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• HAProxy reqrep remove URI on backend request

  - by Jim

  real quick question regarding HAProxy reqrep. I am trying to rewrite/replace the request that gets sent to the backend. I have the following example domain and URIs http://domain/web1 http://domain/web2 I want web1 to go to backend webfarm1, and web2 to go to webfarm2. Currently this does happen. However I want to strip off the web1 or web2 URI when the request is sent to the backend. Here is my haproxy.cfg frontend webVIP_80 mode http bind :80 #acl routing to backend acl web1_path path_beg /web1 acl web2_path path_beg /web2 #which backend use_backend webfarm1 if web1_path use_backend webfarm2 if web2_path default_backend webfarm1 backend webfarm1 mode http reqrep ^([^\ ]*)\ /web1/(.*) \1\ /\2 balance roundrobin option httpchk HEAD /index HTTP/1.1\r\nHost:\ example.com server webtest1 10.0.0.10:80 weight 5 check slowstart 5000ms server webtest2 10.0.0.20:80 weight 5 check slowstart 5000ms backend webfarm2 mode http reqrep ^([^\ ]*)\ /web2/(.*) \1\ /\2 balance roundrobin option httpchk HEAD /index HTTP/1.1\r\nHost:\ example.com server webtest1-farm2 10.0.0.110:80 weight 5 check slowstart 5000ms server webtest2-farm2 10.0.0.120:80 weight 5 check slowstart 5000ms If I go to http://domain/web1 or http://domain/web2 I see it in the error logs that the request on a server in each backend that the requst is for the resource /web1 or /web2 respectively. Therefore I believe there to be something wrong with my regular expression, even though I copied and pasted it from the Documentation. http://code.google.com/p/haproxy-docs/wiki/reqrep Summary: I'm trying to route traffic based on URI, however I want to strip the URI on the backend side. Go to http://domain/web1 -- backend request of / to webfarm1 Thank you! -Jim

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• Windows 7 intermittently drops wired internet/lan connection.

  - by CraigTP

  In a nutshell, my Windows 7 Ultimate PC intermittently drops it's internet connection. Why? Background: My PC is wired to my ADSL modem/router which is directly connected to the phone line. I also have wireless connectivity turned on within the router for a laptop to connect wirelessly. Every few hours or so, when using my PC, I find I cannot access the internet and pages will not load. Eventually, Windows7 will update the network icon in the task-tray to show the exclamation mark symbol on the network icon. Opening up the Network And Sharing Centre will show the red cross between the "Multiple Networks" and "The Internet". Here's a picture of the "Network And Sharing Centre" (grabbed when everything was working!) As you can see, I'm running Sun's VirtualBox on this machine and that creates a Network connection for itself. This doesn't seem to affect the intermittent dropping (i.e. the intermittent drops occur whether the VirtualBox connection is in use or not). When the connection does drop, I cannot access any internet pages, nor can I access the router's web admin page at http://192.168.1.1/, so I'm assuming I've lost all local LAN access too. It's definitely not the router (or the internet connection itself) as my laptop, using the wireless connection (and running Vista Home Premium) continues to be able to access the internet (and the router's web admin pages) just fine. Every time this happens, I can immediately restore all internet and LAN access by opening Network Adapter page, disabling the "Local Area Connection" and then re-enabling it. Give it a few seconds and everything is fine again. I assume this is because, beneath the GUI, it's effectively doing an "ipconfig /release" then "ipconfig /renew". Why does this happen in the first place, though? I've googled for this and seen quite a few other people (even on MSDN/Technet forums) experiencing the same or almost the same problem, but with no clear resolution. Suggestions of turning off IPv6 on the LAN adapter, and ensuring there's no power management "sleeping" the network adapter have been tried but do not cure the problem. There does not seem to be any particular sequence of events that cause it to happen either. I've had it go twice in 20 minutes when just randomly browsing the web with no other traffic, and I've also had it go once then not go again for 2-3 hours with the same sort of usage. Can anyone tell me why this is happening and how to make it stop? EDIT: Additional information based upon the answer provided so far: Firstly, I forgot the mention that this is Windows 7 64 bit if that makes any difference at all. I mentioned that I don't think the VirtualBox network adpater is causing this problem in any way, and I also have VirtualBox installed on two other machines, one running Vista Home Premium and the other running XP. Neither of these machine experience the same network connectivity issues as the Windows 7 machine. The IP assignment for the Windows 7 machine is the same both before and after the "drop". I have a DHCP server on the router issuing IP Addresses, however my Windows 7 machine uses a static address. Here's the output from "ipconfig": Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled Within the system's event logs, the only event that relates to the connection dropping is a "DNS Client Event" and this is generated after the connection has dropped and is an event detailing that DNS information can't be found for whatever website I may be trying to access, just as the connection drops: Log Name: System Source: Microsoft-Windows-DNS-Client Event ID: 1014 Task Category: None Level: Warning Keywords: User: NETWORK SERVICE Description: Name resolution for the name weather.service.msn.com timed out after none of the configured DNS servers responded. The network adapter chipset is Realtek PCIe GBE Family Controller and I have confirmed that this is the correct chipset for the motherboard (Asus M4A77TD PRO), and in fact, Windows Update installed an updated driver for this on 12/Jan/2009. The details of the update say that it's a Realtek software update from December 2009. Incidentally, I was still having the same intermittent problems prior to this update. It seems to have made no difference at all. EDIT 2 (1 Feb 2010): In my quest to solve this problem, I have discovered some more interesting information. On another forum, someone suggested that I should try running Windows in "Safe Mode With Networking" and see if the problem continues to occur. This was a fantastic suggestion and I don't know why I didn't think of it sooner myself. So, I proceeded to run in Safe Mode with Networking for a number of hours, and amazingly, the "drops" didn't occur once. It was a positive discovery, however, due to the intermittent nature of the original problem, I wasn't completely convinced that the problem was cured. One thing I did note is that the fan on my GFX card was running alot louder than normal. This is due to the fact that I have an ASUS ENGTS250 graphics card (http://www.asus.com/product.aspx?P_ID=B6imcoax3MRY42f3) which had a known problem with a noisy fan until a BIOS update fixed the issue. (See the "Manufacturer Response" here: http://www.newegg.com/Product/Product.aspx?Item=N82E16814121334 for details). Well, running in safe mode had the fan running (incorrectly) at full speed (as it did before the BIOS update), but with an (apparently) stable network connection. Obviously some driver was not loaded for the GFX card when in Safe Mode so this got me thinking about the GFX card (since the very noisy fan was quite obvious when running in Safe Mode). I rebooted into normal mode, and found that Nvidia had a very up-to-date new driver for my GFX card (only about 1 week old), so I downloaded the appropriate driver and installed it. After installation and a reboot, I was able to use my PC for an entire day with NO NETWORK DROPS!!! This was on Saturday. However, on the Sunday, I also had my PC for pretty much the entire day and experienced 2 network drops. No other changes have been made to my PC in this time. So, the story seems to be that updating my graphics card drivers seems to have improved (if not completely fixed) the issue, however, I'm still searching for a proper fix for this problem. Hopefully, this information may help anyone who may have additional ideas as to why this problem is occuring in the first place. (And why does new GFX card drivers have anything to do with the network?) I appreciate everyone's feedback so far. However, I'll have to ask once more if anyone has any further ideas of how to fix this particular problem? Thanks in advance.

