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• In APC+PHP, how much RAM is too much? Is it okay to set apc.shm_size to many GB?

  - by Jeremy Clarke

  On our server we have a LOT of RAM for our traffic levels (16GB). The HTTP processes regularly eat up all CPU and need to be restarted without even getting close to using swap memory, so I'm looking for ways to spend RAM to ease the load on Apache (and/or help the seperate MySQL server which may be breaking Apache). I have many WordPress installs on the HTTPD instance so APC sometimes uses as much as 900MB of ram (according to the apc.php charts). Just in case I have apc.shm_size set to 1600MB which is more than it needs but not more than I can spare. This means there is usually lots of extra RAM available to APC but also very little turnover and fragmentation is never more than 1%. Is this dangerous? Should I be slimming down APC to less than 1GB just on principle? Should I be expecting some turnover within APC in the name of bringing it's overall footprint down? Having so much memory devoted to APC means that in top/htop every single httpd process shows ~1.9GB in the VIRT memory column. Obviously this is shared memory and not used per-process, but could it be hurting our server? NOTE: The problem with the server remains unclear but the effect is that about 60 times a day all 8 CPU's fill up to 100% and everything stops working until Monit sees that Apache is broken and restarts it (Monin also saves the MySQL server). I'm not sure if APC is even part of the problem but I'm trying to optimize everything just in case.

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• yum fails installing php53-devel.x86_64

  - by coding_hero

  I need to recompile php on a Fedora server because I need to use the --enable-zip flag. When trying to install the devel package, I get the following message. This is after a 'yum clean all': yum install php53-devel.x86_64 Loaded plugins: rhnplugin, security rhel-x86_64-server-5 | 1.4 kB 00:00 rhel-x86_64-server-5/primary | 4.9 MB 00:00 rhel-x86_64-server-5 14161/14161 Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package php53-devel.x86_64 0:5.3.3-13.el5_8 set to be updated --> Processing Dependency: php53 = 5.3.3-13.el5_8 for package: php53-devel --> Finished Dependency Resolution php53-devel-5.3.3-13.el5_8.x86_64 from rhel-x86_64-server-5 has depsolving problems --> Missing Dependency: php53 = 5.3.3-13.el5_8 is needed by package php53-devel-5.3.3-13.el5_8.x86_64 (rhel-x86_64-server-5) Error: Missing Dependency: php53 = 5.3.3-13.el5_8 is needed by package php53-devel-5.3.3-13.el5_8.x86_64 (rhel-x86_64-server-5) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest Output of 'yum repolist': # yum repolist Loaded plugins: rhnplugin, security repo id repo name status rhel-x86_64-server-5 Red Hat Enterprise Linux (v. 5 for 64-bit x86_64) enabled: 14,161 repolist: 14,161

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• What is going on when I can't access an SMB server share (not accessible error) until I run cmdkey to delete the credential?

  - by Warren P

  I have a network connection share issue. The first connection works, and seems to stay connected for at least a few hours. However, after each time my windows 7 PC reboots, it can no longer form a network connection to the shared folder, nor browse to it, until I not only unmap and remap the mapped drive, but also, I have to use cmdkey to delete the stored credentials like this: cmdkey /delete:Domain:target=HOSTNAME My work PC is on a domain, and I am not the IT administrator, but I'm curious if there is anything I can do to investigate this issue. Any settings in registry or group policy that I could examine to see why the first connection works, but each subsequent attempt (once a stored credential exists) to browse or use the connection, fails with a connection error saying it is "not accessible", like this: I do not even get any error until at least several minutes go by. THe first thing I see is a window frozen and empty, and then I get this error: This has happened when connecting to a share on a DROBO device, and on a share which is not on the domain, but which was a Microsoft Home Server. I wonder if there's something broken in WIndows 7 professional with regards to connecting to non-domain shares when an active directory domain controller exists, and a particular workstation is joined to a domain? The problem only occurs if I click "remember credentials". It is not fixed by any amount of working with net use. Usingcmdkey to delete all stored credentials for the host is the only way to get back in, and it affects all non-domain shared folders. Update I'm hoping there are some registry locations I could check that could be misconfigured in some way that might explain why SMB/CIFS stored credentials for non-domain systems seem to be auto-invalidated in this weird way. Knowing how whacko Microsoft Windows domain and security handling is sometimes, this could be some kind of stupid "feature".

