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• DKIM- Filter No Signature Data

  - by Vineet Sharma

  I have installed DKIM-Filter on Postfix after reading this tutorial http://www.unibia.com/unibianet/systems-networking/how-setup-domainkeys-identified-mail-dkim-postfix-and-ubuntu-server My email now has a DKIM signature but still it is landing in the SPAM folder. Here is the header Received-SPF: neutral (google.com: 69.164.193.167 is neither permitted nor denied by best guess record for domain of [email protected]) client-ip=69.164.193.167; Authentication-Results: mx.google.com; spf=neutral (google.com: 69.164.193.167 is neither permitted nor denied by best guess record for domain of [email protected]) [email protected]; dkim=hardfail (test mode) [email protected] Received: from promote.a2labs.in (localhost [127.0.0.1]) by promote.a2labs.in (Postfix) with ESMTPA id 34858530E8 for <[email protected]>; Mon, 28 Feb 2011 12:23:07 +0530 (IST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=a2labs.in; s=mail; t=1298875987; bh=bo+H1VYPIHMja2u7i1lnzr4k/j4Pe8iSf79bVw94XpI=; h=To:Subject:Message-ID:Date:From:Reply-To:MIME-Version: Content-Type:Content-Transfer-Encoding; b=nhTdlnUwo0iUJ92ycQzKSRjw 5Pfya0DJcJrAc8Mr2hIv8OLpgzBCzdOMWTGqR5nuUmAzgCGYBhYAM2XZwVxo9JG/iz7 oYKysmNQnskFx0TRyW3UOkDWcfHcPnCL6Y7fGzZWinmsyjsg47k+mKZg/e8jqlwTAMO PYKkt5pBz7SM0= Also my mail.err file shows Feb 28 12:17:03 ivineet dkim-filter[32181]: 1F788530E1: no signature data Feb 28 12:18:02 ivineet dkim-filter[32181]: 432BA530E2: no signature data How to fix it

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• Problems configuring an SSH tunnel to a Nexentastor appliance for use with headless Crashplan

  - by Rob Smallshire

  Problem I am attempting to configure an SSH tunnel to a NexentaStor appliance from either a Windows or Linux computer so that I can connect a Crashplan Desktop GUI to a headless Crashplan server running on the Nexenta box, according to these instructions on the Crashplan support site: Connect to a Headless CrashPlan Desktop. So far, I've failed to get a working SSH tunnel from from either either a Windows client (using Putty) or a Linux client (using command line SSH). I'm fairly sure the problem is at the receiving end with NexentaStor. A blog article - CrashPlan for Backup on Nexenta - indicates that it could be made to work only after "after enabling TCP forwarding in Nexenta in /etc/ssh/sshd_config" - although I'm not sure how to go about that or specifically what I need to do. Things I have tried Ensuring the Crashplan server on the Nexenta box is listening on port 4243 $ netstat -na | grep LISTEN | grep 42 127.0.0.1.4243 *.* 0 0 131072 0 LISTEN *.4242 *.* 0 0 65928 0 LISTEN Establishing a tunnel from a Linux host: $ ssh -L 4200:localhost:4243 admin:10.0.0.56 and then, from another terminal on the Linux host, using telnet to verify the tunnel: $ telnet localhost 4200 Trying ::1... Connected to localhost. Escape character is #^]'. with nothing more, although the Crashplan server should respond with something. From Windows, using PuTTY have followed the instructions on the Crashplan support site to establish an equivalent tunnel, but then telnet on Windows gives me no response at all and the Crashplan GUI can't connect either. The PuTTY log for the tunnelled connection shows reasonable output: ... 2011-11-18 21:09:57 Opened channel for session 2011-11-18 21:09:57 Local port 4200 forwarding to localhost:4243 2011-11-18 21:09:57 Allocated pty (ospeed 38400bps, ispeed 38400bps) 2011-11-18 21:09:57 Started a shell/command 2011-11-18 21:10:09 Opening forwarded connection to localhost:4243 but the telnet localhost 4200 command from Windows does nothing at all - it just waits with a blank terminal. On the NexentaStor server I've examined the /etc/ssh/sshd_config file and everything seems 'normal' - and I've commented out the ListenAddress entries to ensure that I'm listening on all interfaces. How can I establish a tunnel, and how can I verify that it is working?

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• Access All VLANS over XenServer Interface

  - by Garrett

  For my current setup, I have a physical NIC on a XenServer machine that receives traffic tagged with various VLAN IDs. I have a virtual machine that is running Vyatta that needs to be able to access both tagged and untagged traffic in order to route traffic. Here's the problem: 1) If I bind the NIC in XenCenter to the VM (which has no VLAN ID associated with it), the VM cannot see any tagged traffic. I have verified this using tcpdump. However, the tagged traffic is flowing into the XenServer machine perfectly fine. 2) I have more than 7 VLANs, so adding each VLAN as an interface within XenCenter isn't an option. 3) Even though tcpdump shows no tagged traffic coming in the VMs NIC, I have tried adding VLAN interfaces within Vyatta. This also doesn't work. I have tried using both Linux bridge and openvswitch setups and neither seem to work. I am running XenServer 6.0.3 free and Vyatta VC6.3. Please help! I've run out of ideas. I've googled for hours and can't seem to find anything.

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• SharePoint 2010 User Profile Synchronization

  - by manemawanna

  Hello, I'm completely new to working with SharePoint and Windows Server, but last week I was given a small brief to play with SharePoint 2010 to see how I got along with it. Anyway I've set up a SharePoint server and had a mess around to get some new sites and pages created etc, but I'm now looking to have a try at importing some AD groups. As part of this I've look at these tutorials, here and here. So far I've got through to the process of starting the User Profile Service which works fine, but when I get it starting the User Profile Synchronization service it sits on starting. But when I refresh the page or go to the monitoring section it shows it as aborted. Now I'm new to administering servers like I say and when I start the User Profile Synchronization service it tries to run as NT AUTHORITY\NETWORK SERVICE and asks for a password so I've been providing it with the admin password, now I'm not sure if this is part of the issue or not as I've checked the log files and they seem to say that it doesn't have permissions, which is fair enough, but I can't see how you can change the account even if I wanted to. So if anyone could help it would be appreciated, if you need any further information to help with an answer, just let me know.