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• The Message Queuing service failed to join the computer's domain 'DOMAIN' Error 0xc00e0025

  - by SimonGoldstone

  Struggling to get MSMQ installed in Domain Integration mode on Windows 2012 (Azure). So far, I've provisioned a brand new Windows Server 2012 (R2) machine on the Azure platform and installed the Active Directory role and promoted the machine to a domain controller. Once the AD was in place, I then added the MSMQ feature, along with the Directory Integration add on. However, it will not install in AD integration mode. It will only work in Workgroup mode. I can verify this by running the following powershell command: New-MSMQQueue -name Queue1 -queuetype Public When I run this command, I get the following error: New-MsmqQueue : A workgroup installation computer does not support the operation. The event viewer reveals to errors in the Application log: 1. The Message Queuing service failed to join the computer's domain 'DOMAIN'. Error 0xc00e0025: 2. Message Queuing was unable to create the msmq (MSMQ Configuration) object in Active Directory Domain Services. Error c00e0025h: I'm struggling here. Any advice?

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• Restarting Haproxy Gracefully

  - by Anand Gupta

  As per various blogs, HAproxy can be gracefully restarted using the following command: sudo haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid) TO verify this, I had set up a apache bench script which contiguously sent message to haproxy. Ideally, whenever I restarted my server the script should not have an affect on the apache bunch execiton. But, it seems that whenever Haproxy is restarted apache bench scripts terminate and the connection to load balancer is lost. Here is the details of my HaProxy configuration file : global nbproc 4 log 127.0.0.1 local0 log 127.0.0.1 local1 notice #log loghost local0 info maxconn 4096 #chroot /usr/share/haproxy user haproxy group haproxy daemon pidfile /var/run/haproxy.pid stats socket /home/ubuntu/haproxy.sock #debug #quiet defaults log global mode http option httplog option dontlognull retries 3 option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 listen webstats bind 0.0.0.0:1000 stats enable mode http stats uri /lb?stats stats auth anand:aaaaaaaa #stats refresh listen web-farm 0.0.0.0:80 mode http balance roundrobin option httpchk HEAD /index.php HTTP/1.0 server server2.com 1.1.1.1:80 server serve1.com 1.1.1.2:80 ~ Please let me know what am I missing here.

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• Amazon Ec2: Problem In Setting up FTP Server

  - by Muntasir

  after setting up My vsFtp Server ON Ec2 i am facing problem , my client is Filezilla and i am getting this error Response: 230 Login successful. Command: OPTS UTF8 ON Response: 200 Always in UTF8 mode. Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" Command: TYPE I Response: 200 Switching to Binary mode. Command: PASV Response: 500 OOPS: invalid pasv_address Command: PORT 10,130,8,44,240,50 Response: 500 OOPS: priv_sock_get_cmd Error: Failed to retrieve directory listing Error: Connection closed by server this is the current setting in my vsftpd.conf #nopriv_user=ftpsecure #async_abor_enable=YES # ASCII mangling is a horrible feature of the protocol. #ascii_upload_enable=YES #ascii_download_enable=YES # You may specify a file of disallowed anonymous e-mail addresses. Apparently # useful for combatting certain DoS attacks. #deny_email_enable=YES # (default follows) #banned_email_file=/etc/vsftpd/banned_emails # chroot_local_user=YES #chroot_list_enable=YES # (default follows) #chroot_list_file=/etc/vsftpd/chroot_list GNU nano 2.0.6 File: /etc/vsftpd/vsftpd.conf # #ls_recurse_enable=YES # # When "listen" directive is enabled, vsftpd runs in standalone mode and # listens on IPv4 sockets. This directive cannot be used in conjunction # with the listen_ipv6 directive. listen=YES # # This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6 # sockets, you must run two copies of vsftpd with two configuration files. # Make sure, that one of the listen options is commented !! #listen_ipv6=YES pam_service_name=vsftpd userlist_enable=YES tcp_wrappers=YES pasv_enable=YES pasv_min_port=2345 pasv_max_port=2355 listen_port=1024 pasv_address=ec2-xxxxxxx.compute-1.amazonaws.com pasv_promiscuous=YES Note: i have already open those port in security group i mean listen port, min max if someone shows me how to fix this i will be very greatful thanks

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• Outlook errors and blank address book?