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• SBS2011 Standard DNS suddenly not resolving some domains

  - by Matt

  Suddenly today I am unable to resolve common domains like serverfault.com, facebook.com; but other domains like google.com, cnn.com work fine. This is on a client machine (Win7 Pro) connected to an SBS2011 Standard domain. The only DNS server is the SBS2011 server. The same domains work fine on all client PCs I have tried, and the same ones do not work. Using nslookup, I get 'no such domain' errors for facebook.com, and the correct DNS entries for the ones that do work. When I add Google's Public DNS to my client PC as a backup (primary = local SBS server, secondary = 8.8.8.8), everything works fine for my client PC, but querying from the SBS server directly or from other client PCs are broken (so I don't believe it's a firewall issue). My main question is how can I see what servers the SBS2011 server queries if it doesn't know about a domain? There is nothing in our firewall logs that say it blocked any DNS-based packets, but I also wanted to query based on the IP/FQDN on the servers that the SBS server was likely to contact to find out about facebook.com for example. Update 23/05/2012: It appears DNS is working again this morning for the affected websites. Both the DC on its own and all client PCs can once again access the websites that were not loading last night, as well as the websites that were working. I haven't changed anything overnight, so it appears that there was some kind of temporary glitch, but I can't understand what would have caused it on the network.

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• Simple electric DC question. Current consumption

  - by Bobb

  Suppose you have DC power supply and a consumer connected to it (i.e. computer PSU and a hard drive). Suppose PSU which was supplied with the consumer has output 5V 1A. So I assume that the consumer should not consume more than 1A. Suppose the original PSU is broken now and I want to replace it with the one I have which is 5V 10A. My guess is that current is something which depends on the consumer. So if the consumer consumes normally 1A then it will not consume more than that even if it is connected to 10A PSU. In other word - am I right assuming that the consumer will not burn out being connected to a power supply with higher current output? P.S. my understanding is that voltage is something independent from the consumer. If you give it higher voltage it will burn (voltage is from PSU to the consumer). However current must be in opposite - consumer sucks as much current as it need not as much as PSU can provide (of course given that max PSU current is greater than the consumer needs)

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• All of the NTFS hard links disappear, where are hardlinks stored on disk and how to recover them?

  - by Osiris

  This is Windows 7 x64 sp1 on a NTFS file system. All hardlinks within C:\Windows\System32 folder disappear, and the Windows can't boot, because even the osloader, C:\Windows\System32\boot\Winload.exe also disappeared. Nevertheless, the original files are still located in the corresponding C:\Windows\winsxs folders. After booting into the Recovery Environment, and copied one Winload.exe (x64) from other folder, Windows gave an error pointing out that "ntoskrnl.exe is corrupted or missing...its file digital signature cannot be verified" In trying to boot in Safe Mode, the message above was shown after a screen prompting "Loaded \Windows\system32\config\system" Because at this early booting stage, smss.exe was still not loaded, so there is not any dumping and logs. Based on my study, ntoskrnl.exe depends on the following files: C:\\windows\\system32\\PSHED.DLL C:\\Windows\\System32\\hal.dll C:\\Windows\\System32\\kdcom.dll C:\\Windows\\System32\\clfs.sys C:\\Windows\\System32\\ci.dll All those files above are copied from their corresponding folders and verified their md5 with a well-operating Windows 7 x64 SP1. But the booting error is still the same: "ntoskrnl.exe is corrupted or missing..." **Background:** Before the reboot, there was an windows update going on. Then something unknown happen, almost all processes were broken to run, including the windows task manager, taskmgr.exe. After mount the hard disk to other computer, it seems that all hardlinks within C:\Windows\System32 folder were gone. I tried several data recovery software, but they are not be able to find those disappeared NTFS hard links. So the question is: Where are information about those hard links stored? And how to recover them? Are they depend on some windows service or stored in the registry?

