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• Virtual Machines Renaming/Backing up/Sharing

  - by evan

  I've started using VMware virtual machines for all of my software development projects and have a few questions for others doing the same thing. First, how can you rename the virtual machine and the name of the virtual hard drive? I have a base development machine that I clone for different projects. I'd like to name the machine and it's hard drive according the the project (right now when I copy them via cut and paste, the file names remain the same and I can only organize them by putting them in a specific directory). Second, what is the best way to back up a virtual machine? Is it possible (by breaking the virtual hard drive up into chunks instead of one big file) to get incremental backups working? It seems time machine always tries to make a copy of the whole thing which is time consuming because each virtual machine is around 30GB. Finally, how slow would it be to have a virtual machine shared on an NFS mount on a wireless N network and used from multiple computers (but with only one person using it at a time.) Would it be more reasonable on a gigabit lan connection? Thanks for your input! And please feel free to share any advice or wisdom about using virtual machines for software development and the best ways to speed them up!

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• HP ProCurve & Cisco switches interoperability

  - by Kamil Z

  I have a couple of questions regarding Cisco and HP ProCurve interoperability. Here's a link to pdf with my network topology. Can someone help me with basic VLAN configuration in such topology? Below there are some details of my configuration: # m_management_2 interface FastEthernet0/43 switchport access vlan 250 switchport mode access spanning-tree port-priority 32 spanning-tree cost 100 # MTA2-swmgmt1 vlan 1 name "DEFAULT_VLAN" untagged 1-48 ip address 10.10.249.190 255.255.255.128 exit # MTA2-swtr1 vlan 1 name "DEFAULT_VLAN" untagged 1-14,16-48 no ip address no untagged 15 exit vlan 100 name "MTA Mgmt" untagged 15 ip address 10.10.249.188 255.255.255.128 exit # MTA2-swtr2 vlan 1 name "DEFAULT_VLAN" untagged 1-14,16-48 no ip address no untagged 15 exit vlan 100 name "MTA Mgmt" untagged 15 ip address 10.10.249.189 255.255.255.128 exit I don't post MTA2-bcsw[12] configuration, because I wasn's successfull in this one yet. Every time I configure VLANs on MTA2-bcsw[12] Fa0/24 interface on m_management_2 goes down bacause of receiving tagged BPDUs on access port (there are no VLANs configured on MTA2-swmgmt1 because of fact that only 250 VLAN is allowed in this switch. Is it correct?). Can someone provide me some basic configuration for this topology? Second thing I want to ask is concept of connection from MTA2-swmgmt1 to MTA2-swtr[12] HP switches for the sake of management. How to configure such ports on HP switches (managed switch and manager switch). Is my actual configuration correct?

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• IPv6: Can't ping anything - "Operation not permitted"

  - by Matthew Iselin

  I've been working on getting IPv6 support into my network, and had everything working properly for a short while. The server is running Ubuntu Server 8.10. Now however whenever I attempt to do anything related to IPv6 on the server, I get "Operation not permitted". This is coming from things like wide-dhcpv6-client (when trying to get an IPv6 address from the ISP) and radvd - both log errors of this type into syslog. Even pinging the loopback interface fails: xxx@gordon:~$ ping6 ::1 PING ::1(::1) 56 data bytes ping: sendmsg: Operation not permitted ping: sendmsg: Operation not permitted ping: sendmsg: Operation not permitted ^C --- ::1 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2014ms xxx@gordon:~$ sudo ping6 ::1 sudo: unable to resolve host gordon PING ::1(::1) 56 data bytes ping: sendmsg: Operation not permitted ping: sendmsg: Operation not permitted ping: sendmsg: Operation not permitted ^C --- ::1 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2014ms As you can see, I have attempted pinging as root, as most of the material I've found on the internet points to a permission problem. However, that has not helped. Any hints to getting unstuck would be appreciated.