  - by Chasester

  I have a user with a fresh install of Windows 7 64 bit. Office 2010 was installed also. Everything worked great until we installed Adobe Pro 9 and Wordperfect 12. (for outlook we are not using exchange). Then Outlook popped an error saying could not start Outlook. I then modified it to run in compatibility mode and Outlook starts. Then took compatibility mode off and outlook continues to start without difficulty. However, her address book went blank (contacts are all there). In the properties of the contact folder it is checked (and grayed out) to include this folder in the address book, and the Outlook address book is listed when I look at account properties. I tried creating a new profile to no avail. I tried creating a new profile and creating a new pst file - to no avail. I tried uninstalling office, removing the folders inside roaming and local, reinstalled office; got the same could not start Outlook error - did the compatibility mode bit and got it to start - but the Address book continues to be empty. Has anyone run across this before? I'm thinking that there must be some other preferences type folder other than those in Roaming and Local since her signature remained when I reinstalled Office.

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• Help diagnosing Likewise Open Active Directory authentication problem

  - by purpletonic

  I have two servers which were up until recently authenticating against the companies Active Directory Domain controller. I believe a recent change to the Active Directory administrator password caused the servers to stop authenticating against AD. I tried to add the servers back to the domain using the command: domainjoin-cli join example.com adusername this seemed to work without complaints, but when I try to login via ssh with my domain account, I get an invalid password error. When I run the command: lw-enum-users it prints all of the domain users, and looking up my own account, I see that it is valid and my password hasn't expired. I also ran lw-get-status and received the following: LSA Server Status: Agent version: 5.0.0 Uptime: 0 days 3 hours 35 minutes 46 seconds [Authentication provider: lsa-activedirectory-provider] Status: Online Mode: Un-provisioned Domain: example.com Forest: example.com Site: Default-First-Site-Name Online check interval: 300 seconds \[Trusted Domains: 1\] \[Domain: EXAMPLE\] DNS Domain: example.com Netbios name: EXAMPLE Forest name: example.com Trustee DNS name: Client site name: Default-First-Site-Name Domain SID: S-1-5-24-1081533780-4562211299-822531512 Domain GUID: 057f0239-7715-4711-e64b-eb5eeed20e65 Trust Flags: \[0x001d\] \[0x0001 - In forest\] \[0x0004 - Tree root\] \[0x0008 - Primary\] \[0x0010 - Native\] Trust type: Up Level Trust Attributes: \[0x0000\] Trust Direction: Primary Domain Trust Mode: In my forest Trust (MFT) Domain flags: \[0x0001\] \[0x0001 - Primary\] \[Domain Controller (DC) Information\] DC Name: dc1.example.com DC Address: 10.11.0.103 DC Site: Default-First-Site-Name DC Flags: \[0x000003fd\] DC Is PDC: yes DC is time server: yes DC has writeable DS: yes DC is Global Catalog: yes DC is running KDC: yes [Authentication provider: lsa-local-provider] Status: Online Mode: Local system Anyone got any ideas what might be occurring? Thanks in advance!

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• How can I view the binary contents of a file natively in Windows 7? (Is it possible.)

  - by Shannon Severance

  I have a file, a little bigger than 500MB, that is causing some problems. I believe the issue is in the end of line (EOL) convention used. I would like to look at the file in its uninterpreted raw form (1) to confirm the EOL convention of the file. How can I view the "binary" of a file using something built in to Windows 7? I would prefer to avoid having to download anything additional. (1) My coworker and I opened the file in text editors, and they show the lines as one would expect. But both text editors will open files with different EOL conventions and interpret them automagically. (TextEdit and Emacs 24.2. For Emacs I had created a second file with just the first 4K bytes using head -c4096 on a linux box and opened that from my windows box. I attempted to use hexl-mode in Emacs, but when I went to hexl-mode and back to text-mode, the contents of the buffer had changed, adding a visible ^M to the end of each line, so I'm not trusting that at the moment. I believe the issue may be in the end of line character(s) used. The editors my coworker and I tried (1) just automagically recognized the end of line convention and showed us lines. And based on other evidence I believe the EOL convention is carriage return only. (2) return only. are able to recognize and To know what is actually in the file, I would like to look at the binary contents of the file, or at least a couple thousand bytes of the file, preferablely in Hex, though I could work with decimal or octal. Just ones an zeros would be pretty rough to look at.

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• How does the EFI partition work and can I boot an x86 OS with a bootx64.efi file?

  - by Ian

  I have a Thinkpad X230 laptop and I want to install Linux Mint Debian Edition along side Windows 7 on my GPT formatted SSD with the BIOS in UEFI mode. The problem is that I don't understand how EFI booting works. There seems to be an EFI partition involved with some folders and binary files in it. GRUB 2 seems to be able to make more folders in it (I followed this guide http://www.thinkwiki.org/wiki/UEFI_Firmware), but it appears that the only file that does anything is the bootx64.efi file in the /efi/boot folder of the EFI partition (I am not sure if this is always the case, but it appears to be the case for my laptop http://www.thinkwiki.org/wiki/Category:X220). Here is what I have been able to do: I can install Linux Mint Debian Edition x86 with the BIOS in BIOS mode on my SSD. I can then install grub-efi and follow the guide linked above. The problem is that I don't get a GRUB prompt when I switch the BIOS to UEFI mode. It just boots Windows. It appears that I can either boot from the SSD or something called "Windows Boot Manager". If I replace the bootx64.efi with the file created by GRUB, I can no longer boot directly from the SSD. Booting from "Windows Boot Manager" still works fine. I realize that the guide says to use x64 Linux, but Linux Mint Debian Edition x64 hangs during the install process. I am really confused. What should I do? Can anyone explain how the EFI boot partition works? Can a bootx64.efi boot an x86 OS? Should I just give up with using UEFI? I haven't been able to find very much useful information about using Debian based operating systems with UEFI. Thanks, Ian

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• ADSL with RFC 2684 Bridging