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• I need a driver for my Cardbus USB 2.0 card

  - by Carl

  The picture and details of the card are here: http://www.ht-link.com/en/ProductView.asp?ID=106 The Windows drivers for this don't work right. I tried them on my previous laptop, and then installed the ones off their included CD. (Note that the systems requirements includes a CD-ROM drive...) I have a new laptop, and lost the CD. The website that lists the drivers is broken - the download links don't work. It is here: http://www.ht-link.com/en/DownView.asp?ID=10 I need the very first link - The Win XP drivers for the HT-112NEC. The company does not reply to my e-mails. I've tried searching Google for other sources for the driver (I didn't bother with those sites that want me to install driver detection software or create a log-in for their site). [Here's the problem I am getting using the drivers Windows XP SP3 installs: When I plug in my USB 2.0 hard-disk adapter, a USB Mass Storage Device entry is added in the Device Manager, but there is no entry under Disk Drives, and a drive letter is not assigned, so I can't access the driver. Like I said, this card didn't work without their special drivers on my other laptop, either.]

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• Using awk to split text file every 10,000 lines

  - by Sneaky Wombat

  I have a large gzip'd text file. I'd like to something like: zcat BIGFILE.GZ | awk (snag 10,000 lines and redirect to...)|gzip -9 smallerPartFile.gz the awk part up there, I basically want it to take 10,000 lines and send it to gzip and then repeat until all lines in the original input file are consumed. I found a script that claims to do this, but when I run it on my files and then diff the original to the ones that were split and then merged, lines are missing. So, something is wrong with the awk part and I'm not sure what part is broken. Here's the code. Can someone tell me why this doesn't yield a file that can be split and merged and then diff'd to the original successfully? # Generate files part0.dat.gz, part1.dat.gz, etc. # restore with: zcat foo* | gzip -9 > restoredFoo.sql.gz (or something like that) prefix="foo" count=0 suffix=".sql" lines=10000 # Split every 10000 line. zcat /home/foo/foo.sql.gz | while true; do partname=${prefix}${count}${suffix} # Use awk to read the required number of lines from the input stream. awk -v lines=${lines} 'NR <= lines {print} NR == lines {exit}' >${partname} if [[ -s ${partname} ]]; then # Compress this part file. gzip -9 ${partname} (( ++count )) else # Last file generated is empty, delete it. rm -f ${partname} break fi done

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• Notebook display problem (multiplication)

  - by SubniC

  Hi, I'm having some troubles with the display of a LG E500 notebook. The thing is that without any known reason the display starts to show the screen divided in eigth parts and each part show the display image as if I had a matrix of eigth displays :) I thought it could be some kind of refresh rate problem or driver related, but it is happening at boot-up as well and the BIOS. I got the computer completely unassambled yesterday and I check all the wires and connectors looking for something broken or unconected, but without luck... You can see a picture here of the problem (sorry for the low quality, but I think it illustrate the problem. EDIT 1: I uploaded a new pictrue, here you cans ee the problem better :) There are three horizontal lines that you can see just between the windows. You can see the grey line at the first moment you turn on the computer and the after the duplicated screens show up just like if they where arranged over a grid (over the horizontal lines...) I hope it makes any sense. Do you know what could be happening? or can you tell me what would you do? Thank you very much for your help.