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• Error In centos6 while compiling java classes,in tomcat6

  - by AJIT RANA

  I am newbie to Linux and Centos6. I bought server just now and want to deploy my web app in it. I am getting error while I am compiling my servlet classes. It showing me bash: javac: command not found when I try to compile my classes. But when I checked my class in '/usr/lib/jvm/java-1.6.0/bin .'I found my javac there. Then I checked javac with the help of command ./javac i got ERROR.. [root:ip_address.com]# ./javac There is insufficient memory for the Java Runtime Environment to continue. pthread_getattr_np Error occurred during initialization of VM java.lang.OutOfMemoryError: unable to create new native thread I followed the step as shown in "" Java outofmemoryerror when creating <100 threads "" which shows me command to get limits.. '[root:ipaddress.com]# ulimit -a core file size (blocks, -c) unlimited data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 278528 max locked memory (kbytes, -l) 32 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) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited' [root:ipaddress.com]# top bash: top: command not found link :- http://stackoverflow.com/q/12913857/1746764

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• Finding cause of TCP retransmission within a LAN

  - by Surreal

  Hello denizens of Server Fault I have an irritating problem with a LAN of about 100 computers, 2 Windows domain servers, and 12 VoIP phones. Since their installation around a year ago, every week or so, we notice a VoIP phone resetting itself - occasionally in the middle of a call. Simultaneously there are often signs of temporary loss of connection on computers: freezes in explorer while accessing network shares, errors in our administration software due to loss of connection to the database server. I have been doing some Wireshark monitoring on the connection between the VoIP PBX and the rest of the network. Wireshark picks up a clump of retransmitted TCP packets at the times when we record phone restarts. The Wireshark log shows about 2 clusters of retransmissions a day ranging from 5 packets to hundreds. Those in each cluster are mainly between the PBX and some set of the VoIP phones, but not always the same set. Often retransmissions at the same time are to phones connected to the same switch, but sometimes retransmissions occur together to phones at opposite ends of the network. There are usually some coincident retransmissions in passing TCP traffic, for example between client machines and the file servers. The spikes in retransmissions and phone resets do not correlate well with when the network is heavily loaded. They seem to occur slightly more during the day, but most in the evening, when traffic should be decreasing. They occur reasonably often late at night when most computers are turned off and traffic should be lowest. Do you have any ideas that might help diagnose the cause of problems like this? One thing I have not yet tried, but should have, is updating the firmware of all the switches.

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• USB To Serial under OpenSuse 11.3

  - by Lars

  I have a LogiLink USB-To-Serial adapter. This has the PL2303 chip inside. When I insert the device: [26064.927083] usb 7-1: new full speed USB device using uhci_hcd and address 9 [26065.076090] usb 7-1: New USB device found, idVendor=067b, idProduct=2303 [26065.076099] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [26065.076105] usb 7-1: Product: USB-Serial Controller [26065.076110] usb 7-1: Manufacturer: Prolific Technology Inc. [26065.079181] pl2303 7-1:1.0: pl2303 converter detected [26065.091296] usb 7-1: pl2303 converter now attached to ttyUSB0 So the device is recognized and the converter is attached to ttyUSB0. When I do screen /dev/ttyUSB0 9600 I get the error: bash: /dev/ttyUSB0: Permission denied So I went looking in the file permissions. ls -l from the /dev folder reports: crw-rw---- 1 root dialout 188, 0 2011-04-26 15:47 ttyUSB0 I added my user lars to the dialout group. When I use the commands groups under lars it shows that I'm in the group. Though I still recieve the permissions denied error, as lars, and as root. I'm trying to connect to a console cable to configure some Cisco switches. My OS is OpenSuse 11.3 x86_64 with kernel version 2.6.34.7-0.7-desktop.

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• Intel Wireless 4965AGN not achieving N throughput when connected to an Airport Express N network

  - by BenA

  I have an Intel Wireless WiFi Link 4965AGN adaptor in my laptop (HP Pavillion dv2000 series) which is connecting to a 5Ghz-only 802.11n network provided by an Apple Airport Express. The network is using WPA2 encryption. My desktop is also connected the Airport, via a Linksys WUSB600N USB adaptor. Both are running with the latest drivers, and the Airport is running the latest firmware. The Airport is also configured to use wide channels. The problem I have is that I never get throughput above 4MB/s when transferring files between the two machines. Even a pessimistic calculation shows a 270Mbps network as being capable of transfer rates at well above 10MB/s. I'm pretty sure I've isolated the issue to being the Intel adaptor, as wiring the desktop to the AP, and using the Linksys adaptor on the laptop immediately yielded speeds limited by the 100MB/s ethernet connection. I know that 802.11n is still a draft standard, and so mixing kit from different manufacturers can easily lead to poor results, but I was just wondering if anybody else out there has had success with this Intel adaptor on an N network? Or even better, connecting it to an Airport Express? Can anybody give me any advice on how to troubleshoot this issue? I should also mention that the Airport Express doesn't allow you to manually specify channels when running in N mode, and that I've been able to rule out interference from other Wireless LANs by scanning. There aren't any other 5GHz networks in my area. All ideas welcome! Update: A while later, I've just updated to the most recent drivers for both the Intel chip in the laptop, and the USB adaptor. Unfortunately this hasn't improved things :(. If anybody has any advice it would be be gratefully received.

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• Dual NVidia graphics cards in Ubuntu / xorg.conf mania

  - by John Zwinck

  I have two NVidia graphics cards: Quadro NVS 295 (PCI Express, dual DisplayPort outputs) GeForce FX 5200 (PCI, DVI and VGA outputs) I have three identical monitors, two on DisplayPort and one on DVI. I'm on Ubuntu Hardy (and cannot currently dist-upgrade for separate reasons). I use the "nvidia" driver. What's new is the GeForce card and the third monitor. I currently have the dual DisplayPort monitors working fine. Here are the display-related parts of my xorg.conf: Section "ServerLayout" Identifier "Default Layout" Screen "PCI-Express Screen" 0 0 # adding this makes X fail to start: Screen "PCI Screen" 0 Inputdevice "Generic Keyboard" Inputdevice "Configured Mouse" EndSection Section "Module" Load "glx" # not sure why/if this is needed EndSection Section "Monitor" Identifier "DELL 2408WFP" Option "DPMS" EndSection Section "Device" Identifier "NVIDIA Quadro NVS 295" Driver "nvidia" Option "RenderAccel" "true" Screen 0 BusID "PCI:2:0:0" EndSection Section "Device" Identifier "NVIDIA GeForce FX 5200" Driver "nvidia" Option "RenderAccel" "true" Screen 1 BusID "PCI:6:4:0" EndSection Section "Screen" Identifier "PCI-Express Screen" Device "NVIDIA Quadro NVS 295" Monitor "DELL 2408WFP" Defaultdepth 24 Option "TwinView" "True" Option "UseEdidFreqs" "True" Option "MetaModes" "1920x1200 +0+1200, 1920x1200 +0+0" EndSection Section "Screen" Identifier "PCI Screen" Device "NVIDIA GeForce FX 5200" Monitor "DELL 2408WFP" Defaultdepth 24 Option "TwinView" "True" Option "UseEdidFreqs" "True" Option "MetaModes" "1920x1200 +0+0" EndSection I use nvidia-settings to configure my monitors, and it does not show the second GPU. lspci, though, shows: 02:00.0 VGA compatible controller: nVidia Corporation Unknown device 06fd 06:04.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] Which is where I got the BusID settings for the two devices (when I just had one device, I didn't have any BusID listed...and adding the BusID hasn't broken anything). What am I missing? How can I make nvidia-settings show my second GPU so I can then configure its monitor?

