue 0xbb79a7b8, pool 0x60013fa0, freeq 0, nxt 0xbb79a7b8, prv 0xbb79a7b8 2012-05-02 02:21:08.940859 : kjbsentscn[0x0.1ae28c][to 2] 2012-05-02 02:21:08.940870 : GSIPC:SENDM: send msg 0xba0ee088 dest x20001 seq 177810 type 36 tkts xff0000 mlen x1680198 2012-05-02 02:21:08.940976 : kjbmscr(0x15c91.1)reqid=0xa(req 0xa4ff30f8)(rinst 1)hldr 2(infosz 200)(lseq x2b8) 2012-05-02 02:21:08.941314 : GSIPC:KSXPCB: msg 0xba0ee088 status 30, type 36, dest 2, rcvr 1 *** 2012-05-02 02:21:08.941 kclwcrs: wait=0 tm=707 *** 2012-05-02 02:21:08.941 kclwcrs: got 1 blocks from ksxprcv 2012-05-02 02:21:08.941818 : kjbassume[0x15c91.1][sender 2][mymode x1][myrole x0][srole x0][flgs x0][spiscn 0x0.0][swscn 0x0.0] 2012-05-02 02:21:08.941852 : kjbrcvdscn[0x0.1ae28d][from 2][idx 2012-05-02 02:21:08.941871 : kjbrcvdscn[no bscn ??????????????SCN=[0x0.1ae28c]=1761932 Version?CR block, ????receive????Xcurrent Block??SCN=1ae28d=1761933,Instance 1???Xcurrent Block???build????????SCN=1761932?CR BLOCK, ????????Current block,?????????'gc current block 2-way'? ?????????????request current block,?????kjbcro;?????Instance 2?LMS???????Current Block: Instance 2 LMS trace: 2012-05-02 02:21:08.448743 : GSIPC:RCVD: ksxp msg 0x7f16e14a4398 sndr 1 seq 0.177810 type 36 tkts 0 2012-05-02 02:21:08.448778 : GSIPC:RCVD: watq msg 0x7f16e14a4398 sndr 1, seq 177810, type 36, tkts 0 2012-05-02 02:21:08.448798 : GSIPC:TKT: collect msg 0x7f16e14a4398 from 1 for rcvr -1, tickets 0 2012-05-02 02:21:08.448816 : kjbrcvdscn[0x0.1ae28c][from 1][idx 2012-05-02 02:21:08.448834 : kjbrcvdscn[no bscn <= rscn 0x0.1ae28c][from 1] 2012-05-02 02:21:08.448857 : GSIPC:TKT: dest (1:1) rtkt not acked 2  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:21:08.448875 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:21:08.448970 : [kjmxmpm][type 36][seq 0.177810][msg 0x7f16e14a4398][from 1] 2012-05-02 02:21:08.448993 : kjbmpbast(0x15c91.1) reqid=0x6 (req 0xa4ff30f8)(reqinst 1)(reqid 10)(flags x0) *** 2012-05-02 02:21:08.449 kclcrrf: req=48054 block=1/89233 *** 2012-05-02 02:21:08.449 kcl_compress_block: compressed: 6 free space: 7680 2012-05-02 02:21:08.449085 : kjbsentscn[0x0.1ae28d][to 1] 2012-05-02 02:21:08.449142 : kjbdeliver[to 1][0xa4ff30f8][10][current 1] 2012-05-02 02:21:08.449164 : kjbmssch(reqlock 0xa4ff30f8,10)(to 1)(bsz 344) 2012-05-02 02:21:08.449183 : GSIPC:AMBUF: rcv buff 0x7f16e18bcec8, pool rcvbuf, rqlen 1102 *** 2012-05-02 02:21:08.449 kclccctx: cleanup copy 0x7f16e1d94838 *** 2012-05-02 02:21:08.449 kcltouched: touch seconds 3271 *** 2012-05-02 02:21:08.449 kclgrantlk: req=48054 2012-05-02 02:21:08.449347 : [kjmpmsgi:compl][type 36][msg 0x7f16e14a4398][seq 177810.0][qtime 0][ptime 1119] WAIT #0: nam='gcs remote message' ela= 568 waittime=1 poll=0 event=0 obj#=0 tim=1335939668449962 2012-05-02 02:21:08.450001 : GSIPC:RCVD: ksxp msg 0x7f16e1bb22a0 sndr 1 seq 0.177811 type 32 tkts 0 2012-05-02 02:21:08.450024 : GSIPC:RCVD: watq msg 0x7f16e1bb22a0 sndr 1, seq 177811, type 32, tkts 0 2012-05-02 02:21:08.450043 : GSIPC:TKT: collect msg 0x7f16e1bb22a0 from 1 for rcvr -1, tickets 0 2012-05-02 02:21:08.450060 : kjbrcvdscn[0x0.1ae28e][from 1][idx 2012-05-02 02:21:08.450078 : kjbrcvdscn[no bscn <= rscn 0x0.1ae28e][from 1] 2012-05-02 02:21:08.450097 : GSIPC:TKT: dest (1:1) rtkt not acked 3  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:21:08.450116 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:21:08.450136 : [kjmxmpm][type 32][seq 0.177811][msg 0x7f16e1bb22a0][from 1] 2012-05-02 02:21:08.450155 : kjbmpocr(0xb0.6)seq 0x1,reqid=0x23e,(client 0x9fff7b58,0x1)(from 1)(lseq xdf4) ???Instance 2??LMS???,???build cr block,??????Instance 1?????Current Block??????Instance 2??v$cr_block_server??????LIGHT_WORKS?????current block transfer??????,??????? CR server? Light Work Rule(Light Work Rule?8i Cr Server?????????,?Remote LMS?? build CR????????,resource holder?LMS???????block,????CR build If creating the consistent read version block involves too much work (such as reading blocks from disk), then the holder sends the block to the requestor, and the requestor completes the CR fabrication. The holder maintains a fairness counter of CR requests. After the fairness threshold is reached, the holder downgrades it to lock mode.)? ??????? CR Request ????Current Block?? ???:??????class?block,CR server??????? ??undo block?? undo header block?CR quest, LMS????Current Block, ????? ???? ??????? block cleanout? CR  Version??????? ???????? data blocks, ??????? CR quest  & CR received?(???????Light Work Rule,LMS"??"), ??Current Block??DownConvert???S lock,??LMS???????ship??current version?block? ??????? , ?????? ,???????DownConvert?????”_fairness_threshold“???200,????Xcurrent Block?????Scurrent, ????LMS?????Current Version?Data Block: SQL> show parameter fair NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ _fairness_threshold integer 200 Instance 1: SQL> update test set id=id+1 where id=4; 1 row updated. Instance 2: SQL> update test set id=id+1 where id=2; 1 row updated. SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1838166 ?Instance 1? ????,? ??instance 2? v$cr_block_server?? instance 1 SQL> select * from test; ID ---------- 10 3 instance 2: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1883707 8 0 SQL> select * from test; ID ---------- 10 3 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1883707 8 0 ................... SQL> / STATE CR_SCN_BAS ---------- ---------- 2 0 3 1883707 3 1883695 repeat cr request on Instance 1 SQL> / STATE CR_SCN_BAS ---------- ---------- 8 0 3 1883707 3 1883695 ??????_fairness_threshold????????,?????200 ????????CR serve??Downgrade?lock, ????data block? CR Request????Receive? Current Block?