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• Imac g5 with no OS nor CD drive

  - by sinekonata

  What I want: Ubuntu on a g5 Imac. What I have: An empty PC (Intel g5 17" Imac) with broken CD drive. Its model is A1173. This PC with Ubuntu 12.04 and an old Vista partition. a usb flash drive. Problems: No CD means the only boot Drive I could use is USB. There are no BIOS on Macs so I can't set boot settings or even see if it detects my USB drive. When I start the machine and press ALT the first and only thing I see is an old corrupted winXP partition and not a single option or additional information. So assuming blindly that the Mac hardware/firmware works normally, I don't have any Mac OS to use any of the tools that I found on different tutorials for building a bootable .img drive for macs. I can't find much software on Linux/Windows to substitute to those tools, for example among others converting an .iso file (win/linux) to .img (mac I guess). Which makes me think that the scenario where someone like me has Mac hardware but no Mac OS is extremely rare. So other than finding someone that has a Mac I have no solution. So I ask what would you do? the only thing is it should not involve any money (I know mac soft is rarely free) which also excludes getting any MacOS unless I can use a free macos.img for VM or restore the original Mac for free. Thank you

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• Host system resets (crashes) when using VMWare or VirtualBox and 64-bit guest systems

  - by sinni800

  I have been trying to install virtual systems on VMWare for a while now and encountered strange behaviour from my PC. The behaviour is as follows: On "automatic" virtualization mode it either outputs a cryptic error message (can MAYBE give later, if I can reproduce) right on startup (before even the BIOS) or it resets the complete HOST system (blackscreen, bios...) If I install a Windows XP on it it works well on "binary translation" mode. If I try installing Linux on it, in "binary translation" mode it crashes 1 or 2 seconds after I hit enter on the GRUB selection screen (after the first page of kernel messages rolled in) Using VirtualBox it crashes right in the BIOS. It gave me a Bluescreen though! 0x00000101: CLOCK_WATCHDOG_TIMEOUT: a clock interrupt was not received on a secondary processor within the allocated time interval NEWS: I tried VirtualBox again and it did not completely crash the computer this time. It gave me a critical error and a log file: http://pastebin.com/yKZSDs91 In conclusion, it will crash instantly if VT-x is activated. If not, it seemingly only crashed if I try to install something with 64 bits. Another update: Yes, it ONLY crashes when the guest is 64 bit! What I tried: Reinstalling Windows (my Windows installation was quite broken so it seemed natural. Didn't work though.) New BIOS What I am certain of: Virtualization extensions are activated in the BIOS What my computer specs are: ASUS P8P67 LE mainboard, newest BIOS/EFI firmware Intel Core i5 2500k Ati Radeon HD 5770 16 GB Corsair 1333mhz DDR3 RAM, 4 X 4 GB

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• Using keyboard disables touchpad left button for a second on Acer laptop in Windows 8.1

  - by Robert Kilar

  The problem is present in the whole system not only in games: desktop, chrome, games, everywhere. When I press any "input key" on a keyboard for example in desktop I can't select the file by left mouse button OR by tapping the touchpad for about one second(right button works immediately). Later on the LMB works well. There is NO delay, button is just deactivated for a second. In games that means that when I run I cannot shoot for example. When I switched LMB and RMB functions in windows control panel still the LMB is getting disabled and RMB works fine. By "input key" I mean letter or a number, keys like Alt, CapsLock, Ctrl does not affect touchpad. I do not remember that problem when I used Windows 7. USB mouse works like it should. The problem existed when I was using Elantech touchpad driver and after I uninstalled it and used Windows 8.1 generic driver. EDIT I installed the Elantech drivers and set values to 0 at every disable... key. But the problem is still present. EDIT 2 THE LAPTOP IS Acer V3-571G I have turned off disabling function in touchpad but it did not fix it. I know that touchpad is NOT broken down. Turned on the animated touchpad icon of elantech drivers and put it on the task bar(on a picture) When I type the letter and press the LMB the dynamic icon displays the click but it is ignored.

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• ssh initial prompt hangs for 10 minutes but console login and initial prompt is very responsive - why?