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• gzip specific files

  - by byTheDrop

  for some reason these files are not gzipping on my apache server, chrome network tab shows this. Is there a specific directive I can add to htaccess to cache these files? Compressing the following resources with gzip could reduce their transfer size by about two thirds (~680.45KB): adae8bc4c3cb52cbe22358aaced87a72.css could save ~607B css_f91fa8d73b5e7661d6dcf9e58395e533.css could save ~59.54KB jquery.min.js could save ~37.27KB drupal.js could save ~6.15KB auto_image_handling.js could save ~6.72KB lightbox.js could save ~29.38KB superfish.js could save ~2.42KB jquery.bgiframe.min.js could save ~1011B jquery.hoverIntent.minified.js could save ~1.05KB nice_menus.js could save ~581B panels.js could save ~531B jquery.pngFix.js could save ~2.98KB jquery.cycle.all.min.js could save ~20.20KB views_slideshow.js could save ~8.76KB views_slideshow.js could save ~9.02KB wanderlust_custom_videos.js could save ~598B wl_helper.js could save ~777B extlink.js could save ~2.88KB cufon-yui.js could save ~11.89KB googleanalytics.js could save ~1.48KB swfobject.js could save ~6.65KB jquery.jcarousel.min.js could save ~10.19KB jcarousel.js could save ~6.01KB Akzidenz_Grotesk_BE_Super_800.font.js could save ~14.27KB Akzidenz_Grotesk_BE_Bold_700.font.js could save ~12.96KB Akzidenz_Grotesk_BE_Cn_400.font.js could save ~13.39KB SuperCondensed_500.font.js could save ~24.40KB FuturaBold_700.font.js could save ~26.19KB Futura_500.font.js could save ~57.70KB SuperGroteskB_500.font.js could save ~23.86KB jquery.cookie.js could save ~1.25KB wanderlust.js could save ~1.69KB sliderbottom.js could save ~442B jcarousellite_1.0.1.min.js could save ~4.60KB jcarousellite_control.js could save ~224B sitesdropdown.js could save ~1.09KB widgets.js could save ~50.13KB cufon-drupal.js could save ~599B swfobject_api.js could save ~348B ga.js could save ~24.02KB all.js could save ~124.67KB tweet_button.1347008535.html could save ~38.43KB xd_arbiter.php could save ~16.80KB xd_arbiter.php could save ~16.80KB

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• backupexec 12.5 not following symlinks on linux agent

  - by Peter Carrero

  Ok, we are at a loss here trying to backup a linux box to a backupexec server... we got a backupexec 12.5 server and a "backupexec for windows servers linux agent" (sigh) running on one of our linux boxes. When a backup runs, we get exceptions reported for our symbolic links. it says something like: BACKUP- \\<servername>\[ROOT] File \\<servername>\[ROOT]/<foldername>/<symlink> is in the backup selection list but was not found. Looking at the selection list, the symlink shows as a 1k file on BUE. Tools-Options-Backup has Backup files and directories by following symbolic links/junction points selected. These same checkboxes are selected on the Job Setup-Job Properties-Edit Template-Advanced Additionally, all the checkboxes are checkeced on Tools-Options-Linux, Unix, and Macintosh and on the Job Set-Job Properties-Edit Template-Linux, Unix, and Macintosh. These checkboxes read: "Preserve change time", "Follow local mount points", "Follow remote mount points", "Backup contents of soft-linked directories" and "Lock remote files", but apparently changing those options produce the same result. Any help on how to get BUE to make a proper backup would be greatly appreciated. Thanks.

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• SQL Server 2008 Express + Reporting Services on Windows 7

  - by TimothyP

  I'm trying to install SQL Server Express 2008 and Reporting Services on a x64 Windows 7 Machine for development purposes. I've installed SQL Server 2008 Express with the Microsoft Web Platform Installer I had to manually enable the SQL Server Browser in the Sql Server Configuration Manager and tried to enable the SQL Server Agent but that simply doesn't work. Keeps throwing an RPC error: "The remote procedure call failed. [0x800706be]". The start mode is set to Disabled and I cannot change it. Even though I selected the SQL Server Express with advanced services in the web platform installer I could not find any reference to SQL Server Reporting Services so I used the SQL Server Installation Center x64 application to "upgrade" to SQL Server Express 2008 with advanced services... this installed many things but still I couldn't find any reference to SQL Server Reporting Services other than an application called: "Reporting Services Configuration Manager" This opens up a dialog called "Reporting Services Configuration Connection" which is asking for a server name (shows the name of my machine) and a Find button. When I click the find button I get: "Unable to connect to the Reporting Server WMI provider. Details: Invalid Namespace". I found some references on the web to solve this problem, but they refer to a directory: "%ProgamFiles%\Microsoft SQL Server\MSRS10.SQL2008\Reporting Services\" which does not exist anywhere on my system. (The directories for SQL Server are there, but there is no Reporting Services directory anywhere). What am I doing wrong here? Wasn't the web platform installer supposed to handle all this? Thnx for any advice. PS: Most google results refer to 2005 vs 2008 problems, but I never had 2005 installed on this system, it's a newly installed development machine.