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• mount network drive

  - by CaptnLenz

  since i updated my ubuntu to natty narwhal(from 10.04), my mount script doesn't work anymore. The scripts mounts a folder from a NAS (WD mybookworld) in the local network to a folder in my home folder. script looked like that: #!/bin/bash sudo mount //192.168.2.222/Public/Shared\ Music/ /home/simon/Musik/ error: mount: wrong fs type, bad option, bad superblock on //192.168.2.222/Public/Shared Music/, missing codepage or helper program, or other error (for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program) Manchmal liefert das Syslog wertvolle Informationen – versuchen Sie dmesg | tail oder so now, because the script doesn't work anymore i decided to add the mount-process to my fstab, because the network drive should be mounted on every startup. My fstab entry looks like this: //192.168.2.222/Public/Shared\ Music/ /home/simon/Musik cifs credentials=/home/simon/.smbcredentials 0 0 But it doesn't work, too. I get a message during the startup process, that Musik couldn't be mounted. Are there any log files i can check for errors? The system is a fresh installed 11.04. Greetings

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• Designing a social network with CQRS, graph databases and relational databases in mind

  - by Siraj Mansour

  I have done quite an amount of research on the topic so far, but i couldn't come up with a conclusion to make up my mind. I am designing a social network and during my research i stumbled upon graph databases, i found neo4j pretty interesting for user relations and traversing through nodes. I also thought of using a relational database such as MS-SQL or MySQL to store entity data only and depending on neo4j for connections between entities. Of course this means more work in my application to store and pull data in and out of 2 different sources. My first question : Is using this approach (graph + relational) a good approach for designing my social network keeping in mind that users on social networks don't have to in synch with real data by split second ? What are the positives and negatives of this approach ? My Second question : I've been doing some reading on CQRS and as i understood it is mostly useful for collaborative environments, and environments where users see a lot of "stale" data. social networks has shared comments, events, etc .. and many users query or update the same data. Could CQRS be a helpful approach ? Would it give any performance/scalability benefits or non-useful complexity ? Is it fairly applicable with my possible choice of (graph + relational) databases approach mentioned in the question above ? My purpose is to know if the approaches i have mentioned above seem good enough for the business context.