  - by rfreytag

  I have been running an ESXi 4.0 server for months with a couple of WinServer2003 and several Ubuntu Server 10.4 VMs. The performance has been impressive on 6GB i7 Asus P6T hardware. Suddenly, a week ago, ssh logins to the Ubuntu VMs take 10 minutes when connecting over the LAN (over a WAN the connection (pipe) is broken long before that). When logging in to these VMs the password prompt arrives immediately, and failed passwords are responded to immediately. But the moment I log in then the shell prompt appears and I hang for many minutes. Sometimes the connection hangs before the shell prompt appears and sometimes I can type in a command but the moment I hit return the machine hangs. 10 full minute later control returns and the VM is responsive. NOTE: there are several Ubuntu VMs on the same host machine that are identical in all ways that I can tell. However, only one of the VMs displays this behavior. That is why I mention the ESXi host in passing - I don't think it has anything to do with the problem. This behavior is never seen when I connect with the troubled-VM's console (through vSphere Client). From the console the Ubuntu VMs all respond beautifully. I have seen: http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&docType=kc&externalId=1003496&sliceId=1&docTypeID=DT_KB_1_1&dialogID=229586372&stateId=1%200%20229588522 ...and since that relates to delays in seeing the password prompt that does not appear to be the solution here. Any other suggestions very welcome - thank you.

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• How do I get a network printer installed in ubuntu 9.04?

  - by SoaperGEM

  My girlfriend's work computer now has Linux on one of the partitions, and for the most part it's running fine--except that I can't seem to get the network printers configured right. There are two of them: a Lanier MP 7500/LD275 and a Lanier MP C3000/LD430c, and Linux seems to have found them both automatically. I'll go through the steps of what I did, and what exactly went wrong. I went to Administration Printing, and clicked the new printer button. It searched for printers and found them both, listed under "Network Printers." I added them as new printers in succession. However, when I clicked "Print a Test Page," it failed saying there was a broken pipe. The device URIs were saved as socket://[ip address]:9100. I changed these to lpd://[ip address] per some online tutorial, which at first looked like it might have worked (but didn't). Then when I tried to print a test page, it first said Processing (and sometimes even Processing - printing test page, 4%, but always subsequently displays Idle - /usr/lib/cups/backend/lpd failed. Help! What do I do? It seems like Linux can find these printers just fine, and the drivers seem to be in place, so what's going wrong?

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• Computer keeps restarting [closed]

  - by Joris

  I have a strange problem with my desktop pc, when I start it, it just restarts immediately, it displays the bios/motherboard logo and then restarts. I can't access the bios to edit settings because it restarts to fast. Then I tried different things to fix it with mixed success. (I also tried to reset the bios without success) I noticed that a capacity from the graphics card was broken (it looked exploded) so I ordered a new graphics card & plugged it in the computer. It didn't change much, still the same problem. Then I unplugged everything that's not necessary and put only 1Gig RAM in the motherboard (usually it has 4 x 1Gig RAM) and the computer started, then I putted another gig of RAM and the computer still started. (starting=booting windows) When I putted in the 3th RAM it didn't boot anymore (again restarting all the time) so I removed this 3th gig of RAM and this is where it gets weird. I expected the computer to boot again because it is exactly the same configuration as before - which worked - but the computer didn't want to start. It just gave the same problem as before (restarting all the time.. ) Anyone an idea what might be wrong?