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• Windows 7 BSOD with Service Exception Error and Randomly Reboots

  - by Jason Shultz

  I've got a windows 7 laptop that BSOD with a Service Exception Error when I connect to a wireless network. It also does it when it's just sitting still doing nothing. I ran bluescreenview and here are the last four BSOD's from today: ================================================== Dump File : 051210-18642-01.dmp Crash Time : 5/12/2010 8:36:14 AM Bug Check String : SYSTEM_SERVICE_EXCEPTION Bug Check Code : 0x0000003b Parameter 1 : 00000000`c000001d Parameter 2 : fffff880`00000000 Parameter 3 : fffff880`06fda160 Parameter 4 : 00000000`00000000 Caused By Driver : Ntfs.sys Caused By Address : Ntfs.sys+7f030 File Description : Product Name : Company : File Version : Processor : x64 Computer Name : Full Path : C:\Windows\Minidump\051210-18642-01.dmp Processors Count : 2 Major Version : 15 Minor Version : 7600 ================================================== ================================================== Dump File : 051210-16551-01.dmp Crash Time : 5/12/2010 8:41:04 AM Bug Check String : SYSTEM_SERVICE_EXCEPTION Bug Check Code : 0x0000003b Parameter 1 : 00000000`c000001d Parameter 2 : fffff880`00000000 Parameter 3 : fffff880`06f40160 Parameter 4 : 00000000`00000000 Caused By Driver : ntoskrnl.exe Caused By Address : ntoskrnl.exe+70600 File Description : NT Kernel & System Product Name : Microsoft® Windows® Operating System Company : Microsoft Corporation File Version : 6.1.7600.16539 (win7_gdr.100226-1909) Processor : x64 Computer Name : Full Path : C:\Windows\Minidump\051210-16551-01.dmp Processors Count : 2 Major Version : 15 Minor Version : 7600 ================================================== ================================================== Dump File : 051210-17269-01.dmp Crash Time : 5/12/2010 8:45:51 AM Bug Check String : SYSTEM_SERVICE_EXCEPTION Bug Check Code : 0x0000003b Parameter 1 : 00000000`c000001d Parameter 2 : fffff880`00000000 Parameter 3 : fffff880`07db1160 Parameter 4 : 00000000`00000000 Caused By Driver : Ntfs.sys Caused By Address : Ntfs.sys+7f030 File Description : Product Name : Company : File Version : Processor : x64 Computer Name : Full Path : C:\Windows\Minidump\051210-17269-01.dmp Processors Count : 2 Major Version : 15 Minor Version : 7600 ================================================== ================================================== Dump File : 051210-19453-01.dmp Crash Time : 5/12/2010 5:46:25 PM Bug Check String : SYSTEM_SERVICE_EXCEPTION Bug Check Code : 0x0000003b Parameter 1 : 00000000`c000001d Parameter 2 : fffff880`00000000 Parameter 3 : fffff880`02625160 Parameter 4 : 00000000`00000000 Caused By Driver : win32k.sys Caused By Address : win32k.sys+2d4201 File Description : Product Name : Company : File Version : Processor : x64 Computer Name : Full Path : C:\Windows\Minidump\051210-19453-01.dmp Processors Count : 2 Major Version : 15 Minor Version : 7600 ==================================================  

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• SCCM 2012 - some remote clients unable to download some applications, 401.2 error

  - by growse

  I've got a small SCCM 2012 deployment with about 35 clients attached. Most of these clients are in the same network as the single SCCM host, but three are about 1000 miles away. Oddly, these three clients have stopped being able to download some application packages over BITS. Publishing a new package works for all the other clients, but for these three it never seems to download. If I go to the software centre, it just hangs at "0% downloaded". On the client, the DataTransfer.log says (repeatedly): CDTSJob::HandleErrors: DTS Job '{2DCBBB4C-6D84-479A-9218-885B72C834B9}' BITS Job '{E78147DD-4A26-4942-B4FD-6EC3EB77EECD}' under user 'S-1-5-18' OldErrorCount 442 NewErrorCount 443 ErrorCode 0x80072EE2 DataTransferService 30/07/2012 09:27:41 2964 (0x0B94) CDTSJob::HandleErrors: DTS Job ID='{2DCBBB4C-6D84-479A-9218-885B72C834B9}' URL='http://sccm-host:80/SMS_DP_SMSPKG$/Content_3e7f6982-6346-4f27-ae00-ad5dcb391455.1' ProtType=1 DataTransferService 30/07/2012 09:27:41 2964 (0x0B94) Cas.log says (repeatedly): Location update from CTM for content Content_3e7f6982-6346-4f27-ae00-ad5dcb391455.1 and request {AD041FCB-03D2-4FE6-A6FA-38A6B80FB2A1} ContentAccess 30/07/2012 08:33:39 5048 (0x13B8) Download location found 0 - http://lonsbrndsccm02.mcs.int.thomsonreuters.com/SMS_DP_SMSPKG$/Content_3e7f6982-6346-4f27-ae00-ad5dcb391455.1 ContentAccess 30/07/2012 08:33:39 5048 (0x13B8) Download request only, ignoring location update ContentAccess 30/07/2012 08:33:39 5048 (0x13B8) On the server, I've enabled failed request log tracing. The raw IIS log says the following: 2012-07-30 08:28:42 10.13.111.35 GET /SMS_DP_SMSPKG$/Content_3e7f6982-6346-4f27-ae00-ad5dcb391455.1/sccm /NSCP-0.4.0.172-x64.msi 80 - 10.2.27.19 Microsoft+BITS/7.5 401 2 5 293 Which is a 401.2 error, meaning access denied. The failed request log is large, but the punchline is that it chucks out a Unauthorized: Access is denied due to invalid credentials. message. All clients are members of the same domain and appear to be (otherwise) working great. I've re-installed the SCCM client, deleted and re-added the computer to SCCM. Some other packages seem to work fine, the daily anti-malware delta gets downloaded and patched without issue. Why are these packages failing?