  - by Axel Isouard

  My new ADSL line is now enabled, I can finally use my Netgear DM111Pv2 to use to the Internet. My ISP has told me a big surprise : I don't need to use a login and a password to connect to the Internet, then I must use the RFC 2684 bridging mode. It works pretty fine on the ADSL modem's side, but I've spent one night trying to figure out how to connect to the Internet through this modem. I only have a Fonera 2.0n and a computer running Gentoo Linux. I've been trying to use the br2684ctl utility with brctl on my Gentoo, first I've configured my kernel in that way : CONFIG_PPP=y CONFIG_PPP_BSDCOMP=y CONFIG_PPP_DEFLATE=y # CONFIG_PPP_FILTER is not set CONFIG_PPP_MPPE=y # CONFIG_PPP_MULTILINK is not set CONFIG_PPPOATM=y CONFIG_PPPOE=y CONFIG_PPP_ASYNC=y CONFIG_PPP_SYNC_TTY=y [...] CONFIG_ATM=y CONFIG_ATM_CLIP=y CONFIG_ATM_CLIP_NO_ICMP=y CONFIG_ATM_LANE=y CONFIG_ATM_MPOA=y CONFIG_ATM_BR2684=y # CONFIG_ATM_BR2684_IPFILTER is not set And I still get these messages : cirus nais # br2684ctl -b -c 0 -e 0 -a 8.35 br2684ctl[8041]: Interface "nas0" created sucessfully br2684ctl[8041]: Communicating over ATM 0.8.35, encapsulation: LLC br2684ctl[8041]: Fatal: failed to connect on socket; No such device The brctl utility keeps telling me "Invalid argument" each time I try to add the nas0 interface into my bridge, I'm honestly hoping I'm doing wrong. I've been following this README carefully and this tutorial on setting up a PPPoE connection with Gentoo, but the PPPoE interface just tries to start, and nothing special related to PPP happens, I can't see the interface when I do ifconfig. So, I'm asking you if there's something huge I've been missing since the beginning ! Maybe I should wait to buy a new router fully supporting the RFC2684 bridging mode, but I'm more interested in setting up this mode on my Fonera 2.0n and even my Raspberry Pi !

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• Large mailbox in Outlook 2007 takes ages to index

  - by Reado

  In our company each user has a single mailbox and all email they have ever sent/received is in that mailbox. We don't do archiving to PST and we thought that was the way forward. The problem we now have is if someone switches to another PC for the day and opens Outlook, it has to download all emails first to that PC (cached mode) but even then when they try to search for something, Outlook says items are still being indexed. One user has over 100,000 items to be indexed and it's been saying that for about a week! As a temporary workaround I have turned off instant searching which allows them to search for anything, but it takes time to filter through, and Outlook doesn't exactly indicate if it's still searching for something, so in most cases the user thinks the search isn't working when really it is and it's just taking time to populate the results. I need a solution that allows the mailbox to be indexed really quickly if the user has to login to another PC. Are we best using Online Mode instead of Cached Mode or is there another way around this? Thanks in advance.

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• Enabling AHCI in BIOS for SSD

  - by Robert

  I am trying to help a friend with a desktop upgrade. It is an old machine with an Intel DG31 main board. The board has 1 IDE port to which a DVD-ROM drive is connected, and 2 SATA ports. 1 SATA port had a hard drive with XP on it. I have made that the secondary drive now and wiped the OS as requested, so it is just for data. The new SSD has been installed but I read that for best results one must enable AHCI in the BIOS? So I checked and in the BIOS there is a SATA Mode setting with 2 options - Native and Legacy. I think Native means AHCI? After setting to Native, I installed Windows 7 Home Premium and all the latest drivers from Intel's website and all Windows Updates. Now when I check Device Manager I see this: Also Microsoft says HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci\Start and HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\IastorV\Start should have value 0 for AHCI but I see that the value is 3 for both. So does this mean that Native mode is not AHCI? Or Windows 7 ignored BIOS setting and installed in IDE mode, maybe because both cables are present? Please help me enable AHCI on this system. Thanks!

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• Windows 7 Black Screen On Boot, Seperate Bootable VHD Works Fine

  - by David Osborn

  I have a Window 7 x64 install with a bootable VHD (also Windows 7 x64). I was having problems getting my homeserver to do backups (VSS erred) so I ran check disk and used a tool from MS (cleanc2r.exe) to remove an empty Q drive from the VHD that I believe was a result of installing Office 2010 Beta. (All of this was done on the bootable VHD, not the main install.) Now I can't boot into the main install. It gets past the Starting Windows screen and then goes black. I can still boot into the bootable VHD and everything works fine from there. I have tried to boot the main install in Safe Mode/Safe Mode with Networking/and Safe Mode command prompt and it has the same issue. I ran chkdsk /r on the main install and after doing all the work there was a message about correcting some free space that was marked as allocated and also that it was unable to make an entry into the event log. I tried the startup repair utility and it found no problems. I don't see the setting for restore to last know good configuration so I couldn't do that. I don't recall installing anything new to the main install nor having hooked up any new hardware recently.

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• Set up WLAN in 3-level house

  - by Balint Erdi

  I'm having a hard time setting up the network in our house. It has three levels (basement, ground floor, first level). The WLAN is set up by an ASUS RT-N12 router which provides perfect coverage for the ground floor and the basement. However, I set up my "home office" in the basement where the signal barely arrived. So I purchased a TP-Link TL-WA901ND (300 Mbps) Access Point which I set up in the other corner of the ground floor to expand the ASUS router's range. I used the AP's Repeater mode for that. The distance between my computer and the TP-Link AP is 6-7 meters. There is a staircase going down from the ground floor to the basement so there are no solid walls between the computer and the AP. This setup mostly works (I am writing this from the basement) but it is not reliable (the signal strength sometimes goes down to ~40% of the max) sometimes so I wonder if I am doing it correctly or if there is a better way. Screenshot of the router's and the AP's dashboard screen follow: Any comments on what I am doing wrong or hints for improvement are appreciated. Thank you. UPDATE Tried one more thing, setting up the TP-LINK AP in Access Point mode. That way, I can make it use a different SSID. I enabled WDS/Bridge so that it expands the range of the ASUS router (see screenshot). That does not work, either, if I connect to the network set up by the TP-LINK device (PELSTER-2), I can't reach the external network (the Internet). It seems the problem always comes back to this, the TP-LINK does not have access to the external network, whatever its mode of operation.

