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• CentOS vps is randomly rebooting

  - by develroot

  I have a centos vps (Parallels Virtuozzo container) which has been running for months. However, a few days ago it started to randomly reboot itself, and i can't find out why. And the biggest problem that i don't understand is that it takes 40 minutes to reboot (as far as i can see in the logs) root ~ # cat /var/log/messages | grep shutdown Oct 11 13:52:11 vps27 shutdown[23968]: shutting down for system halt Oct 14 14:55:17 vps27 shutdown[30662]: shutting down for system halt Oct 15 06:21:23 vps27 shutdown[20157]: shutting down for system halt And notice the time difference between shutdown and xinetd's start: Oct 15 06:21:23 vps27 shutdown[20157]: shutting down for system halt Oct 15 06:21:24 vps27 init: Switching to runlevel: 0 Oct 15 06:21:27 vps27 saslauthd[30614]: server_exit : master exited: 30614 Oct 15 06:21:38 vps27 named[30661]: shutting down Oct 15 06:21:47 vps27 exiting on signal 15 Oct 15 07:04:34 vps27 syslogd 1.4.1: restart. Oct 15 07:05:06 vps27 xinetd[1471]: xinetd Version 2.3.14 started with libwrap loadavg labeled-networking options compiled in. Oct 15 07:05:06 vps27 xinetd[1471]: Started working: 0 available services And here's what Parallels Power Panel says in terms of Status Changes: Time Old Status Status Obtained Oct 15, 2011 06:23:46 AM Mounted Down Oct 15, 2011 06:22:31 AM Running Mounted Oct 14, 2011 03:06:48 PM Starting Running Oct 14, 2011 03:06:23 PM Down Starting Oct 14, 2011 03:06:08 PM Mounted Down Oct 14, 2011 02:58:24 PM Running Mounted For some reason it's getting into Mounting mode and then restarts itself. The only problem that i can imagine is disk space utilization, which is now 84%. But can that be a reson for system halt? Time Category Details Type Parameter Oct 15, 2011 07:08:33 AM Resource Resource counter_disk_share_used yellow alert on environment vps27 current value: 82 soft limit: 85 hard limit: 95 Yellow zone counter_disk_share_used Oct 15, 2011 06:27:23 AM Resource Resource counter_disk_share_used yellow alert on environment vps27 current value: 82 soft limit: 85 hard limit: 95 Yellow zone counter_disk_share_used Oct 15, 2011 06:23:50 AM Resource Resource counter_disk_share_used green alert on environment vps27 current value: 0 soft limit: hard limit: 0 Green zone counter_disk_share_used Oct 14, 2011 03:06:24 PM Resource Resource counter_disk_share_used yellow alert on environment vps27 current value: 83 soft limit: 85 hard limit: 95 Yellow zone counter_disk_share_used Oct 14, 2011 03:05:50 PM Resource Resource counter_disk_share_used green alert on environment vps27 current value: 0 soft limit: hard limit: 0 Green zone counter_disk_share_used

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• How to turn off Excel "Header Row" without losing data in it?

  - by Ken

  I've been sent an Excel spreadsheet with a weird first row. Some of the cells say "Column1", "Column2", etc., but I can't delete their contents. If I select the cell and hit backspace, it goes blank, but when I press return, it goes right back to saying "Column1". I found another answer here that suggested this could be caused by "Cell validation", but the validation window says "Any value", and also "show alert" (and I'm not seeing an alert), so I don't think that's it. The first row is white text on a blue background, if that means anything. The spreadsheet was sent to me in XLSX format, but I tried resaving as XLS and opening that, and it seems to make no difference. This is with the "ribbon" version of Excel (they got rid of the Help menu so I don't know how to see what version number it is!). Thanks! Update: The Excel online help says to use ribbon Home tab - Cells - Delete - ... to delete cells. When I select anything on the first row, this pop-up menu is dimmed. So maybe Excel doesn't think row 1 consists of "cells"? Though I don't know what else it would call them. Update 2: I found it, kind of. If I click the "Design" tab in the ribbon, then uncheck "Header Row", then first row becomes a normal row of cells again. Unfortunately, the contents disappear entirely. I want to delete a few cells, not all 50+! And if I copy the first row before turning off "Header Row", it disappears from the clipboard when I uncheck that. So I kind of know what mode it's stuck in, but not a good way out of it.