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• Force Windows Local Subnet Traffic through a Gateway

  - by Beerey

  Hi all, We are attempting to route all traffic from a certain machine to a gateway. This works ok for traffic destined for subnets outside of the machine's subnet. However, traffic to machines in the same subnet as the source machine goes through an On-Link gateway in Windows. This means that the default gateway is ignored, and traffic in a subnet (for example, 192.168.50.10 - 192.168.50.11) flows. Destination Netmask Gateway Interface Metric 192.168.50.0 255.255.255.0 On-link 192.168.50.214 276 This route can be deleted from Windows, but when the machine is rebooted it always comes back. Adding a persistant static route to the gateway with a lower metric doesn't work, since it will still try the On-Link gateway after the persistant route fails. Adding each machine in a VLAN isn't an option due to the setup we have Adding a startup script to delete the gateway isn't a great option either, since users will have full admin access to the machine and might disable the script. We cannot transperantly intercept all network traffic on the subnet using Gratuitous ARPs or transparent proxying, since there are other machines on the subnet which use a different gateway The only way we have gotten it to work is by adding a persistant route to the gateway for the subnet traffic, and deleting the On-link route on reboot. The question is then. Is there a way to permanently remove this On-link route If not, is there a way to otherwise force even local subnet traffic to go through a gateway?

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• Can not join additional domain controllers

  - by Hosm

  Hi all, I had a dead PDC and another not so synced domain controller for my domain. using comments here link now the so called secondary domain controller has seized domain controls and I can verify it from dsa.msc that it is a domain controller. I set up another domain controller (win2003SRV) and about to promote an AD on it as a domain controller for my domain. When I try to join the new domain controller to the domain I face DNS problem. here is some more detail DNS was successfully queried for the service location (SRV) resource record used to locate a domain controller for domain DOMNAME.A.B: The query was for the SRV record for _ldap._tcp.dc._msdcs.DOMNAME.A.B The following domain controllers were identified by the query: update.DOMNAME.A.B Common causes of this error include: - Host (A) records that map the name of the domain controller to its IP addresses are missing or contain incorrect addresses. - Domain controllers registered in DNS are not connected to the network or are not running. For information about correcting this problem, click Help. it is worth noting that update.DOMNAME.A.B is the current domain controller to which I'd like to add another controller named PDC.DOMNAME.A.B Ip address of update.DOMNAME.A.B is 192.168.200.1 and for pdc.DOMNAME.A.B is 192.168.200.100 querying DNS on both machine return correct results. Any idea?

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• Vmware Player 3.0 - cannot ping 32 bits guest from 64 bits (guest or host)

  - by npmj

  I'm stuck with what seems a bug in VmWare Player (build 203739). I'm using W7 Ultimate 64bits as host and have a CentOS 5.4 (64 bits) as a guest and a Windows XP Professional SP3 (32 bits) as another guest. From the 64 bits machines (the host and the linux guest) I cannot ping the windows XP. Off course, I already turned off the windows firewall in the guest and also in the host. The network is pretty basic, I'm using Vmnet8 (NAT), with DHCP and port forwarding (to the windows XP's IP). Everything is working ok, I have internet access from host and from both guests. Port forwarding to the XP guest is working ok too. The only problem is that I cannot access the XP guest through the Vmnet8. I monitored the traffic using wireshark (in the host and in the windows guest). If I try to ping the XP guest from the host, what I see is the ARP request leaving the host, being answered by the guest and, after that, there is no echo request leaving the host. The same occurs if I try to ping the XP from the CentOs guest. From the windows XP guest I can ping both the host and the CentOs guest. From the XP guest I can access the host shares. Obviously, from the host I cannot see the XP shares (as I cannot even ping the guest). I want to maintain this setup (using NAT to share the host's internet connection). Any suggestions?