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• java.lang.OutOfMemoryError: unable to create new native thread

  - by Brad

  I consistently get this exception when trying to run my Junit tests on my mac: java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:658) at java.util.concurrent.ThreadPoolExecutor.addIfUnderMaximumPoolSize(ThreadPoolExecutor.java:727) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:657) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:92) at com.google.appengine.tools.development.ApiProxyLocalImpl$PrivilegedApiAction.run(ApiProxyLocalImpl.java:197) at com.google.appengine.tools.development.ApiProxyLocalImpl$PrivilegedApiAction.run(ApiProxyLocalImpl.java:184) at java.security.AccessController.doPrivileged(Native Method) at com.google.appengine.tools.development.ApiProxyLocalImpl.doAsyncCall(ApiProxyLocalImpl.java:172) at com.google.appengine.tools.development.ApiProxyLocalImpl.makeAsyncCall(ApiProxyLocalImpl.java:138) The same set of unit tests pass perfectly fine on ubuntu and windows. Some information about my system resources on the mac: $ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 1 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 266 virtual memory (kbytes, -v) unlimited $ java -version java version "1.6.0_24" Java(TM) SE Runtime Environment (build 1.6.0_24-b07-334-10M3326) Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02-334, mixed mode) The reason I dont think this is an application issue is because the same tests pass in different environments. I have tried setting heap to 1024m, 512m and setting the stack to 64k and 128k (and each of these combinations) with no luck. My open files was originally 256 and I have bumped this to 1024. I have been googling around for a bit and all posts say to decrease heap size and increase stack size but that doesnt seem to help. Anyone have anymore ideas? EDIT: Here are is some environment information on my ubuntu box: $ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 20 file size (blocks, -f) unlimited pending signals (-i) 16382 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) unlimited virtual memory (kbytes, -v) unlimited file locks (-x) unlimited $ java -version java version "1.6.0_24" Java(TM) SE Runtime Environment (build 1.6.0_24-b07) Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02, mixed mode)

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• Explorer.EXE ordinal 423 not found in urlmon.dll after updates/IE8 install

  - by Zoot

  Setting up a brand new Dell Optiplex 980 with Windows XP SP3, and everything started up fine on the first boot. My first task was to install system updates, including IE8 and WGA. After the required reboot after installing updates, I now get this error message: Explorer.EXE Ordinal not found. The ordinal 423 could not be located in the dynamic link library urlmon.dll Per my cursory Google search, this forum thread places the blame squarely on IE8. The solution provided is to enter safe mode and remove IE8. Unfortunately, when I press F8 to choose to boot safe mode, I only have the option of "Windows XP SP3 Professional" and no safe mode options. Any other ideas? Thanks in advance. FYI, I can get to the Windows Task Manager by holding down Control-Alt-Delete, but programs don't seem to run properly if you select them. I tried chatting with Dell Support, and we tried to initiate the system restore at c:\windows\system32\restore\rstrui.exe, but that had a similar "ordinal 423 not found in urlmon.dll" error.

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• ephemeral vs EBS partitions

  - by hortitude

  I launched an EBS backed AMI with all the defaults. I noticed that it automicatlly had attached an ephemeral disk. I was just wondering if there was a good programtic way to know that this particular device is ephemeral vs some EBS volume I had decided to attach: ubuntu@-----:~$ df -ahT Filesystem Type Size Used Avail Use% Mounted on /dev/xvda1 ext4 7.9G 867M 6.7G 12% / proc proc 0 0 0 - /proc sysfs sysfs 0 0 0 - /sys none fusectl 0 0 0 - /sys/fs/fuse/connections none debugfs 0 0 0 - /sys/kernel/debug none securityfs 0 0 0 - /sys/kernel/security udev devtmpfs 1.9G 12K 1.9G 1% /dev devpts devpts 0 0 0 - /dev/pts tmpfs tmpfs 751M 172K 750M 1% /run none tmpfs 5.0M 0 5.0M 0% /run/lock none tmpfs 1.9G 0 1.9G 0% /run/shm /dev/xvdb ext3 394G 199M 374G 1% /mnt ubuntu@-----:~$ mount /dev/xvda1 on / type ext4 (rw) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) udev on /dev type devtmpfs (rw,mode=0755) devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) none on /run/shm type tmpfs (rw,nosuid,nodev) /dev/xvdb on /mnt type ext3 (rw,_netdev)

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• Have an Input/output error when connecting to a server via ssh

  - by Shehzad009

  Hello I seem to be having a problem while connecting to a Ubuntu Server while connecting via ssh. When I login, I get this error. Could not chdir to home directory /home/username: Input/output error It seems like my home folder is corrupt or something. I cannot ls in the home folder directory, and in my usename directory, I can't cd into this. As root I cannot ls in the home directory as well or in any directory in Home. I notice as well when I save in vim or quit, it get this error at the bottom of the page E138: Cannot write viminfo file /home/root/.viminfo! Any ideas? EDIT: this is what happens if I type in these commands mount proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) fusectl on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) /dev/mapper/RAID1-lvvar on /var type xfs (rw) /dev/mapper/RAID5-lvsrv on /srv type xfs (rw) /dev/mapper/RAID5-lvhome on /home type xfs (rw) /dev/mapper/RAID1-lvtmp on /tmp type reiserfs (rw) dmesg | tail [1213273.364040] Filesystem "dm-3": xfs_log_force: error 5 returned. [1213274.084081] Filesystem "dm-4": xfs_log_force: error 5 returned. [1213309.364038] Filesystem "dm-3": xfs_log_force: error 5 returned. [1213310.084041] Filesystem "dm-4": xfs_log_force: error 5 returned. [1213345.364039] Filesystem "dm-3": xfs_log_force: error 5 returned. [1213346.084042] Filesystem "dm-4": xfs_log_force: error 5 returned. [1213381.365036] Filesystem "dm-3": xfs_log_force: error 5 returned. [1213382.084047] Filesystem "dm-4": xfs_log_force: error 5 returned. [1213417.364039] Filesystem "dm-3": xfs_log_force: error 5 returned. [1213418.084063] Filesystem "dm-4": xfs_log_force: error 5 returned. fdisk -l /dev/sda Cannot open /dev/sda