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• VMWare Server Windows 2008 NAT Problem

  - by David

  At my new job our workstations run Windows Server 2008. However, for the specific task for which I've been hired, I need to set up a couple Linux VMs. So I grabbed the free VMWare Server and created an Ubuntu image and a Slackware image. (The former to more closely mimic the production server, the latter because I'm more familiar with it.) For desktop security purposes I need to use NAT for the network access (I would have preferred bridged, but I'm told that would go against some policy here and my whole workstation would be sandboxed from the switch). However, I can't seem to get it working right. I can ping out from the VMs to LAN addresses as well as internet addresses. I can resolve DNS names. However, attempts to use a web browser or perform any kind of higher-level interaction like that just time out. Googling around yesterday led me to various workarounds that were similar, but didn't solve my specific situation. (For example, Norton firewall blocking the connection on the host, or even the Windows firewall.) I also saw some forum posts where people said it's a known issue with VMWare and Windows Server 2008 (and Windows 7). So far I haven't been able to find a suggestion that gets me past this roadblock. I'm really not very familiar with managing a Windows Server 2008 box, so it's possible there's just some security setting somewhere that I need to modify. Does anybody have any suggestions on where I should look? UPDATE: I'm now looking at the "Network and Sharing Center" on the host workstation and it shows "VMWare Network Adapter VMnet8" (which is what I'm using) as an "Unidentified network" with "No Internet access." Looks like I can't modify ICS under the group policy. Any suggestions on how to allow this connection to have internet access?

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• ssl_error_rx_record_too_long connection error with SSL site in Firefox

  - by Thomas

  I am trying to set up SSL in Apache but when I go to the server in Firefox I get the following error message: An error occurred during a connection to sludge.home. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long) My virtual host config file looks like this. <IfDefine SSL> <VirtualHost *:443> ServerName sludge.home SSLEngine on SSLCertificateFile /usr/local/apache/cert/server.crt SSLCertificateKeyFile /usr/local/apache/cert/server.pem SSLProtocol -SSLv2 SSL CipherSuite HIGH:!ADH:!EXP:!MD5:!NULL DocumentRoot "/usr/local/apache/htdocs" ServerAdmin [email protected] <Location /> AuthType Digest AuthName "private area" AuthDigestDomain / AuthDigestProvider file AuthUserFile /usr/local/apache/passwd/digest_pw Require valid-user </Location> <Directory /usr/local/apache/htdocs/bugz> AddHandler cgi-script .cgi Options +Indexes +ExecCGI DirectoryIndex index.cgi AllowOverride Limit FileInfo Indexes </Directory> <Directory /usr/local/apache/htdocs/bugzilla> AddHandler cgi-script .cgi Options +Indexes +ExecCGI DirectoryIndex index.cgi AllowOverride Limit FileInfo Indexes </Directory> <Directory /> Options FollowSymLinks AllowOverride None Order deny,allow Deny from all </Directory> <Directory "/usr/local/apache/htdocs"> Options Indexes FollowSymLinks Allow Override None Order allow,deny Allow from all </Directory> <IfModule dir_module> DirectoryIndex index.html </IfModule> <FilesMatch "^\.ht"> Order allow,deny Deny from all Satisfy All </FilesMatch> </VirtualHost> </IfDefine> A telnet to this server reveals that server is sending plain HTML back. Further more it seems as though mod_ssl is not loaded/working even though when I httpd -l it shows up as being statically compiled in. I have exhausted most avenues I can think of.

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• raid md device is not remove from memory, how to overcome this problem

  - by santhosha

  i create raid 10 , i removed two arrays form md11 one by one , after that i going to editing the contents those are mounted ( it will be not responding stage), after i try for remove arrays those are left it is shows device or resource busy ( is not removed from memory). i try to terminate process this is also not work, i absorve from 4 days resync will be 8.0% it can not modifying. cat /proc/mdstat Personalities : [raid1] [raid0] [raid6] [raid5] [raid4] [linear] [raid10] md11 : active raid10 sde1[3] sdj14 286743936 blocks 64K chunks 2 near-copies [4/1] [___U] [1:2:3:0] [=...................] resync = 8.0% (23210368/286743936) finish=289392.6min speed=15K/sec mdadm -D /dev/md11 /dev/md11: Version : 00.90.03 Creation Time : Sun Jan 16 16:20:01 2011 Raid Level : raid10 Array Size : 286743936 (273.46 GiB 293.63 GB) Device Size : 143371968 (136.73 GiB 146.81 GB) Raid Devices : 4 Total Devices : 2 Preferred Minor : 11 Persistence : Superblock is persistent Update Time : Sun Jan 16 16:56:07 2011 State : active, degraded, resyncing Active Devices : 1 Working Devices : 1 Failed Devices : 1 Spare Devices : 0 Layout : near=2, far=1 Chunk Size : 64K Rebuild Status : 8% complete UUID : 5e124ea4:79a01181:dc4110d3:a48576ea Events : 0.23 Number Major Minor RaidDevice State 0 0 0 0 removed 1 0 0 1 removed 4 8 145 2 faulty spare rebuilding /dev/sdj1 3 8 65 3 active sync /dev/sde1 umount /dev/md11 umount: /dev/md11: not mounted mdadm -S /dev/md11 mdadm: fail to stop array /dev/md11: Device or resource busy lsof /dev/md11 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME mount 2128 root 3r BLK 9,11 4058 /dev/md11 mount 5018 root 3r BLK 9,11 4058 /dev/md11 mdadm 27605 root 3r BLK 9,11 4058 /dev/md11 mount 30562 root 3r BLK 9,11 4058 /dev/md11 badblocks 30591 root 3r BLK 9,11 4058 /dev/md11 kill -9 2128 kill -9 5018 kill -9 27605 kill -9 30562 kill -3 30591 mdadm -S /dev/md11 mdadm: fail to stop array /dev/md11: Device or resource busy lsof /dev/md11 COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME mount 2128 root 3r BLK 9,11 4058 /dev/md11 mount 5018 root 3r BLK 9,11 4058 /dev/md11 mdadm 27605 root 3r BLK 9,11 4058 /dev/md11 mount 30562 root 3r BLK 9,11 4058 /dev/md11 badblocks 30591 root 3r BLK 9,11 4058 /dev/md11 cat /proc/mdstat Personalities : [raid1] [raid0] [raid6] [raid5] [raid4] [linear] [raid10] md11 : active raid10 sde1[3] sdj14 286743936 blocks 64K chunks 2 near-copies [4/1] [___U] [1:2:3:0] [=...................] resync = 8.0% (23210368/286743936) finish=289392.6min speed=15K/sec

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• SNMPD running but not listening for connections at random