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• Outbound HTTP performance tuning recommendations

  - by Richard Gadsden

  I'll detail my exact setup below, but general recommendations for a better web-browsing experience will be useful. A nice checklist of things to try would be great! I have 600 users on a single site with an 8MB leased line. I get a lot of moans about the performance of "the internet" (ie web-browsing). What recommendations do the community have for speeding things up without just throwing more bandwidth at it? I expect I will end up buying some more, but good management tips are always valuable. My setup is this: Cisco PIX (515E) firewall on the edge of the network. It's just doing some basic NAT, and opening up a handful of ports to various bastion hosts (aka DMZ servers). The DMZ is just a switch that the servers are plugged into. ISA 2006 Enterprise array (two servers) connecting DMZ to the internal LAN, with WebSense Web Security filtering HTTP traffic so users can't look at porn or waste bandwidth on YouTube during working hours. I've done a few things - I've just switched my internal DNS over to use root hints, which halved DNS query latency from 500ms to 250ms. Well worth doing. I'm trying to cache more aggressively, but so much more of the internet is AJAXy and doesn't cache very well as compared to five years ago. Plus the 70GB of cache which felt like a lot a few years ago really isn't any more. I'm getting about 45% cache hits by number of requests, but only about 22% by size, ie larger objects are less likely to be cached. Latency seems to be part of the problem. Is that attributable to the bandwidth problem, or are there things I can look at to try to reduce latency even on heavily-loaded bandwidth?

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• SqlCmd : Login timeout expired from localhost

  - by mschr

  I've setup the instance SQLEXPRESS via SQL Server 2008 R2 installation, added a security login with all server roles, one called 'sqluser'. The server authentication is SQL Server and Windows Authentication mode. However, when i specify the -S property, login fails. There is no firewall enabled and SQL server even accepts connections from remote hosts. C:\Users\user>sqlcmd -U sqluser -P qwerty -Q "Select * FROM testdb.dbo.testtable" Output: integer ------- 1 2 3 4 (4 rows affected) However when specifying 'localhost' the query fails... Question is Why? C:\Users\user>sqlcmd -S localhost/sqlexpress -U cpt -P 1234 -Q "Select * FROM cpt.dbo.testme" Output: HResult 0x43, Level 16, State 1 Named Pipes Provider: Could not open a connection to SQL Server [67]. Sqlcmd: Error: Microsoft SQL Server Native Client 10.0 : A network-related or in stance-specific error ..... Sqlcmd: Error: Microsoft SQL Server Native Client 10.0 : Login timeout expired. Changing 'localhost' with '%COMPUTERNAME' is same result if someone would be wondering. The server is running as a LocalSystem instance.

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• What's the risk of running a Domain Controller so that it is accessible from the internet?

  - by Adrian Grigore

  I have three remote dedicated web servers at different webhosts. Adding them to a common domain would make a lot of administration tasks much easier. Since two of the servers are running Windows 2008 R2 Standard, I thought about promoting them to Domain Controllers in order to set up the windows domain. There's another thread at Serverfault that recommends this. At the same time I've read a lot of times on different websites that this is not a good idea because an domain controller should always be behind a firewall LAN. But I can't set up something like this because I don't have a LAN with a static IP accessible from the internet. In fact I don't even have a windows server in my LAN. What I have not found out is why exposing a DC to the Internet would be bad idea. The only risk I can see is that if someone penetrates one of my webservers, it should be much easier to penetrate the others as well. But as far as I can see that's the worst case scenario since I am only going my web servers to that domain, not any computers from my local network. Is this the only downside or does it also make it easier to penetrate one of my web servers in the first place? Thanks, Adrian

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• Macbook Pro 2010 Ethernet Jumbo Frame(9k MTU) Support?