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• SSH login very slow on OS X Leopard

  - by acjohnson55

  My SSH sessions take a very long time to initiate. This applies for logins with and without passwords, interactive and non-interactive. I have tried setting 'GSSAPIAuthentication no' and 'IPQoS 0x00' on the client side, and 'UseDNS no' on the server side, but no dice. I'm really stumped and frustrated. The worst part is that it SFTP takes forever to establish connections too, making file transfer much longer than it would be otherwise. I thought the problem might be something with PAM, because of where the hang is in the sshd log below, so I tried commenting out each line one-by-one in the /etc/pam.d/sshd file. Some caused login to be impossible, some had no apparent effect. I can't really tell if PAM is stalling for other services, but I can say that su'ing into my account from another account with 'su -l' has no apparent delay. I tried creating a new user account, just to see if there was something wrong with my existing account, and the same problem persisted. Any ideas of what's going on? On the client side, the most verbose mode outputs (redacted where reasonable): OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data ... debug1: ... line 1: Applying options for ... debug1: Reading configuration data /etc/ssh_config debug1: /etc/ssh_config line 20: Applying options for * debug1: /etc/ssh_config line 53: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to ... [x.x.x.x] port 22. debug1: Connection established. debug1: identity file /.../.ssh/id_rsa type -1 debug1: identity file /.../.ssh/id_rsa-cert type -1 debug3: Incorrect RSA1 identifier debug3: Could not load "/.../.ssh/id_dsa" as a RSA1 public key debug1: identity file /.../.ssh/id_dsa type 2 debug1: identity file /.../.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.2 debug1: match: OpenSSH_5.2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9 debug2: fd 3 setting O_NONBLOCK debug3: load_hostkeys: loading entries for host "..." from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],ssh-rsa debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: [email protected],[email protected],ssh-rsa,[email protected],[email protected],ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: none,[email protected],zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: none,[email protected] debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5 debug1: kex: server->client aes128-ctr hmac-md5 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: dh_gen_key: priv key bits set: 136/256 debug2: bits set: 523/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA ... debug3: load_hostkeys: loading entries for host "..." from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug3: load_hostkeys: loading entries for host "x.x.x.x" from file "/.../.ssh/known_hosts" debug3: load_hostkeys: found key type RSA in file /.../.ssh/known_hosts:9 debug3: load_hostkeys: loaded 1 keys debug1: Host '...' is known and matches the RSA host key. debug1: Found key in /.../.ssh/known_hosts:9 debug2: bits set: 492/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /.../.ssh/id_dsa (0x7f8b7b41d6c0) debug2: key: /.../.ssh/id_rsa (0x0) debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: start over, passed a different list publickey,password,keyboard-interactive debug3: preferred publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering DSA public key: /.../.ssh/id_dsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug1: Server accepts key: pkalg ssh-dss blen 434 debug2: input_userauth_pk_ok: fp ... debug3: sign_and_send_pubkey: DSA ... debug1: Authentication succeeded (publickey). Authenticated to ... ([x.x.x.x]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. ****** Hangs here ****** debug2: callback start debug2: client_session2_setup: id 0 debug2: fd 3 setting TCP_NODELAY debug2: channel 0: request pty-req confirm 1 debug1: Sending environment. debug3: Ignored env TERM_PROGRAM debug3: Ignored env SHELL debug3: Ignored env TERM debug3: Ignored env TMPDIR debug3: Ignored env Apple_PubSub_Socket_Render debug3: Ignored env TERM_PROGRAM_VERSION debug3: Ignored env TERM_SESSION_ID debug3: Ignored env USER debug3: Ignored env COMMAND_MODE debug3: Ignored env SSH_AUTH_SOCK debug3: Ignored env Apple_Ubiquity_Message debug3: Ignored env __CF_USER_TEXT_ENCODING debug3: Ignored env PATH debug3: Ignored env MKL_NUM_THREADS debug3: Ignored env PWD debug1: Sending env LANG = en_US.UTF-8 debug2: channel 0: request env confirm 0 debug3: Ignored env HOME debug3: Ignored env SHLVL debug3: Ignored env DYLD_LIBRARY_PATH debug3: Ignored env PYTHONPATH debug3: Ignored env LOGNAME debug3: Ignored env DISPLAY debug3: Ignored env SECURITYSESSIONID debug3: Ignored env _ debug2: channel 0: request shell confirm 1 debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 On the server side, the debug output looks like: Sep 16 18:46:40 ... sshd[31435]: debug1: inetd sockets after dupping: 3, 4 Sep 16 18:46:40 ... sshd[31435]: Connection from x.x.x.x port 52758 Sep 16 18:46:40 ... sshd[31435]: debug1: Current Session ID is 56AC0FB0 / Session Attributes are 00008000 Sep 16 18:46:40 ... sshd[31435]: debug1: Running in inetd mode in a non-root session... assuming inetd created the session for us. Sep 16 18:46:40 ... sshd[31435]: debug1: Client protocol version 2.0; client software version OpenSSH_5.9 Sep 16 18:46:40 ... sshd[31435]: debug1: match: OpenSSH_5.9 pat OpenSSH* Sep 16 18:46:40 ... sshd[31435]: debug1: Enabling compatibility mode for protocol 2.0 Sep 16 18:46:40 ... sshd[31435]: debug1: Local version string SSH-2.0-OpenSSH_5.2 Sep 16 18:46:40 ... sshd[31435]: debug1: Checking with Service ACLs for ssh login restrictions Sep 16 18:46:40 ... sshd[31435]: debug1: call to mbr_user_name_to_uuid with <...> suceeded to retrieve user_uuid Sep 16 18:46:40 ... sshd[31435]: debug1: Call to mbr_check_service_membership failed with status <0> Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: initializing for "..." Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: setting PAM_RHOST to "x.x.x.x" Sep 16 18:46:40 ... sshd[31435]: Failed none for ... from x.x.x.x port 52758 ssh2 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys2 Sep 16 18:46:40 ... sshd[31435]: debug1: fd 5 clearing O_NONBLOCK Sep 16 18:46:40 ... sshd[31435]: debug1: matching key found: file /.../.ssh/authorized_keys2, line 1 Sep 16 18:46:40 ... sshd[31435]: Found matching DSA key: ... Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: temporarily_use_uid: 509/20 (e=0/0) Sep 16 18:46:40 ... sshd[31435]: debug1: trying public key file /.../.ssh/authorized_keys2 Sep 16 18:46:40 ... sshd[31435]: debug1: fd 5 clearing O_NONBLOCK Sep 16 18:46:40 ... sshd[31435]: debug1: matching key found: file /.../.ssh/authorized_keys2, line 1 Sep 16 18:46:40 ... sshd[31435]: Found matching DSA key: ... Sep 16 18:46:40 ... sshd[31435]: debug1: restore_uid: 0/0 Sep 16 18:46:40 ... sshd[31435]: debug1: ssh_dss_verify: signature correct Sep 16 18:46:40 ... sshd[31435]: debug1: do_pam_account: called Sep 16 18:46:40 ... sshd[31435]: Accepted publickey for ... from x.x.x.x port 52758 ssh2 Sep 16 18:46:40 ... sshd[31435]: debug1: monitor_child_preauth: ... has been authenticated by privileged process Sep 16 18:46:40 ... sshd[31435]: debug1: PAM: establishing credentials ***** Hangs here ***** Sep 16 18:46:54 ... sshd[31435]: User child is on pid 31654 Sep 16 18:46:54 ... sshd[31654]: debug1: PAM: establishing credentials Sep 16 18:46:54 ... sshd[31654]: debug1: permanently_set_uid: 509/20 Sep 16 18:46:54 ... sshd[31654]: debug1: Entering interactive session for SSH2. Sep 16 18:46:54 ... sshd[31654]: debug1: server_init_dispatch_20 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_open: ctype session rchan 0 win 1048576 max 16384 Sep 16 18:46:54 ... sshd[31654]: debug1: input_session_request Sep 16 18:46:54 ... sshd[31654]: debug1: channel 0: new [server-session] Sep 16 18:46:54 ... sshd[31654]: debug1: session_new: session 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_open: channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_open: session 0: link with channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_open: confirm session Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_global_request: rtype [email protected] want_reply 0 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request pty-req reply 1 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req pty-req Sep 16 18:46:54 ... sshd[31654]: debug1: Allocating pty. Sep 16 18:46:54 ... sshd[31435]: debug1: session_new: session 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_pty_req: session 0 alloc /dev/ttys008 Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request env reply 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req env Sep 16 18:46:54 ... sshd[31654]: debug1: server_input_channel_req: channel 0 request shell reply 1 Sep 16 18:46:54 ... sshd[31654]: debug1: session_by_channel: session 0 channel 0 Sep 16 18:46:54 ... sshd[31654]: debug1: session_input_channel_req: session 0 req shell Sep 16 18:46:54 ... sshd[31655]: debug1: Setting controlling tty using TIOCSCTTY.