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• Wireless does not work on Ubuntu 9.04

  - by Yongwei Xing

  Hi all I install the Ubuntu 9.04 my old Lenovo Y520 laptop, the wirless does not work.My Wireless card is Intel Pro/wireless 2100 card. But I can not enable it. My wired card is working well. Does anyone meet it before. the ifconfig output is eth0 Link encap:Ethernet HWaddr 00:0a:e4:5f:6c:30 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:973 errors:0 dropped:0 overruns:0 frame:0 TX packets:1025 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:574701 (574.7 KB) TX bytes:169249 (169.2 KB) Interrupt:10 eth1 Link encap:Ethernet HWaddr 00:0c:f1:58:79:b5 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:10 Base address:0x8000 Memory:d0202000-d0202fff lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:480 (480.0 B) TX bytes:480 (480.0 B) the output of iwconfig is eth1 unassociated ESSID:off/any Nickname:"ipw2100" Mode:Managed Channel=0 Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:off Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 I have another question. When my OS is 9.04, there is a icon about network connection on the panel at the top. After I upgraded to 9.10, that icon disappeared. How can I get that back? Best Regareds,

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• Windows 7 doesn't start anymore

  - by martani_net

  Hi, I've experienced some BSOD on windows 7 RC, and some freezing when startup, but today was big surprise, it doesn't start anymore. I tried to start on safe mode and no results too, it shows the starting animation, then a blue screen for less than a second and turns off immediately. The only thing I remember did today is update flash player under Firefox, then chrome stopped working even after logging off, and once restarting, it doesn't start anymore. Anyone experienced the same issue? any hints? [EDIT 3] Solved : Windows 7 have a very smart repair strategy, it works automatically, and it tried every possible fix, what fixed my problem was the system restore to a previous date, all this happened automatically. [EDIT2] these are the last lines in the ntbtlog.txt file Did not load driver \SystemRoot\System32\drivers\vga.sys Loaded driver \SystemRoot\System32\Drivers\NDProxy.SYS Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS Did not load driver \SystemRoot\System32\Drivers\NDProxy.SYS Loaded driver \SystemRoot\system32\drivers\CHDRT32.sys Loaded driver \SystemRoot\system32\DRIVERS\VSTAZL3.SYS Loaded driver \SystemRoot\system32\DRIVERS\VSTDPV3.SYS Loaded driver \SystemRoot\system32\DRIVERS\VSTCNXT3.SYS Loaded driver \SystemRoot\system32\drivers\modem.sys Loaded driver \SystemRoot\system32\DRIVERS\usbccgp.sys Loaded driver \SystemRoot\System32\Drivers\usbvideo.sys [edit] this is the BSOD I get : http://twitpic.com/i87cx Thank you.

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• How do I diagnose the cause of a freeze after resuming in Windows XP (SP3)?

  - by Software Monkey

  I have just built a new computer from parts. Whenever I resume from any sleep mode (S1, S3 or S4) the computer freezes within about 60 seconds of the welcome screen appearing. I have updated the BIOS and all drivers to current from the motherboard manufacturer's site. I have reset BIOS settings to default, including disabling AMD Cool n Quiet. The windows event logs are not helpful at all. Other than immediately after resuming the system is stable as long as AMD CnQ is disabled. The system is: Mobo : MSI 790GX-G65 CPU : AMD Phenom II 965 BE at 3.6 GHz Memory : Corsair DDR3 1600, at 1333 MHz and 9-9-9-21 HDDs : 1 EIDE, 2 SATA in RAID-0 DVD : 1 Card Reader: 1 multi-card reader Keyboard is attached via PS2 and mouse is USB. Any thoughts or pointers would be most welcome. EDIT: It appears that the computer may not freeze if a program is left running which puts it under significant load. I left a stress test running which keeps all cores under 85% load, and my son put the computer to sleep - while this program is running it I have been able to resume from S3 successfully 4 times, compared against about 20 tests with the computer idle which have all frozen. So this may be related to being in an idle state when it resumes.

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• Is execution of sync(8) still required before shutting down linux?