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• Many different BSOD

  - by Exa

  I'm experiencing multiple bluescreens for a couple of months now. Their error code is as diverse as their time of occurence... Sometimes it happens during gaming, sometimes when watching videos, sometimes when the computer is idle. These are the bluescreens I see most often: PAGE_FAULT_IN_NONPAGED_AREA KMODE_EXCEPTION_NOT_HANDLED IRQL_NOT_LESS_OR_EQUAL SYSTEM_SERVICE_EXCEPTION SYSTEM_THREAD_EXCEPTION INTERRUPT_EXCEPTION_NOT_HANDLED DRIVER_IRQL_NOT_LESS_OR_EQUAL DRIVER_OVERRAN_STACK_BUFFER Responsible drivers (according to the memory dumps): hal.dll tcpip.sys dxgmms1.sys ndis.sys mouhid.sys atikmdag.sys dump_atapi.sys and of course: ntoskrnl.exe My first thought was a driver incompatibility because I am using Windows 8 and some of the bluescreens seem to come from driver issues. All drivers are up to date. I'm afraid that my memory is broken or the mainboard or both. I used the windows integrated memtest which didn't find any errors. Memtest86 found some errors. Does it make sense to buy new memory? Couldn't it be a problem of the board as well? I also read that my memory could run at a too low voltage. But it's set to 1.5V as recommended. Another guess would be to set the memory's latencies manually, but how do I know which ones to try? Here is a screenshot of bluescreenview showing the latest bluescreens. Maybe someone has faced the same behavior before and found a solution. Any ideas or suggestions? Current setup on which the bluescreens occur. Windows 8 RTM (6.2.9200) Asrock 970 Extreme4 AMD FX-8150 ATI Radeon HD5850 16 GB RAM (DDR3-1800) Latest drivers for all devices

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• Can't delete ntuser.dat file to remove profiles after reboot

  - by Matrix Mole

  I've ran into an issue where some servers will not release the handle on the ntuser.dat file even after a reboot. Or quite possible, after the reboot, the ntuser.dat file is getting re-loaded into memory. The user accounts are definitely not being accessed (some of them belong to users that have not been with the company in over a year). It seems to be on Windows 2003 servers, but I can't be 100% certain that there aren't some 2000 servers showing this issue as well. When I try to use process explorer or handle.exe from sysinternals to kill the handle on these ntuser.dat files, the handle remains open and connected. Handle.exe even reports that the handle was broken while it remains in use. I've even taken ownership on the file and tried to kill the handle to no effect (windows shows I have ownership of the file, but still refuses to release the handle). I have looked into the registry to see if I can discover where the files may be getting loaded at. Unfortunately, the username is appearing in too many places for me to be certain which one is actually loading their reg file into memory. Any suggestions on how I can either break the handle on the files, or prevent them from getting re-loaded after a reboot?

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• How do I restore tab-completion on shell variables on the bash command-line?

  - by Eric

  I've long set my most-recently visited directories to shell variables d1, d2, etc. On an ancient Fedora machine I could type a command like $ cp $d1/ and the shell would replace $d1 with text like /home/acctname/projects/blog/ and would then show me the contents of .../blog, like any tab-completion. Now, both ubuntu wheezy/sid and fedora 16 just -escape the '$', and naturally there are no completions to show. You can see this behavior in action in an OSX Terminal window. On 10.8, do something like ls $HOME/ to see what I mean. Is there a bash shell variable or option that can restore the old behavior? man bash suggests this is a bug: complete (TAB) Attempt to perform completion on the text before point. Bash attempts completion treating the text as a variable (if the text begins with $), username (if the text begins with ~), hostname (if the text begins with @), or command (including aliases and functions) in turn. If none of these produces a match, filename completion is attempted. I get the above described completion when a token starts with '~' or a letter. It's just '$'-completion that's broken.

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• TCP Keepalive and firewall killing idle sessions

  - by Carlos A. Ibarra

  In a customer site, the network team added a firewall between the client and the server. This is causing idle connections to get disconnected after about 40 minutes of idle time. The network people say that the firewall doesn't have any idle connection timeout, but the fact is that the idle connections get broken. In order to get around this, we first configured the server (a Linux machine) with TCP keepalives turned on with tcp_keepalive_time=300, tcp_keepalive_intvl=300, and tcp_keepalive_probes=30000. This works, and the connections stay viable for days or more. However, we would also like the server to detect dead clients and kill the connection, so we changed the settings to time=300,intvl=180,probes=10, thinking that if the client was indeed alive, the server would probe every 300s (5 minutes) and the client would respond with an ACK and that would keep the firewall from seeing this as an idle connection and killing it. If the client was dead, after 10 probes, the server would abort the connection. To our surprise, the idle but alive connections get killed after about 40 minutes as before. Wireshark running on the client side shows no keepalives at all between the server and client, even when keepalives are enabled on the server. What could be happening here? If the keepalive settings on the server are time=300,intvl=180,probes=10, I would expect that if the client is alive but idle, the server would send keepalive probes every 300 seconds and leave the connection alone, and if the client is dead, it would send one after 300 seconds, then 9 more probes every 180 seconds before killing the connection. Am I right? One possibility is that the firewall is somehow intercepting the keepalive probes from the server and failing to pass them on to the client, and the fact that it got a probe makes it think that the connection is active. Is this common behavior for a firewall? We don't know what kind of firewall is involved. The server is a Teradata node and the connection is from a Teradata client utility to the database server, port 1025 on the server side, but we have seen the same problem with an SSH connection so we think it affects all TCP connections.