  - by Lukasz

  OS: CentOS release 5.7 (Final) Net-SNMP: net-snmp-5.3.2.2-14.el5_7.1 (from RPM) Periodically my NMS notifies me that SNMP has gone down on this machine. The service is restored in between 10 to 30 minutes. My NMS also pings and check SSH and those services are not affected during the SNMP outage. SNMPD log file shows that it is working and apparently receiving packets (either from local agents from 127.0.0.1 or from my NMS at 172.16.37.37) however attempting to snmpwalk locally or from the NMS system fails with a timeout. I have 7 of these servers running mixture of CentOS 5.7 and RHEL 5.7 with this specific version of Net-SNMP installed from RPM - none of them have this issue except this one. 5 of the machines (including the NMS system and this problem server) are in the same rack connected using one switch. Restarting SNMPD does not fix the issue - it clears up by itself eventually. Any suggestions where I can begin diagnosing the issue? It's a closed subnet so IPTables is not used. SNMPD config below: # Following entries were added by HP Insight Management Agents at # Tue May 15 10:58:17 CLT 2012 dlmod cmaX /usr/lib64/libcmaX64.so rwcommunity public 127.0.0.1 rocommunity public 127.0.0.1 rwcommunity 3adRabRu 172.16.37.37 rocommunity 3adRabRu 172.16.37.37 rwcommunity 3adRabRu 172.16.37.36 rocommunity 3adRabRu 172.16.37.36 trapcommunity callmetraps trapsink 172.16.37.37 callmetraps trapsink 172.16.37.36 callmetraps syscontact Lukasz Piwowarek syslocation Santiago, Chile # ---------------------- END -------------------- agentAddress udp:161 com2sec rwlocal default public com2sec rolocal default public com2sec subnet default 3adRabRu group rwv2c v2c rwlocal group rov2c v2c rolocal group rov2c v2c subnet view all included .1 access rwv2c "" any noauth exact all all none access rov2c "" any noauth exact all none none

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• os x 10.4 Old, deleted user mail account problems

  - by Chris

  Hello- A while back I tried to add a user 'david' as a mail user on my OS X 10.4 server using dscl (I only had terminal access at the time, no ability to use workgroup manager). I could never get this account to work properly, so I deleted it. dscl . -list /Users no longer shows 'david' as an entry. I have since gained access via Workgroup Manager, and I am trying to re-create the 'david' account. Workgroup manager creates the account fine, along with an email account, which I can then log into via IMAP ('login david password' returns 'OK user logged in'). However, this mail account does not have an inbox, and I can not create one thru a mail client, IMAP or cyradm (they all say 'system I/O error'). When I re-delete this user, I can't find any record of him in any of the mail spool locations. Creating a user with any other name works fine (Inbox, mail access, everything). Any ideas on how I can get this user up and running again? -Chris P.S. - to create this user in the first place, I used dscl . create, then dscl . append /Users/david "some XML I found on the 'net" to add email privileges, if this helps...

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• Recovering a VHD after resizing it using VBoxManage

  - by tjrobinson

  I am using VirtualBox 4.1.18 and had a virtual machine running Windows 8 RC with a single VHD, which was initially sized at 25GB (too small!). After installing the OS and some applications I ran out of disk space so shut down the guest and then used this command to resize the VHD to 80GB: C:\Program Files\Oracle\VirtualBox> .\VBoxManage.exe modifyhd "D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vhd" --resize 81920 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% C:\Program Files\Oracle\VirtualBox> .\VBoxManage.exe showhdinfo "D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vhd" UUID: 03fb26e7-d8bb-49b5-8cc2-1dc350750e64 Accessible: yes Logical size: 81920 MBytes Current size on disk: 24954 MBytes Type: normal (base) Storage format: VHD Format variant: dynamic default In use by VMs: Windows 8 RC (UUID: a6e6aa57-2d3a-421b-8042-7aae566e3e0b) Location: D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vhd So far so good. However, when I started the guest up again I got the dreaded: Fatal: No bootable medium found! system halted If I boot into GParted it shows a single 80GB drive as "unallocated". The option to scan for and attempt to repair a filesystem doesn't find anything. I also tried cloning the VHD into a VDI file, just in case that magically fixed it: C:\Program Files\Oracle\VirtualBox> .\VBoxManage.exe clonehd "D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vhd" "D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vdi" --format VDI 0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100% Clone hard disk created in format 'VDI'. UUID: baf0c2c4-362f-4f6c-846a-37bb1ffc027b C:\Program Files\Oracle\VirtualBox> .\VBoxManage.exe showhdinfo "D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vdi" UUID: baf0c2c4-362f-4f6c-846a-37bb1ffc027b Accessible: yes Logical size: 81920 MBytes Current size on disk: 24798 MBytes Type: normal (base) Storage format: VDI Format variant: dynamic default In use by VMs: Windows 8 RC (UUID: a6e6aa57-2d3a-421b-8042-7aae566e3e0b) Location: D:\VirtualBox VMs\Windows 8 RC\Windows 8 RC.vdi Is there anything else I could try to recover the drive? No, I don't have a backup :( My host OS is Windows 7 64-bit.

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• SSH Tunnel for Remote Desktop via Intermediary Server Part II

  - by Mihai Todor

  I asked previously how to configure 2 SSH tunnels using an intermediary server in order to run Remote Desktop through them and I managed to make it work. Now, I'm trying to do the same, using the same machines, but in reverse order. Here's the setup: Windows 7 PC in a private network, sitting behind a firewall. Public access Linux server, which has access to the PC. Windows 7 laptop, at home, on which I wish to do Remote Desktop from the PC. I use Putty on the laptop to create a reverse tunnel from it to the Linux server: R60666 localhost:3389. I use Putty on the PC to create a regular tunnel from it to the Linux server: L60666 localhost:60666. I SSH to the Linux sever and I run telnet localhost 60666 and it seems to produce the expected output, as described in the debugging tips that I received here. I try to connect Remote Desktop from the PC to the laptop: localhost:60666. It asks for my username and password, I click OK and it locks my current session on the laptop (so I see the welcome screen on the laptop instead of my desktop), it shows the "Welcome" message in the Remote Desktop screen and then it just goes black. It doesn't disconnect, it doesn't provide any error and I'm not able to perform any actions in the Remote Desktop screen. I tried the same setup with a Windows XP laptop and I'm experiencing the same symptoms. I also tried to use different ports than 60666, but nothing changed. Does anybody have any idea what I'm doing wrong? Update: As pointed out by @jwinders, I'm not able to run telnet PC 3389 from the Linux server directly. Since Windows Firewall has a rule to allow all connections on port 3389, I have no idea what is blocking it. Fortunately, I'm able to create a SSH tunnel from the Linux machine to the PC ssh 3389:localhost:3389 'domain\user'@PC.