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• Layer 2 topology discovery

  - by pegah s

  I have been given a network (it is a LAN) comprised of switches and I need to discover the topology of that. (There may be Link Aggregation Groups (LAGs) in the network as well.) I have done a lot of search on layer 2 topology discovery and I have seen many articles talking about using SNMP MIBs or LLDP (I do not know which one is better or more practical, but all devices in my network support SNMP). But my problem is that I cannot find "the software to install and run" to actually see the topology map. I would really appreciate if someone could send me the website where I can download the code and use it. I have also found a lot of tools available online such as OpenNMS, Nagios, The Dude, LANsurveyor, SNMPwalk, and many more... But I cannot figure out which one is the best to pick. To summarize: what is the easiest simplest way to discover the layer 2 network topology?

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• Windows 7 "Backup completed but some files were skipped"

  - by Andrew Coleson

  I set up Windows 7 Pro to backup my files to a network path (woohoo!) and chose to backup "data for newly created users, libraries", and my user folder (no system image). All went fine (although the first backup took ~12 hours for some ridiculous reason), but at the end it gave me a message that "Your backup completed, but some files were skipped. Click to see which files." I checked and the "files" skipped were my 3 network-mapped drives, which is perfectly fine and reasonable behavior (I certainly don't need it to back up my network-mapped drives as part of my local PC backup), but in the Backup and Restore center it warns me that my Last backup was "Never" and the Action Center now has a permanent "Check your backup results" issue. Is there any way to set up the backup to exclude the network-mapped drives or tell it that I really don't mind that it skipped drives I never asked it to back up?

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• Hardening network with sysctl settings made Wi-fi downloading speed extremely slow

  - by Rohit Bansal

  I just followed up following steps to harden network security The /etc/sysctl.conf file contain all the sysctl settings. Prevent source routing of incoming packets and log malformed IP's enter the following in a terminal window: sudo vi /etc/sysctl.conf Edit the `/etc/sysctl.conf` file and un-comment or add the following lines : # IP Spoofing protection net.ipv4.conf.all.rp_filter = 1 net.ipv4.conf.default.rp_filter = 1 # Ignore ICMP broadcast requests net.ipv4.icmp_echo_ignore_broadcasts = 1 # Disable source packet routing net.ipv4.conf.all.accept_source_route = 0 net.ipv6.conf.all.accept_source_route = 0 net.ipv4.conf.default.accept_source_route = 0 net.ipv6.conf.default.accept_source_route = 0 # Ignore send redirects net.ipv4.conf.all.send_redirects = 0 net.ipv4.conf.default.send_redirects = 0 # Block SYN attacks net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_max_syn_backlog = 2048 net.ipv4.tcp_synack_retries = 2 net.ipv4.tcp_syn_retries = 5 # Log Martians net.ipv4.conf.all.log_martians = 1 net.ipv4.icmp_ignore_bogus_error_responses = 1 # Ignore ICMP redirects net.ipv4.conf.all.accept_redirects = 0 net.ipv6.conf.all.accept_redirects = 0 net.ipv4.conf.default.accept_redirects = 0 net.ipv6.conf.default.accept_redirects = 0 # Ignore Directed pings net.ipv4.icmp_echo_ignore_all = 1 To reload sysctl with the latest changes, enter: sudo sysctl -p But, after applying the changes I found "Wi-fi" downloading speed and terminal downloading speed extremely slow (less than 1KB/s) however surfing speed through browser was good. But, using direct ethernet cable was giving a good speed. Then, I reverted back the above changes and things fall back in line once again.... Could you please let me know what possibly in above script is affecting such behaviour [and why] ? How could I still maintain hardening of network security without disturbing Wi-fi downloading speed ?

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• Torque jobs does not enter "E" state (unless "qrun")

  - by Vi.