  - by Troggy

  Has anyone been able to use jumbo frame support on their 2010 Macbook Pros? This is kind of negative news here, but I am seeing many reports that this is not available anymore due to Apple's choice of network card in the new machines. I cannot set my MTU speed over 1500 on my new 2010 MBP i7, but my old early 2008 MBP (Core2) has the 9000 MTU setting for use. Everything I have is setup to use jumbo frames and I thought apple kept that feature in their "pro" lineup. It sounds like the Mac Pro still has it. Did they decide to use a chipset that doesn't support it? I am trying to pinpoint some solid chipset numbers and the feature support. Maybe they just need to update the drivers? Is there some more official information about this feature? This might seem minor, but this is really frustrating if apple removed this feature from their pro laptop line. From what I have read so far, it sounds like I am not alone in my frustrations with this. http://discussions.info.apple.com/message.jspa?messageID=12258067 http://discussions.apple.com/thread.jspa?messageID=12130158 Anyone have any experience or further knowledge about this issue ... beyond typing my question into google and giving the top 5 results as answers? :)

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• ISA Server 2006 SSL Certificate Dilemma

  - by JohnyD

  I'm making so great headway in offering our services over https with help from a Go Daddy certificate, later to be upgraded to Thawte SSL123 certs. But, I've just run into one whopper of a problem. Here's my setup: I run an ISA 2006 firewall. Our web services are distributed over 2 servers. One is Windows 2000 (www.domain.com) and the other is Windows 2003 (services.domain.com). So, I'll need to purchase 2 certs for both www and services, import them into IIS6 on their respective machines, then export them with the primary key (making sure to Include all certificates in the certification path if possible... that had me stumped for a while), and then to finally import them into ISA's local computer Personal store. The problem I've just run into is that I have separate firewall rules for services.domain.com and www.domain.com... because requests need to be forwarded to different web servers. Each of these firewall rules use the same httplistener. I have just found out that you can only use 1 certificate per httplistener. To make matters worse you can only have a single httplistener per ip / port. Is this correct? I can only use a single certificate for a single ip address? This would seem to be a severe limitation. Am I wrong? If I'm not then I've got a whole lot more work ahead of me as I'll have to set up extra ip's, add them to the firewall's network interface, create new listeners using that ip, etc... Can someone please confirm that I'm doing this correctly / incorrectly? Once I got my head wrapped around it all it seemed easy... then this. Thanks in advance.

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• MySQL socket connections working, but not port connections

  - by Neil

  I installed MySQL community 5.1.45 on my Snow Leopard 10.6, using the pkg from their site. I had previously installed a MySQL binary from entropy.ch. In the previous installation, the connections were working fine before I upgrade to Snow Leopard. In Snow Leopard, both the installations are problematic. Using an app called Sequel Pro, if I connect with the socket operation, it connects properly. However, a standard connection with the same credentials doesn't work. From what I've understood, socket connections happen on the machine itself between processes, whereas normal connections occur over the network/ports, in this case a loopback to my machine, since the server and client are both on the same machine. My new CakePHP installation isn't being able to connect to the db with the root credentials I provided. Btw, I've been starting the MySQL server using the Preference Pane. When I tried running mysqld from terminal, it gave me: 100323 1:54:37 [Warning] Can't create test file /usr/local/mysql-5.1.45-osx10.6-x86_64/data/mbp.lower-test 100323 1:54:37 [Warning] Can't create test file /usr/local/mysql-5.1.45-osx10.6-x86_64/data/mbp.lower-test mysqld: Can't change dir to '/usr/local/mysql-5.1.45-osx10.6-x86_64/data/' (Errcode: 13) 100323 1:54:37 [ERROR] Aborting 100323 1:54:37 [Note] mysqld: Shutdown complete mbp is the name of my machine. How do I fix this so that my webserver can connect to the mysql server?

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• VMWare Fusion: "No Permission to access this virtual machine"

  - by Craig Walker

  I had a VMWare Fusion VM backed up on my home network file server (Ubuntu). I wanted to run it again, so I copied it back to my Macbook. When I tried to launch it in VMWare, I got an error message: No permission to access this virtual machine. Configuration file: /Users/craig/WinXP Clean + Scanner.vmwarevm/WinXP Pro Test.vmx The permissions look fine to me: The bundle directory is 777 The bundle files (including the listed .vmx) are all 666 User is craig (my current user); group is staff. I changed the group to wheel at the suggestion of this page, but that didn't help. Finder shows read & write for craig, staff, and everyone on the bundle directory The bundle dir is also not locked Finder also shows rw and unlocked for the .vmx file The parent directory is also rw & unlocked Disk Utility permissions check doesn't show any problems with any of the associated files It sure looks like I should have wide open access to run this VM; why is Fusion complaining?