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• Problem with switch dell 6224

  - by Matias

  Hello, we just have upgraded the firmware of a dell 6224 power connect switch and it won't reload. These are the symptons: - I power up the switch having the serial cable connected to it and the switch outputs nothing. The configuration of the serial console is fine: 9600 bds, etc... In fact, before the upgrade, I was connected to the switch through the very same cable. - Reseting the switch with its reset pinhole does not reset the switch: the power and fan lights powers off while I keep pressed the pinhole, but the switch itself does not resets. - When I connect an UTP cable to one of the switches port, the green lights don't flash, but ''mii-tool eth0'' in my laptop shows there is link!! The only thing I see in the output, different from other upgrades I've done, is this line at the end: Erasing Boot Flash.....^^^^Done. Any help or idea will be more than welcome!! Thanks!! console#show version Image Descriptions image1 : image2 : Images currently available on Flash -------------------------------------------------------------------- unit image1 image2 current-active next-active 1 <none> 3.0.0.8 image2 image2 console#boot system image2 Activating image image2 .. console#update bootcode Update bootcode and reset (Y/N)? Updating boot code ... Extracting boot code from image... Erasing Boot Flash.....^^^^Done.

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• OpenVPN and TomatoVPN

  - by Bill Johnson

  Wondering if someone can help me with the following. I have updated my Linksys router with TomatoVPN and used the following config: Interface Type:TAP Protocol:UDP Port:1195 Firewall Custom Authorization Mode:Static Key I have then inserted the static key generated in OpenVPN saved and started the service. connect.ovpn. # Use the following to have your client computer send all traffic through your router # (remote gateway) remote (entered my DNS/DHCP servers external IP address here) port 1195 dev tap secret static.key.txt proto udp comp-lzo route-gateway 192.168.1.1 redirect-gateway float I've then placed my static key in a file in the same directory as your connect.ovpn (static.key.txt) Now OpenVPN is installed on a laptop that I use at home. I have plugged in the laptop to my home connection and started connect.ovpn The Local Area Connection is connected as 'Home Network 3' - and when I start OpenVPN it is connected as 'Local Area Connection 2' and this is showing as 'Unidentified Network' and it appears there is no network access. TAP-Win32 Adapter V9 appears to be the adaptors name and the IP and DNS properties are set to automatic. If I open up the OpenVPN GUI it shows an error message saying "Connecting to connect has failed". Looking at the error message behind this pop-up one line says "TCP/UDP Socket bind failed on local address [undef]:1195 Address already in use [WSAEADDRINUSE] Could anyone possibly help me further with this please?

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• high load average, high wait, dmesg raid error messages (debian nfs server)