  - by Amos Shapira

  I still see people recommend use of "sync; sync; sync; sleep 30; halt" incantations when talking about shutting down or rebooting Linux. I've been running Linux since its inception and although this was the recommended procedure in the BSD 4.2/4.3 and SunOS 4 days, I can't recall that I had to do that for at least the last ten years, during which I probably went through shutdown/reboot of Linux maybe thousands of times. I suspect that this is an anachronism since the days that the kernel couldn't unmount and sync the root filesystem and other critical filesystems required even during single-user mode (e.g. /tmp), and therefore it was necessary to tell it explicitly to flush as much data as it can to disk. These days, without finding the relevant code in the kernel source yet (digging through http://lxr.linux.no and google), I suspect that the kernel is smart enough to cleanly unmount even the root filesystem and the filesystem is smart enough to effectively do a sync(2) before unmounting itself during a normal "shutdown"/"reboot"/"poweorff". The "sync; sync; sync" is only necessary in extreme cases where the filesystem won't unmount cleanly (e.g. physical disk failure) or the system is in a state that only forcing a direct reboot(8) will get it out of its freeze (e.g. the load is too high to let it schedule the shutdown command). I also never do the "sync" procedure before unmounting removable devices, and never hit a problem. Another example - Xen allows the DomU to be sent a "shutdown" command from the Dom0, this is considered a "clean shutdown" without anyone having to login and type the magical "sync; sync; sync" first. Am I right or was I lucky for a few thousands of system shutdowns?

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• can't ssh from mac to windows (running ssh server on cygwin)

  - by Denise

  I set up an ssh server on a fresh windows 7 machine using the latest version of cygwin. Disabled the firewall. I can ssh into it from itself, from a different windows box (using winssh), and from a linux vm. In spite of that, I tried to ssh in from two different macs, and neither would let me! This is the debug output: OpenSSH_5.1p1, OpenSSL 0.9.7l 28 Sep 2006 debug1: Reading configuration data /etc/ssh_config debug1: Connecting to 3dbuild [172.18.4.219] port 22. debug1: Connection established. debug1: identity file /Users/Denise/.ssh/identity type -1 debug1: identity file /Users/Denise/.ssh/id_rsa type 1 debug1: identity file /Users/Denise/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5 debug1: match: OpenSSH_5.5 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-cbc hmac-md5 none debug1: kex: client->server aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '3dbuild' is known and matches the RSA host key. debug1: Found key in /Users/Denise/.ssh/known_hosts:43 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Trying private key: /Users/Denise/.ssh/identity debug1: Offering public key: /Users/Denise/.ssh/id_rsa Connection closed by [ip] It shows the same output, and fails at the same place, whether I have put my public key on the ssh server or not. Any help would be appreciated-- hopefully someone has run into this before?

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• Why java -version returning a different version than the one defined in JAVA_HOME?

  - by Shekhar

  I am trying to set JAVA_HOME in Ubuntu OS. I have copied jdk 1.7 in /usr/lib/jvm and set JAVA_HOME in /etc/profile file. Contents of /usr/lib/jvm folder are as follows : shekhar@ubuntu:~$ ls /usr/lib/jvm/ default-java java-1.6.0-openjdk java-6-openjdk java-6-openjdk-i386 jdk1.7.0_01 java-1.5.0-gcj-4.6 java-1.6.0-openjdk-i386 java-6-openjdk-common java-7-openjdk-i386 and last few lines of /etc/profile file are as follows : export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_01 export PATH=$PATH:$JAVA_HOME/bin After finishing all this when I run java -version command I get following output : shekhar@ubuntu:~$ java -version java version "1.6.0_24" OpenJDK Runtime Environment (IcedTea6 1.11.4) (6b24-1.11.4-1ubuntu0.12.04.1) OpenJDK Server VM (build 20.0-b12, mixed mode) and when I run ls -lah command I get following output : shekhar@ubuntu:~$ ls -lah /usr/bin/java lrwxrwxrwx 1 root root 22 Sep 29 09:58 /usr/bin/java -> /etc/alternatives/java shekhar@ubuntu:~$ ls -lah /etc/alternatives/java lrwxrwxrwx 1 root root 45 Sep 29 09:58 /etc/alternatives/java -> /usr/lib/jvm/java-6-openjdk-i386/jre/bin/java Can anyone please tell me which thing I am missing? Why Ubuntu is still pointing to open jdk and not to my jdk 7? PS : I have seen this similar question and its answers but that question is related to Windows OS and not for Ubuntu so I am reposting this similar question for Ubuntu.