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• Get-ChildItem fails to connect in SQLSERVER drive

  - by Norman Kelm

  I'm having some trouble with the SQLSERVER PSDRIVE. See error below. I only have named instances on my PC, both 2005 and 2008 Added the SQL snapins. The PC is named YODA The SQL instance is SQL2008 Navigate to the Databases folder for YODA\SQL2008. You can see the path below. dir -name spits out a connection error trying to connect to YODASQL2008\DEFAULT when it should be trying to connect to YODA\SQL2008. Then it outputs the db name which is Twitter in this case. Is there something missing from my config? Output: PS SQLSERVER:\SQL\YODA\SQL2008\Databases dir -name Get-ChildItem : SQL Server PowerShell provider error: Could not connect to 'YODASQL2008\DEFAULT'. [Failed to connect to server YODASQL2008. -- A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)] At line:1 char:4 + dir <<<< -name + CategoryInfo : OpenError: (SQLSERVER:\SQL\...tabases\Twitter:SqlPath) [Get-ChildItem], GenericProviderException + FullyQualifiedErrorId : ConnectFailed,Microsoft.PowerShell.Commands.GetChildItemCommand Twitter Repeats with error for every database. Thanks, Norman

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• Cachefilesd (cachefiles) everything seems to be set up, still not working

  - by Evgenius

  I'm trying to set up cachefilesd to work with my network folder shared using NFS. I have seemingly everything set up, however cachefilesd starts normally, however caching isn't functioning. Here is output of commands, which I ran in the same order 1 sudo mount ... cache-1:/mnt/datashared on /mnt/nfsshare type nfs (rw,sync,ac,acregmin=3,acregmax=60,acdirmin=30,acdirmax=300,lookupcache=pos,vers=3,fsc) ... 2 lsbmod | grep cachefiles cachefiles 40555 1 fscache 57430 4 nfs,cifs,cachefiles,nfsv4 3 [edited - deleted] 4 uname -r 3.8.0-34-generic 5 grep CONFIG_NFS_FSCACHE /boot/config-3.8.0-34-generic CONFIG_NFS_FSCACHE=y 6 lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 13.04 Release: 13.04 Codename: raring 7 sudo service cachefilesd restart * Restarting FilesCache daemon cachefilesd [ OK ] 8 dmesg [6211206.141781] FS-Cache: Withdrawing cache "mycache" [6211210.135236] FS-Cache: Cache "mycache" added (type cachefiles) [6211210.135242] CacheFiles: File cache on sdb1 registered [6214644.348929] CacheFiles: File cache on sdb1 unregistering [6214644.348935] FS-Cache: Withdrawing cache "mycache" [6214654.575909] FS-Cache: Cache "mycache" added (type cachefiles) [6214654.575915] CacheFiles: File cache on sdb1 registered 9 ps aux | grep cachefilesd root 65399 0.0 0.0 4460 540 ? Ss 23:14 0:00 /sbin/cachefilesd 1000 65464 0.0 0.0 8160 916 pts/0 S+ 23:16 0:00 grep --color=auto cachefilesd finally, biggest problem is 10 cat /proc/fs/nfsfs/volumes NV SERVER PORT DEV FSID FSC v3 64476645 801 0:24 233e020f0da07a93 no tl;dr I think I configured everything properly but FSC mount option + fscachefilesd don't seem to work

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• Wifi Drops Connections with WPA2-PSK

  - by graf_ignotiev

  I run a small computer lab made up of 10 computers of identical hardware and software (Dell Latitudes with Windows 7 x64 Enterprise) and I use a ZyWALL 2WG as a router/firewall. Nine of the computers connect to the router over wifi using WPA2-PSK encryption while the last one is connected by ethernet cable. I'm having a problem where any computer connected to the wi-fi occasionally drops off the network (it cannot be pinged and the client cannot ping the gateway). It only happens on the wifi side and only when the encryption is WPA2-PSK or WPA-PSK. I tried using another router with a different make and model and had no problems. Thinking it could be a software error, I reset the router to factory defaults and installed the newest firmware (V4.04(AQI.8) | 04/09/2010), but still have the problem. The 802.1X log gives the following error User logout because of user disassociation. with this note WPA2-PSK:00242c582ece:logout where 00242c582ece is the mac address of the device. At this point I'm out of things to try and leads to follow. It looks like this user had the same or similar problem, but none of those proposed solutions work for me.