  - by John Stumbles

  Debian 6 on HP proliant (2 CPU) with raid (2*1.5T RAID1 + 2*2T RAID1 joined RAID0 to make 3.5T) running mainly nfs & imapd (plus samba for windows share & local www for previewing web pages); with local ubuntu desktop client mounting $HOME, laptops accessing imap & odd files (e.g. videos) via nfs/smb; boxes connected 100baseT or wifi via home router/switch uname -a Linux prole 2.6.32-5-686 #1 SMP Wed Jan 11 12:29:30 UTC 2012 i686 GNU/Linux Setup has been working for months but prone to intermittently going very slow (user experience on desktop mounting $HOME from server, or laptop playing videos) and now consistently so bad I've had to delve into it to try to find what's wrong(!) Server seems OK at low load e.g. (laptop) client (with $HOME on local disk) connecting to server's imapd and nfs mounting RAID to access 1 file: top shows load ~ 0.1 or less, 0 wait but when (desktop) client mounts $HOME and starts user KDE session (all accessing server) then top shows e.g. top - 13:41:17 up 3:43, 3 users, load average: 9.29, 9.55, 8.27 Tasks: 158 total, 1 running, 157 sleeping, 0 stopped, 0 zombie Cpu(s): 0.4%us, 0.4%sy, 0.0%ni, 49.0%id, 49.7%wa, 0.0%hi, 0.5%si, 0.0%st Mem: 903856k total, 851784k used, 52072k free, 171152k buffers Swap: 0k total, 0k used, 0k free, 476896k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3935 root 20 0 2456 1088 784 R 2 0.1 0:00.02 top 1 root 20 0 2028 680 584 S 0 0.1 0:01.14 init 2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd 3 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 4 root 20 0 0 0 0 S 0 0.0 0:00.12 ksoftirqd/0 5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0 6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 7 root 20 0 0 0 0 S 0 0.0 0:00.16 ksoftirqd/1 8 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1 9 root 20 0 0 0 0 S 0 0.0 0:00.42 events/0 10 root 20 0 0 0 0 S 0 0.0 0:02.26 events/1 11 root 20 0 0 0 0 S 0 0.0 0:00.00 cpuset 12 root 20 0 0 0 0 S 0 0.0 0:00.00 khelper 13 root 20 0 0 0 0 S 0 0.0 0:00.00 netns 14 root 20 0 0 0 0 S 0 0.0 0:00.00 async/mgr 15 root 20 0 0 0 0 S 0 0.0 0:00.00 pm 16 root 20 0 0 0 0 S 0 0.0 0:00.02 sync_supers 17 root 20 0 0 0 0 S 0 0.0 0:00.02 bdi-default 18 root 20 0 0 0 0 S 0 0.0 0:00.00 kintegrityd/0 19 root 20 0 0 0 0 S 0 0.0 0:00.00 kintegrityd/1 20 root 20 0 0 0 0 S 0 0.0 0:00.02 kblockd/0 21 root 20 0 0 0 0 S 0 0.0 0:00.08 kblockd/1 22 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpid 23 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpi_notify 24 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpi_hotplug 25 root 20 0 0 0 0 S 0 0.0 0:00.00 kseriod 28 root 20 0 0 0 0 S 0 0.0 0:04.19 kondemand/0 29 root 20 0 0 0 0 S 0 0.0 0:02.93 kondemand/1 30 root 20 0 0 0 0 S 0 0.0 0:00.00 khungtaskd 31 root 20 0 0 0 0 S 0 0.0 0:00.18 kswapd0 32 root 25 5 0 0 0 S 0 0.0 0:00.00 ksmd 33 root 20 0 0 0 0 S 0 0.0 0:00.00 aio/0 34 root 20 0 0 0 0 S 0 0.0 0:00.00 aio/1 35 root 20 0 0 0 0 S 0 0.0 0:00.00 crypto/0 36 root 20 0 0 0 0 S 0 0.0 0:00.00 crypto/1 203 root 20 0 0 0 0 S 0 0.0 0:00.00 ksuspend_usbd 204 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd 205 root 20 0 0 0 0 S 0 0.0 0:00.00 ata/0 206 root 20 0 0 0 0 S 0 0.0 0:00.00 ata/1 207 root 20 0 0 0 0 S 0 0.0 0:00.14 ata_aux 208 root 20 0 0 0 0 S 0 0.0 0:00.01 scsi_eh_0 dmesg suggests there's a disk problem: .............. (previous episode) [13276.966004] raid1:md0: read error corrected (8 sectors at 489900360 on sdc7) [13276.966043] raid1: sdb7: redirecting sector 489898312 to another mirror [13279.569186] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 [13279.569211] ata4.00: irq_stat 0x40000008 [13279.569230] ata4.00: failed command: READ FPDMA QUEUED [13279.569257] ata4.00: cmd 60/08:00:00:6a:05/00:00:23:00:00/40 tag 0 ncq 4096 in [13279.569262] res 41/40:00:05:6a:05/00:00:23:00:00/40 Emask 0x409 (media error) <F> [13279.569306] ata4.00: status: { DRDY ERR } [13279.569321] ata4.00: error: { UNC } [13279.575362] ata4.00: configured for UDMA/133 [13279.575388] ata4: EH complete [13283.169224] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 [13283.169246] ata4.00: irq_stat 0x40000008 [13283.169263] ata4.00: failed command: READ FPDMA QUEUED [13283.169289] ata4.00: cmd 60/08:00:00:6a:05/00:00:23:00:00/40 tag 0 ncq 4096 in [13283.169294] res 41/40:00:07:6a:05/00:00:23:00:00/40 Emask 0x409 (media error) <F> [13283.169331] ata4.00: status: { DRDY ERR } [13283.169345] ata4.00: error: { UNC } [13283.176071] ata4.00: configured for UDMA/133 [13283.176104] ata4: EH complete [13286.224814] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 [13286.224837] ata4.00: irq_stat 0x40000008 [13286.224853] ata4.00: failed command: READ FPDMA QUEUED [13286.224879] ata4.00: cmd 60/08:00:00:6a:05/00:00:23:00:00/40 tag 0 ncq 4096 in [13286.224884] res 41/40:00:06:6a:05/00:00:23:00:00/40 Emask 0x409 (media error) <F> [13286.224922] ata4.00: status: { DRDY ERR } [13286.224935] ata4.00: error: { UNC } [13286.231277] ata4.00: configured for UDMA/133 [13286.231303] ata4: EH complete [13288.802623] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 [13288.802646] ata4.00: irq_stat 0x40000008 [13288.802662] ata4.00: failed command: READ FPDMA QUEUED [13288.802688] ata4.00: cmd 60/08:00:00:6a:05/00:00:23:00:00/40 tag 0 ncq 4096 in [13288.802693] res 41/40:00:05:6a:05/00:00:23:00:00/40 Emask 0x409 (media error) <F> [13288.802731] ata4.00: status: { DRDY ERR } [13288.802745] ata4.00: error: { UNC } [13288.808901] ata4.00: configured for UDMA/133 [13288.808927] ata4: EH complete [13291.380430] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 [13291.380453] ata4.00: irq_stat 0x40000008 [13291.380470] ata4.00: failed command: READ FPDMA QUEUED [13291.380496] ata4.00: cmd 60/08:00:00:6a:05/00:00:23:00:00/40 tag 0 ncq 4096 in [13291.380501] res 41/40:00:05:6a:05/00:00:23:00:00/40 Emask 0x409 (media error) <F> [13291.380577] ata4.00: status: { DRDY ERR } [13291.380594] ata4.00: error: { UNC } [13291.386517] ata4.00: configured for UDMA/133 [13291.386543] ata4: EH complete [13294.347147] ata4.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 [13294.347169] ata4.00: irq_stat 0x40000008 [13294.347186] ata4.00: failed command: READ FPDMA QUEUED [13294.347211] ata4.00: cmd 60/08:00:00:6a:05/00:00:23:00:00/40 tag 0 ncq 4096 in [13294.347217] res 41/40:00:06:6a:05/00:00:23:00:00/40 Emask 0x409 (media error) <F> [13294.347254] ata4.00: status: { DRDY ERR } [13294.347268] ata4.00: error: { UNC } [13294.353556] ata4.00: configured for UDMA/133 [13294.353583] sd 3:0:0:0: [sdc] Unhandled sense code [13294.353590] sd 3:0:0:0: [sdc] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [13294.353599] sd 3:0:0:0: [sdc] Sense Key : Medium Error [current] [descriptor] [13294.353610] Descriptor sense data with sense descriptors (in hex): [13294.353616] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 [13294.353635] 23 05 6a 06 [13294.353644] sd 3:0:0:0: [sdc] Add. Sense: Unrecovered read error - auto reallocate failed [13294.353657] sd 3:0:0:0: [sdc] CDB: Read(10): 28 00 23 05 6a 00 00 00 08 00 [13294.353675] end_request: I/O error, dev sdc, sector 587557382 [13294.353726] ata4: EH complete [13294.366953] raid1:md0: read error corrected (8 sectors at 489900544 on sdc7) [13294.366992] raid1: sdc7: redirecting sector 489898496 to another mirror and they're happening quite frequently, which I guess is liable to account for the performance problem(?) # dmesg | grep mirror [12433.561822] raid1: sdc7: redirecting sector 489900464 to another mirror [12449.428933] raid1: sdb7: redirecting sector 489900504 to another mirror [12464.807016] raid1: sdb7: redirecting sector 489900512 to another mirror [12480.196222] raid1: sdb7: redirecting sector 489900520 to another mirror [12495.585413] raid1: sdb7: redirecting sector 489900528 to another mirror [12510.974424] raid1: sdb7: redirecting sector 489900536 to another mirror [12526.374933] raid1: sdb7: redirecting sector 489900544 to another mirror [12542.619938] raid1: sdc7: redirecting sector 489900608 to another mirror [12559.431328] raid1: sdc7: redirecting sector 489900616 to another mirror [12576.553866] raid1: sdc7: redirecting sector 489900624 to another mirror [12592.065265] raid1: sdc7: redirecting sector 489900632 to another mirror [12607.621121] raid1: sdc7: redirecting sector 489900640 to another mirror [12623.165856] raid1: sdc7: redirecting sector 489900648 to another mirror [12638.699474] raid1: sdc7: redirecting sector 489900656 to another mirror [12655.610881] raid1: sdc7: redirecting sector 489900664 to another mirror [12672.255617] raid1: sdc7: redirecting sector 489900672 to another mirror [12672.288746] raid1: sdc7: redirecting sector 489900680 to another mirror [12672.332376] raid1: sdc7: redirecting sector 489900688 to another mirror [12672.362935] raid1: sdc7: redirecting sector 489900696 to another mirror [12674.201177] raid1: sdc7: redirecting sector 489900704 to another mirror [12698.045050] raid1: sdc7: redirecting sector 489900712 to another mirror [12698.089309] raid1: sdc7: redirecting sector 489900720 to another mirror [12698.111999] raid1: sdc7: redirecting sector 489900728 to another mirror [12698.134006] raid1: sdc7: redirecting sector 489900736 to another mirror [12719.034376] raid1: sdc7: redirecting sector 489900744 to another mirror [12734.545775] raid1: sdc7: redirecting sector 489900752 to another mirror [12734.590014] raid1: sdc7: redirecting sector 489900760 to another mirror [12734.624050] raid1: sdc7: redirecting sector 489900768 to another mirror [12734.647308] raid1: sdc7: redirecting sector 489900776 to another mirror [12734.664657] raid1: sdc7: redirecting sector 489900784 to another mirror [12734.710642] raid1: sdc7: redirecting sector 489900792 to another mirror [12734.721919] raid1: sdc7: redirecting sector 489900800 to another mirror [12734.744732] raid1: sdc7: redirecting sector 489900808 to another mirror [12734.779330] raid1: sdc7: redirecting sector 489900816 to another mirror [12782.604564] raid1: sdb7: redirecting sector 1242934216 to another mirror [12798.264153] raid1: sdc7: redirecting sector 1242935080 to another mirror [13245.832193] raid1: sdb7: redirecting sector 489898296 to another mirror [13261.376929] raid1: sdb7: redirecting sector 489898304 to another mirror [13276.966043] raid1: sdb7: redirecting sector 489898312 to another mirror [13294.366992] raid1: sdc7: redirecting sector 489898496 to another mirror although the arrays are still running on all disks - they haven't given up on any yet: # cat /proc/mdstat Personalities : [raid1] [raid0] md10 : active raid0 md0[0] md1[1] 3368770048 blocks super 1.2 512k chunks md1 : active raid1 sde2[2] sdd2[1] 1464087824 blocks super 1.2 [2/2] [UU] md0 : active raid1 sdb7[0] sdc7[2] 1904684920 blocks super 1.2 [2/2] [UU] unused devices: <none> So I think I have some idea what the problem is but I am not a linux sysadmin expert by the remotest stretch of the imagination and would really appreciate some clue checking here with my diagnosis and what do I need to do: obviously I need to source another drive for sdc. (I'm guessing I could buy a larger drive if the price is right: I'm thinking that one day I'll need to grow the size of the array and that would be one less drive to replace with a larger one) then use mdadm to fail out the existing sdc, remove it and fit the new drive fdisk the new drive with the same size partition for the array as the old one had use mdadm to add the new drive into the array that sound OK?