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• Windows 7 notebook turn off by itself, how to check if it is due to CPU being too hot?

  - by Jian Lin

  I have a Dell Studio 15 notebook, and it just started turning off by itself yesterday. Could it be that the CPU is too hot? I have had several notebooks before and every one of them I can put them on the bed without any problem. This Dell Studio Notebook, however, seems like have the air / fan outlet pointed outward from the bottom back of the notebook, so I suspect that the air is partially blocked when it is on the bed. Are there Win 7 tools that can monitor the CPU temperature, or will some 3rd party tool be needed? (I try to stick to official tools nowadays). Also, it is running Win 7 Ulitmate, there is actually no utility or background service from Win 7 or from Dell that detects when the temperature is too hot (or 95% near the max), pop out a message box giving a warning and say that the computer will go into sleep mode in 1 minute, but instead just turn off the computer by brute force (cutting out the power) right then and there? Update: it turned off right in front of my eyes -- it is not doing any windows update or anything. just normal use and jooooop, it turned off.

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• What is causing sudden freezing during running real-time program?

  - by Trevor Boyd Smith

  So I run a high intensive (CPU/GPU) real-time program. During normal execution suddenly everything freezes for 1-4 seconds. I opened "Process Explorer" in the background to help gain insight and maybe identify something. Here is what the CPU/GPU graphs looks like when I align them in time: Notice the 4 distinct drops in both the CPU/GPU. You can see that it goes from some sort of positive CPU/GPU usage to almost zero. These drops in the graph align with when the real-time program suddenly freezes. How do I find what is causing these sudden drops? NOTE: When you put your mouse over the graph it tells you the time, accurate to the second, for where your cursor is. Maybe this mouse over feature could be helpful in some way (e.g. what if you had a log of all processes every 100ms). EDIT: The real-time program is a video game and so I can't watch some sort of instrumentation while the video game is running. I need a solution that let's you look back in time somehow to see what was happening when the slow down occurred. EDIT: RE - Recording Data vs using real-time monitor: So the windows performance recorder is for some reason not recording what I expect it to record. So I switched to using "perfmon" and then opening it's "resource monitor". RE - Setting it up so I can view real-time monitor: In the video game I set it to spectate and then put the video game in "windowed" mode so that I can view the real time display that Resource Monitor has. Now that I can get semi-real time (only once per second... how do you get more than once per second?) I started looking at the various real time data readouts. Getting to the cause: I noticed a strong correlation in high disk IO and low CPU usage (which is also seen by having in-game freezing). How do you use resource monitor to find out who is doing all this offending disk IO?

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• Dovecot authentification not working

  - by user1488723

  I run a Ubuntu 10.04 VPS with Postfix and Dovecot installed. For a while I had problems with the mailserver itself (Postfix) but now it runs ok. I can telnet into it from localhost (telnet localhost 25 while logged in) and Im blocked if I try to do it from the outside (telnet mail.example.org 25). This is as it should be according to my main.cf However when I try to log in using Dovecot (openssl s_client -connect mail.example.com:993) I'm allowed in but denied when trying to identify myself as a user: Excerpt from Dovecot log in: Key-Arg : None Start Time: 1341074622 Timeout : 300 (sec) Verify return code: 18 (self signed certificate) OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready. When I continue and try to log in to a specific user with the command: A001 login user password I get: A001 NO [AUTHENTICATIONFAILED] Authentication failed. I've reset the password to ensure it is correct and I know the user (user) exists on the system. When I do /etc/init.d/dovecot reload I get: /etc/init.d/dovecot: 29: maildir:~/Maildir: not found * Reloading IMAP/POP3 mail server dovecot [ OK ] Could it be that the mailboxes isn't found? Postfix main.cf: home_mailbox = Maildir/ mailbox_command = recipient_delimiter = + inet_interfaces = all smtpd_use_tls = yes smtpd_tls_auth_only = no smtpd_tls_loglevel = 1 smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem smtpd_sasl_auth_enable = yes smtpd_client_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination smtpd_sender_restrictions = permit_sasl_authenticated, permit_mynetworks smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination broken_sasl_auth_clients = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $mydomain Dovecot.conf: protocols = imap imaps disable_plaintext_auth = no log_timestamp = "%b %d %H:%M:%S " ssl = yes ssl_cert_file = /etc/postfix/ssl/smtpd.crt ssl_key_file = /etc/postfix/ssl/smtpd.key mail_location = maildir:~/Maildir auth_verbose = yes mail_access_groups = mail auth_username_chars = abcdefghijklmnopqrstuvwxyz0123456789 protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep } auth default { mechanisms = plain login passdb pam { } userdb passwd { } socket listen { client { path = /var/spool/postfix/private/auth user = postfix group = postfix mode = 0660 } } }