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• Port forwarding + shared connection with Ubuntu

  - by Joey Adams

  Because my wireless router's ethernet ports are defective, I set up a shared wireless connection from my laptop (which has wifi) to my eMac (which does not) via a crossover ethernet cable. The laptop is behind a router as 192.168.1.131, and the eMac is behind the laptop as 10.42.43.1 . The laptop is running Ubuntu 9.10 (Karmic). I achieved the shared connection through NetworkManager Applet. I right-clicked on the network icon at the topright, went to Edit Connections, selected the Wired connection named "Auto eth0", clicked "Edit...", went to the "IPv4 Settings" tab, and selected the Method "Shared to other computers". The eMac can now access the Internet. Now I want to enable port forwarding. There's a game I want to play that needs port 6112 forwarded (both TCP and UDP) in order to host games. I set up the router to enable port forwarding for 192.168.1.131 (the laptop), but port forwarding still isn't available on the eMac. I suppose I need to pretend my laptop is a router and configure port forwarding on it, indicating that incoming connections to the laptop (192.168.1.131) should be forwarded to the eMac on the shared connection (10.42.43.1 ). Thus, packets coming into the router on port 6112 would be redirected to the laptop (by the router), then to the eMac (by the laptop). My question is, how would I do that on Ubuntu (in light of NetworkManager's presence)? Also, if I can't get this to work, does anyone mind hosting a comp stomp? :D

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• Cisco SG200 vlan issue in ESXi VSA cluster

  - by George

  I have three Cisco SG200-26 switches, and I also have two ESXi hosts that I have connected like shown in the below "best practice" map by VMware: http://communities.vmware.com/servlet/JiveServlet/previewBody/17393-102-1-22458/VSA_networking_map.pdf Even though I created the VLANs in the SG200 and I set the two VLANs (508 and 608) as allowed for these untagged ports (where my ESX NIC's are connected), I can not ping from host 1 to host 2 when configuring the NIC's to use 608 VLAN. Am I missing something? my IP's are all in the 192.168. range, and the only reason I need the VLANs is to isolate the traffic of VSA back-end internally, only the two hosts will be using the VLANs. So I think I do not have to create virtual interfaces on my router since that's the case, is my understanding correct? Also sending my switch config screenshot below.. all 3 switches have the latest firmware (it seems these were originally linksys and got rebranded as cisco after the acquisition) http://img31.imageshack.us/img31/2503/switch.gif Any ideas what to change on the Cisco SG200 to make this work , would be appreciated! The second VLAN (608) only needs two IP's: 192.168.0.1 and 192.168.0.2 The first VLAN (508) will have about 15 IP's for ESXi Management and VSA cluster service, I could use either 192.168.1.xx or 10.0.1.xx The rest of my network (about 50 clients) is in 192.168.1.xx range VMware also states that the VLAN protocol on the physical switch must be 802.1Q, not ISL, anyone knows which of the two my SG200-26 uses? In addition to that, the only requirement from VSA is that my two hosts: -Are in the same subnet. -Have static IP addresses set. -Have the same Default Gateway configured. If I need inter-vlan routing for this, I suppose I have to create virtual interfaces on my sonicwall, and assign an IP for each VLAN, and then set routes between them? Thank you for your time!

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• Azure can't ping or telnet VM from client

  - by Raif

  I have a VM on Azure with an instance sqlserver 2012 running on it. From my work computer and my home computer I can't get sqlserver management studio connect to it. I have looked at ALL the settings recommended in numerous articles. everything is setup correctly. endpoint 1433 Private and public sqlserver tcp enabled. sqlserver tcp listening on right port sqlserver using mixed auth windows fire wall, holes poked and then disabled on both client and VM can log in from VM using the credentials that I'm trying to use remotely further more I can't ping the dns or ip or tellnet address from my local machines. I can however hit the iis from a browser using the ip. strange. CS asked me to download MS Network Monitor, which I did and pinged and telneted. I have the results saved but can't really make heads or tails of them. CS hasn't responded yet. I can post some info here that would help. EDIT Never one to shrink from a challenge, I deleted my VM and re-did everything. Now it works although my confidence azure is somewhat shaken.

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• How to avoid intrusion detection/anti spoofing issue on a sonicwall TZ series FW