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• Hudson plugin problem

  - by user27644

  Hi. I've created almost the same plugin as JobTypeColumn. There is only one difference - it shows job description instead of job type. But after i can't add this column to my list view. I have an NullPointerException after i edited my config.xml manually. java.lang.NullPointerException at hudson.model.Descriptor.newInstancesFromHeteroList(Descriptor.java:626) at hudson.util.DescribableList.rebuildHetero(DescribableList.java:164) at hudson.model.ListView.submit(ListView.java:262) at hudson.model.View.doConfigSubmit(View.java:484) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:185) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:101) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:54) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:74) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:492) at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:180) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:492) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:408) at org.kohsuke.stapler.Stapler.service(Stapler.java:117) at javax.servlet.http.HttpServlet.service(HttpServlet.java:45) at winstone.ServletConfiguration.execute(ServletConfiguration.java:249) at winstone.RequestDispatcher.forward(RequestDispatcher.java:335) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:378) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:94) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:304) at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:31) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:97) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:86) at winstone.FilterConfiguration.execute(FilterConfiguration.java:195) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:47) at winstone.FilterConfiguration.execute(FilterConfiguration.java:195) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at winstone.FilterConfiguration.execute(FilterConfiguration.java:195) at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368) at winstone.RequestDispatcher.forward(RequestDispatcher.java:333) at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244) at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150) at java.lang.Thread.run(Unknown Source)

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• error in php not logging or displaying

  - by Grant M

  I can not get any errors to display on screen on write to a log file. When check phpinfo() print out I have same value of master a local for display_errors On display_startup_errors On error_log /var/log/php.log error_reporting E_ALL & ~E_NOTICE log_errors On log_errors_max_len ls -l /var/log/php.log is -rw-rw-rw- 1 root root 0 Jun 21 07:47 /var/log/php.log for /var and /varlog drwxrwxrwx 23 root root 4096 Jun 2 11:13 var when there is an error in the code the page the browsers shows nothing and browser says there is no source for the page. Any suggestions of where else to look or change to errors to appear somewhere (anywhere would be good) edit: my error script is now <?php ini_set('display_errors', 1); error_reporting(E_ALL); echo "print from error.php 2 "; error //print from erroerror to cuase logging to happen. ?> this will print on display and to log Notice: Use of undefined constant error - assumed 'error' in /var/www/piku_dev2/error.php on line 7 but if I put garbage like #@$%$ on the error line I get nor error messages anywhere. Edit2: The problem turned out to in the httpd.conf file. I don't know what it was yet as it was fixed y someone else.

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• Remote Desktop to Server 2008R2 fails from one particular Win7 client

  - by Jesse McGrew

  I have a VPS running Windows Web Server 2008 R2. I'm able to connect using Remote Desktop from my home PC (Windows 7), personal laptop (Windows 7), and work laptop (Windows XP). However, I cannot connect from my work PC (Windows 7). I receive the error "The logon attempt failed" in the RDP client, and the server event log shows "An account failed to log on" with this explanation: Subject: Security ID: NULL SID Account Name: - Account Domain: - Logon ID: 0x0 Logon Type: 3 Account For Which Logon Failed: Security ID: NULL SID Account Name: username Account Domain: hostname Failure Information: Failure Reason: Unknown user name or bad password. Status: 0xc000006d Sub Status: 0xc0000064 Process Information: Caller Process ID: 0x0 Caller Process Name: - Network Information: Workstation Name: JESSE-PC Source Network Address: - Source Port: - Detailed Authentication Information: Logon Process: NtLmSsp Authentication Package: NTLM Transited Services: - Package Name (NTLM only): - Key Length: 0 I can connect from the offending work PC if I start up Windows XP Mode and use the RDP client inside that. The server is part of a domain but my account is local, so I'm logging in using a username of the form hostname\username. None of the clients are part of a domain. The server uses a self-signed certificate, and connecting from home I get a warning about that, but connecting from work I just get the logon error.

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