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• IPSec for LAN traffic: Basic considerations?

  - by chris_l

  This is a follow-up to my Encrypting absolutely everything... question. Important: This is not about the more usual IPSec setup, where you want to encrypt traffic between two LANs. My basic goal is to encrypt all traffic within a small company's LAN. One solution could be IPSec. I have just started to learn about IPSec, and before I decide on using it and dive in more deeply, I'd like to get an overview of how this could look like. Is there good cross-platform support? It must work on Linux, MacOS X and Windows clients, Linux servers, and it shouldn't require expensive network hardware. Can I enable IPSec for an entire machine (so there can be no other traffic incoming/outgoing), or for a network interface, or is it determined by firewall settings for individual ports/...? Can I easily ban non-IPSec IP packets? And also "Mallory's evil" IPSec traffic that is signed by some key, but not ours? My ideal conception is to make it impossible to have any such IP traffic on the LAN. For LAN-internal traffic: I would choose "ESP with authentication (no AH)", AES-256, in "Transport mode". Is this a reasonable decision? For LAN-Internet traffic: How would it work with the internet gateway? Would I use "Tunnel mode" to create an IPSec tunnel from each machine to the gateway? Or could I also use "Transport mode" to the gateway? The reason I ask is, that the gateway would have to be able to decrypt packages coming from the LAN, so it will need the keys to do that. Is that possible, if the destination address isn't the gateway's address? Or would I have to use a proxy in this case? Is there anything else I should consider? I really just need a quick overview of these things, not very detailed instructions.

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• Windows 7 Not Starting and System Repair Not Loading

  - by Mark

  I have a Dell Inspiron 1545 running Windows 7 When turning on my PC I keep receiving a black screen with the option to use System Repair or Start Normally. Both options lead me to the System Repair background except no matter how long I wait the system restore options never show up. Choosing F8 and running all of the options including safe mode encounters the same result above. I tried to to use 2 system recovery disks 32x and 64x I downloaded and both lead to similiar results. When I choose System Repair running from the disk the System Repair Question asking to select a language pops ups but after this no matter how long I wait no other options appear. Next after restarting and selecting F8 (after hitting f12 and running from CD) I choose 'Run From Safe Mode with Command Prompt' I am able to run all of the options from System Restore with differing results: Startup Repair: Choosing this ends up in system repair indefinitely (left running 12 hrs) System Restore: Does Nothing. PC thinks for a second and then stops. When selecting ShutDown I see an error message stating there are no restore points. System Image Recovery: Service Cannot be started in Safe Mode Windows Memory Diagnostic: Runs test but then leads to system repair background which never loads system repair Command Prompt: chkdsk /r -Cannot Lock Current Drive...write protected. chkdsk /f -Cannot Lock Current Drive...write protected. bootcfg - Cannot open Boot.Ini file bootcfg - Ran all 3 (rebuildBcd, FixMbr and Fixboot) but PC still goes to System Repair background with no repair options popping up upon restart (without recovery CD). I'm on the verge of purchasing a boot utility disk for $50 unless there is anything else short of "take it to a computer shop" that somebody can suggest I try.