  - by Ian

  We have a sonicwall tz series FW with two internet service providers connected. One of the providers has a wireless service which works a bit like an ethernet switch in that we have an ip with a /24 subnet and the gateway is .1. All other clients on the same subnet (say 195.222.99.0) have the same .1 gateway - this is important, read on. Some of our clients are also on the same subnet. Our config: X0 : Lan X1 : 89.90.91.92 X2 : 195.222.99.252/24 (GW 195.222.99.1) X1 and X2 are not connected, other than both being connected to the public Internet. Client config: X1 : 195.222.99.123/24 (GW 195.222.99.1) What fails, what works: Traffic 195.222.99.123 (client) <- 89.90.91.92 (X1) : Spoof alert Traffic 195.222.99.123 (client) <- 195.222.99.252 (X1) : OK - no spoof alert I have several clients with IPs in the 195.222.99.0 range and all provoke identical alerts. This is the alert I see on the FW: Alert Intrusion Prevention IP spoof dropped 195.222.99.252, 21475, X1 89.90.91.92, 80, X1 MAC address: 00:12:ef:41:75:88 Anti-spoofing is switched off on my FW (network-mac-ip-anti-spoofing - config for each interface) for all ports I can provoke the alerts by telneting to a port on X1 from the clients. You can't argue with the logic - this is suspicious traffic. X1 is receiving traffic with a source IP which corresponds to X2s subnet. Anyone know how can I tell the FW that packets with a src subnet of 195.222.99.0 can legitimately appear on X1? I know whats going wrong, I've seen the same thing before, but with higher end FWs you can avoid this with a few extra rules. I can't see how to do this here. And before you ask why we're using this service provider - they give us 3ms (yep 3ms, thats not an error) delay between routers.

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• Reloading NAT configuration on a running VMWare Server 2.0.2

  - by Jonathan Clarke

  I have a server running VMWare Server 2.0.2. The host is Debian Lenny. I have 15-20 virtual machines running, all attached to a single NAT network (named vmnet8). I have configured VMWare's NAT (the vmnet-natd daemon) to forward some incoming to ports to one of the VMs, since it hosts some publicly accessible services. I did this via the file /etc/vmware/vmnet8/nat/nat.conf by adding lines like the following: 80 = 192.168.100.100:80 This works great, I can reach the web server on the VM at 192.168.100.100 by connecting to the host's IP address. Sometimes, I need to add port redirections to this NAT configuration. So, I add a line to the configuration file. Now for the question. How do I make the natd process take this new configuration into account? Clearly, restarting the host machine does take it into account, and the newly added port is forwarded. However, this is not an option on this server, so how should one do this without restarting the whole host? Thanks for any ideas!

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• Not Able To Connect to Windows Server 2008 R2 using FileZilla Externally

  - by obautista

  I configured FTP Service/Role on my Windows Server 2008 R2 machine. I am able to connect from the inside, but not from the outside. On the inside I tested using cmd prompt and IE FTP. On the outside, I am testing with FileZilla and IE FTP. From the outside, IE FTP prompts me to enter my username/pwd, but nothing happens. Page eventually times out and I get "Internet Explorer cannot display page". Using FileZilla, I get the following messages. Note FileZilla resolved domain name and authenticates. I did not configure FTP Wirewall Support on the FTP site. I am not sure if I need to do this. I set up basic authentication, non-ssl, not allowing anonymous. I testing with Windows Firewall Turned off and on (I added windows firewall rule for port 21). On my network firewall (Cisco), I added a rule to forward port 21 traffic to FTP Server. Status: Resolving address of ftp.technologyblends.com Status: Connecting to 75.149.66.201:21... Status: Connection established, waiting for welcome message... Response: 220 Microsoft FTP Service Command: USER * Response: 331 Password required for . Command: PASS *** Response: 230 User logged in. Command: SYST Response: 215 Windows_NT Command: FEAT Response: 211-Extended features supported: Response: LANG EN* Response: UTF8 Response: AUTH TLS;TLS-C;SSL;TLS-P; Response: PBSZ Response: PROT C;P; Response: CCC Response: HOST Response: SIZE Response: MDTM Response: REST STREAM Response: 211 END Command: OPTS UTF8 ON Response: 200 OPTS UTF8 command successful - UTF8 encoding now ON. Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is current directory. Command: TYPE I Response: 200 Type set to I. Command: PASV Error: Connection timed out Error: Failed to retrieve directory listing

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• Why is my cat5e cable not okay?

  - by torbengb

  My LAN cable seems to work (indicator LED lights up) but the computer can't find a connection. What's wrong? Setup: I had to run a network cable from a router in one room to a computer to another room, through a hole in the wall that was too small to pass the RJ-45 plug through. The plug was cut off and the cable passed through the wall. Then a new plug was crimped on using this detailed explanation. The connection didn't work because the (factory-made!) plug in the other end used a non-standard wire order. I crimped a new plug on again, using the exact same order of the factory-made plug. The LED indicator lights up on both ends, but the computer cannot find a connection. What can be wrong? How can I find out? I don't have a cable tester. By visually inspecting my new plug, I think it's good; the wire order matches the other end, and all wires are all the way inside the plug and reach the connector piece. I've used the cable before (with both factory-made ends) so i don't think that the cable itself has a defect.

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