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• Open an X application going through many hoops (SSH, vpn etc)

  - by ??O?????

  The players: my home computer, running Linux with an X server running. (Call it HOME.) a remote site, to which I can connect over the internet using a VPN. (SITE) a Linux computer at the remote site, to which I can connect with ssh -X and nicely have X clients displaying on my local server. (MIDDLE) a very old Irix machine (an Onyx) at the remote site, which has no SSH server (therefore I can't ssh -X to it), only an ssh client. (ONYX) Purpose I need to run an X11 application on the ONYX machine, and see the GUI on HOME. I think I stumble upon xauth issues. So far The current situation is: ? HOME connects to SITE ? A vncserver starts on MIDDLE:7 ? vncviewer on HOME connects to vncserver on MIDDLE ? ONYX starts a forwarding ssh session to MIDDLE: ssh -TfN -L 6007:127.0.0.1:6007 MIDDLE ? DISPLAY=localhost:7 xclient on ONYX fails with Xlib: connection to "127.0.0.1:7.0" refused by server I do know that the forwarding (6007:127.0.0.1:6007) succeeds. A previous attempt was: ? HOME connects to SITE ? HOME connects to MIDDLE: ssh -X MIDDLE (xclock displays on HOME, DISPLAY is 127.0.0.1:10) ? ONYX starts an SSH tunnel to MIDDLE: ssh -TfN -L 6010:127.0.0.1:6010 MIDDLE ? DISPLAY=127.0.0.1:10 xclient fails with X connection to 127.0.0.1:10.0 broken (explicit kill or server shutdown). while an error pops up in the MIDDLE session: X11 connection rejected because of wrong authentication. Despair How can I achieve my purpose?

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• Drive letter not appearing after heat-related crash

  - by NickAldwin

  I recently had my old PC (has 3 physical hard drives partitioned into 6 partitions) off while on vacation. When I came back, I turned it on. I hadn't realized the room was warmer than it usually is due to hot weather while I was away. The computer was extremely slow to start up, then it crashed. When i rebooted, it got halfway through chkdsk on one of the non-system partitions, then crashed again. I opened it up and felt the hard drives and immediately shut down the computer and moved it to my basement to cool down because it was so hot. I left it there for a length of time while I reinstalled the A/C. I have now turned it on again. It is working fine, and every drive except for the one with the partition that was being checked has appeared in Windows. I scheduled chkdsk for all of the other partitions anyway, just in case, but I'm worried about that drive. I'm pretty sure the drive itself hasn't broken but that crashing in the middle of a chkdsk repair may have corrupted the data. What would you do in this situation? Most of the data on that drive was backed up, so it's not a huge deal if I lost it, but I'd like to get it back if I could. I also would love to regain usability of the drive, even if I have to wipe it -- but that's a last-resort sort of thing. What do you suggest I do?