  Jobs I add to the queue stays there in "Queued" state without attempts to be executed (unless I manually qrun them) /var/spool/torque/server_logs say just 04/11/2011 12:43:27;0100;PBS_Server;Job;16.localhost;enqueuing into batch, state 1 hop 1 04/11/2011 12:43:27;0008;PBS_Server;Job;16.localhost;Job Queued at request of test@localhost, owner = test@localhost, job name = Qqq, queue = batch The job requires just 1 CPU on 1 node. # qmgr -c "list queue batch" Queue batch queue_type = Execution total_jobs = 0 state_count = Transit:0 Queued:0 Held:0 Waiting:0 Running:0 Exiting:0 max_running = 3 acl_host_enable = True acl_hosts = localhost resources_min.ncpus = 1 resources_min.nodect = 1 resources_default.ncpus = 1 resources_default.nodes = 1 resources_default.walltime = 00:00:10 mtime = Mon Apr 11 12:07:10 2011 resources_assigned.ncpus = 0 resources_assigned.nodect = 0 kill_delay = 3 enabled = True started = True I can't set resources_assigned to nonzero because of Cannot set attribute, read only or insufficient permission resources_assigned.ncpus. When I qrun some task, this goes to mom's log: 04/11/2011 21:27:48;0001; pbs_mom;Svr;pbs_mom;LOG_DEBUG::mom_checkpoint_job_has_checkpoint, FALSE 04/11/2011 21:27:48;0001; pbs_mom;Job;TMomFinalizeJob3;job 18.localhost started, pid = 28592 04/11/2011 21:27:48;0080; pbs_mom;Job;18.localhost;scan_for_terminated: job 18.localhost task 1 terminated, sid=28592 04/11/2011 21:27:48;0008; pbs_mom;Job;18.localhost;job was terminated 04/11/2011 21:27:48;0080; pbs_mom;Svr;preobit_reply;top of preobit_reply 04/11/2011 21:27:48;0080; pbs_mom;Svr;preobit_reply;DIS_reply_read/decode_DIS_replySvr worked, top of while loop 04/11/2011 21:27:48;0080; pbs_mom;Svr;preobit_reply;in while loop, no error from job stat 04/11/2011 21:27:48;0080; pbs_mom;Job;18.localhost;obit sent to server Scheduler log (/var/spool/torque/sched_logs/20110705): 07/05/2011 21:44:53;0002; pbs_sched;Svr;Log;Log opened 07/05/2011 21:44:53;0002; pbs_sched;Svr;TokenAct;Account file /var/spool/torque/sched_priv/accounting/20110705 opened 07/05/2011 21:44:53;0002; pbs_sched;Svr;main;/usr/sbin/pbs_sched startup pid 16234 qstat -f: Job Id: 26.localhost Job_Name = qwe Job_Owner = test@localhost job_state = Q queue = batch server = localhost Checkpoint = u ctime = Tue Jul 5 21:43:31 2011 Error_Path = localhost:/home/test/jscfi/default/0.738784810485275/qwe.e26 Hold_Types = n Join_Path = n Keep_Files = n Mail_Points = a mtime = Tue Jul 5 21:43:31 2011 Output_Path = localhost:/home/test/jscfi/default/0.738784810485275/qwe.o26 Priority = 0 qtime = Tue Jul 5 21:43:31 2011 Rerunable = True Resource_List.ncpus = 1 Resource_List.neednodes = 1:ppn=1 Resource_List.nodect = 1 Resource_List.nodes = 1:ppn=1 Resource_List.walltime = 00:01:00 substate = 10 Variable_List = PBS_O_HOME=/home/test,PBS_O_LANG=en_US.UTF-8, PBS_O_LOGNAME=test, PBS_O_PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games, PBS_O_MAIL=/var/mail/test,PBS_O_SHELL=/bin/sh,PBS_SERVER=127.0.0.1, PBS_O_WORKDIR=/home/test/jscfi/default/0.738784810485275, PBS_O_QUEUE=batch,PBS_O_HOST=localhost euser = test egroup = test queue_rank = 1 queue_type = E etime = Tue Jul 5 21:43:31 2011 submit_args = run.pbs Walltime.Remaining = 6 fault_tolerant = False How to make it execute jobs automatically, without manual qrun?

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• I can't get router and switches configured properly for my home office network

  - by BernicusMaximus

  Networking Gurus, I recently built a new detached garage, with an office above. As such I had it tied into my existing home ethernet wiring. The ethernet signal is coming into the garage just fine, but I can not get my network configured the way I want because of problems trying to link the various router/switch devices. Please see the following links for the network diagrams: Home Network So basically, I can't my future state to work. I'm not sure if I'm using incompatible switches or what, but I tried the future state with some 4 port switches from best buy and had no luck. I resorted to setting up the Current State so I could operate. What I am looking for is help on how best to get my future state to work. Is this possible with my current configuration, and if not, what should I do? Any help is appreciated. Thanks, Bernie

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