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• Problems with word completion on Windows Mobile

  - by Rowland Shaw

  For "some reason" the word completion function on my windows mobile phone (HTC Diamond, rebadged as a T-Mobile MDA Compact IV (UK) running WM6.1 with HTC Touch Flo 3D) hasn't worked since one of my firends was taking a look at the phone (I remember him bitching about it being too obtrusive for him, as an iPhone fanboy). I've checked all the obvious settings ( Start Input Word Completion ) and everything looks set there; I tried a hard reset, to no avail and even tried upgrading the ROM t the latest from my network provider. I even tried walking into the store where I bought the phone, and the staff couldn't fix the issue. I still have my old handset, which also runs WM6.1 (a T-Mobile MDA Compact III (UK), albeit without Touch Flo 3D), and the word completion works on there, so I'm a little confused as to why I can't get it to work again on my new handset. Can anybody identify why this might not be working, or help me fix it? Edit: Even "Touch Input Settings" has both "Word Completion in T9 mode" and "Word Completion in ABC mode" checked. The full qwerty keyboard option is in T9 mode, and word completion works for this input method; It still does not work for my preferred, "Letter Recogniser" method.

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• How to manage mounted partitions (fstab + mount points) from puppet

  - by Cristian Ciupitu

  I want to manage the mounted partitions from puppet which includes both modifying /etc/fstab and creating the directories used as mount points. The mount resource type updates fstab just fine, but using file for creating the mount points is bit tricky. For example, by default the owner of the directory is root and if the root (/) of the mounted partition has another owner, puppet will try to change it and I don't want this. I know that I can set the owner of that directory, but why should I care what's on the mounted partition? All I want to do is mount it. Is there a way to make puppet not to care about the permissions of the directory used as the mount point? This is what I'm using right now: define extra_mount_point( $device, $location = "/mnt", $fstype = "xfs", $owner = "root", $group = "root", $mode = 0755, $seltype = "public_content_t" $options = "ro,relatime,nosuid,nodev,noexec", ) { file { "${location}/${name}": ensure => directory, owner => "${owner}", group => "${group}", mode => $mode, seltype => "${seltype}", } mount { "${location}/${name}": atboot => true, ensure => mounted, device => "${device}", fstype => "${fstype}", options => "${options}", dump => 0, pass => 2, require => File["${location}/${name}"], } } extra_mount_point { "sda3": device => "/dev/sda3", fstype => "xfs", owner => "ciupicri", group => "ciupicri", $options = "relatime,nosuid,nodev,noexec", } In case it matters, I'm using puppet-0.25.4-1.fc13.noarch.rpm and puppet-server-0.25.4-1.fc13.noarch.rpm.

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• Windows Virtual Machines will not run

  - by jlego

  I'm trying to setup a few virtual machines to use for testing websites in the various old versions of IE. I had Microsoft Virtual PC working on an older machine using XP mode and 2 other VHD's from Microsoft that allowed me to test in IE6-IE8. I've recently gotten a new work machine and am trying to set up the VMs again for testing, however nothing seems to be working. Both the old and the new system run Windows 7 64-bit Ultimate with AMD processors. I downloaded Virtual PC & XP mode from here http://www.microsoft.com/windows/virtual-pc/download.aspx and go through the installation process. XP mode is installed, but when I try to run it it goes through the initial setup process only to fail when it is almost complete with the error "Cannot Complete Setup". (After googling I see that this might be a conflict with my processor) I download other VHD's from here http://www.microsoft.com/windows/virtual-pc/download.aspx in order to get the other versions of IE and try to set those up in Virtual PC as well. I click on them to start the machine and both Windows 7 with IE8 and Windows Vista with IE7 just hang at a black screen. I try to use Virtual Box instead, and I get Windows XP with IE6 running, but I have no internet connection in the VM. I try all different settings and try to google the correct settings but nothing seems to work. When I load the VM, XP shows that its found new hardware but it needs the drivers. One of these pieces of hardware is the network adapter, but I can't connect to the internet to download the driver in the guest OS. VirtualBox tells me I need to install extensions in order for things to function properly. I go through the installation process in the guest OS and restart the VM, however now XP is asking for validation and I can't access the VM. I try installing the other 2 OS (Vista & 7) but I get a BSOD right after the startup screen appears and the VM restarts itself. I'm getting so frustrated trying to make this work, I would really appreciate any assistance on getting the VMs up and running or any alternatives for testing websites in Internet Explorer.

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• HAProxy "503 Service Unavailable" for webserver running on a KVM virtual machine

  - by Menda

  I'm setting up a server with KVM (IP 192.168.0.100) and I have created inside of it one virtual machine using network bridging at 192.168.0.194. This virtual machine has an nginx instance running, which I can access from the server or from any computer computer in the internal network just typing in the browser http://192.168.0.194. However, I try configure HAProxy in the same server that hosts KVM and looking the status page of HAProxy it always shows the virtual machine as "DOWN". If I try from the server http://localhost, it should be the same than if I go to http://192.168.0.194. My goal is to build a reverse proxy, but I tried this little example and won't work. What am I doing bad? This is my config file in the server: # /etc/haproxy/haproxy.cfg global maxconn 4096 user haproxy group haproxy daemon defaults log global mode http option httplog option dontlognull retries 3 option redispatch maxconn 2000 contimeout 5000 clitimeout 50000 srvtimeout 50000 listen ServerStatus *:8081 mode http stats enable stats auth haproxy:haproxy listen Server *:80 mode http balance roundrobin cookie JSESSIONID prefix option httpclose option forwardfor option httpchk HEAD /check.txt HTTP/1.0 server mv1 192.168.0.194:80 cookie A check Thanks.

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