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• System x3550 M2 stuck on system initializing after firmware upgrades

  - by itmanager223

  Hey guys so i have been having this major issue for the last few hours now. I have a system x 3550M2 server and i ran the UEFI and IMM firmware upgrades within windows server 2008 R2 x64. All upgrades went fine and i was told to reboot. I performed the reboot cleanly using the OS restart option. Upon restarting it showed the system initializing screen and it stayed there for a good hour. After that hour i figured it froze and so i powered down and power up again. Now i can not boot back up to even see the IBM splash screen or the OS... I have tried switching the Jumpers to go to the backup UEFI and backup IMM and no luck. I have also reset the CMOS power and i have pressed the reset button 3 times on the light path and no luck. There are no lights light on the light path to indicate anything is broken. The only thing i see on the light path is the number 0.5. Any ideas guys i am quite stumped with this problem. Thanks a lot, Dani Cela

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• Why does 3.5 mm audio out work through headphones but not through external speakers?

  - by Rickster

  I have a computer that has a 3.5 mm audio jack on the front of it. The computer itself has no speakers, so this is the only way to hear sound. If I plug headphones into it, the audio properly plays through the headphones, and if I plug in external speakers it used to play through them as well. Just today I turned on my computer and the audio no longer plays through the speakers, but if I plug in the headphones instead it works. The speakers aren't broken, as both the speakers and headphones work in my iPod and play music. I thought that 3.5 mm jacks could not send data back to the computer, and the computer had no way of differentiating between different devices plugged into the jack. If this is true, how is it that the computer plays audio through the headphones but not through speakers plugged into the same 3.5 mm jack, and both devices are functional? Or is my knowledge on 3.5 mm jacks incorrect? I don't believe drivers are important, as the same driver runs the 3.5 mm jack for all devices, but if necessary I can provide additional information. Any ideas would be appreciated. Thanks!

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• Google analytics ignoring "required step" in goals

  - by Matt Huggins

  I am A/B testing a landing page to see which converts better. The funnels are set up exactly the same in terms of the goal completion URL and funnel steps, with one exception: the first step (which is a required step) has a different URL to represent each of the two landing pages. Unfortunately, Google is tracking a conversion for both of these goals regardless of which landing page a user is reaching! It looks like the "required step" is broken...perhaps it is a deeper issue if others haven't noticed it, such as it only not working when the goal URL is the same between multiple goals. Here is an example of what I mean. Goal 1: Goal URL: /users/dashboard (head match) Funnel: 1. /homepages/index1 (required step) 2. /users/register 3. /users/edit Goal 2: Goal URL: /users/dashboard (head match) Funnel: 1. /homepages/index2 (required step) 2. /users/register 3. /users/edit As you can see, the only difference is step #1 of the funnel. Since I am A/B testing the landing page of the site, this should be the only difference. However, when I look at the goal page of Google Analytics, I see that the goal is being recorded for both of these regardless of the landing page being reached. The only tinkering I've done is attempting to wrap each funnel step's goal in ^ and $ characters for an exact regular expression match, but this didn't make a difference. Thoughts?

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• Recover data from hard drive with partitions (but not most data) overwritten

  - by Macha

  I have a 500GB hard drive I've been keeping around to recover data from that I removed from a failing NAS drive that got sort of... erratic at the end. I finally got rid of the NAS when during a firmware update it removed the partition table. Fast forward to a week ago, when I was building a new PC, and a mixup resulted in me placing the hard drive in question in the new PC and installing Windows XP on the first 100GB. I'm presuming any data on that first 100GB is now gone, but for the rest of it, is there any way I can recover it at home, as professional data recovery is currently too expensive? I have a blank 1TB HDD if I can store any images of that hard drive on. The problem was definitely with the NAS and not the hard drive, as the hard drive had a successful install of Windows when mistakenly place in the new PC, and there were capacitors in the NAS's circuitry clearly broken. The data I want to recover (in order of priority) is: High: Some jpgs of family photos. Medium: Some RAW files. (There are also jpg versions of all of these) Low: Some mp3s, avis and ISOs, I can re-rip most of these if need be, but it'd be handy not to have to. (I don't need a backup lecture, and if you can hold it in from nagging Jeff Atwood for it, you can hold it in from nagging me for it) In short: The partition tables are gone and overwritten. The data is not overwritten, except for an amount equal to the size of a Windows XP SP3 installation.

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