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• Having Trouble Ripping Some CD's

  - by James

  Hi, When I buy CD's I tend to rip them to FLAC right away. When ripping I use Foobar2000 or Exact Audio Copy and enable secure ripping which uses error correction. Recently I bought a 2 CD compilation album brand new but when I tried to rip the second CD on my laptop using Foobar2000 it struggled with the last 2 tracks and was unable to finish. EAC was also unable to get an accurate rip and reports read errors. Ripping in fast mode results in audible errors in the output track. I have tried another computer and having similar problems. I cannot see any damage to the disc and it has not been dropped or anything. The weird thing is that I had similar problems with a different album and different PC a while back. This other CD was a compilation disk so it was also right up to the CD capacity limit and again it was the last few tracks that would not rip. Dozens of other discs have ripped fine So I am wondering if the CD is simply defective, or whether it is something else. How common are defective CD's? Do some CD drives struggle with CD's of this capacity? Or Is this some kind of copy protection? I'm thinking of asking Amazon for a replacement but it would be annoying if I get the same problem again.

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• IP queue buffer

  - by summerbulb

  I seem to have an issue with IP queue. I have a linux machine that I am using to run some experiments. The linux machine is configured to be a router, having two NICs, connecting two other computers, and managing their network traffic. All incoming packages are captured, using iptables, and analyzed by a C application. The application analyzing the packets has a built-in delay, as part of the experiment. So I have one very fast computer sending packets through my linux-router and a (relatively) slow linux-router that analyses and deals with the packets, one by one. This situation leads to the fact that when I fire up a sender application on one of the computers connected to the linux-router, my IP queue on the linux-router gets filled up (almost) instantaneously. The IP queue's max length is currently set to 1024, and if it overflows, the packets are dropped. This is expected and i'm OK with it. But, (and this is where it gets interesting), every now and then I get the following error: "Failed to receive netlink message: No buffer space available" At start, I thought this was due to the IP queue overflow, but after some analysis i found that sometimes I get the error even if the IP queue buffer did not overflow, and sometime I DON'T get the message even though the buffer DID overflow. When I run > cat /proc/net/ip_queue, I get the following table (also used to monitor the IP queue overflow): Peer PID : 27389 Copy mode : 2 Copy range : 65535 Queue length : 0 Queue max. length : 1024 Queue dropped : 1166875 Netlink dropped : 2916 Looking at the last two values, Queue dropped seems to refer to packets that did not manage to get into the IP queue because the buffer was full. I can see this value rise as I bombard the linux-router. Netlink dropped ( as it's name implies :) ) seems to have to do with the error i'm getting. I did my best to search for material on this error, but wasn't able to find anything that seemed to point me in the required direction. Bottom line: Why am I getting this error and what can I do to avoid it?

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• Did chkdsk make it harder to restore files?

  - by neyl

  My friend asked me to try and fix his loaded Sansa Clip + which wasn't playing. After opening it in MSC mode I discovered that the Music directory was empty and total of all files was only a few MB. However Disk properties showed me that it was 7Gb full. I then ran Tools - Error Checking and Windows dutifully informed me that disk was corrupt and I should run again Allowing Windows to Fix Errors. I did that and it told me everything was fixed and that all files were placed in FOUND.000 Dir. FOUND.000 was about 7.5 GB with FILE0000-1546 . CHK. (I am aware of methods like ChkBack to scan and convert to mp3 etc BUT Original filenames and structure needed!) Now I started getting worried that I made things worse! I have plenty of experience with Data Recovery Programs - Recuva, Restore My Files etc. and I was anyhow planning to use them to scan the drive. But NOW after CHKDSK "fixed" the drive maybe it modified critical FAT information vital for data recovery. So I run these programs and 0!!!. No trace of files! I tried a ton of Recovery Programs with same results TILL EaseUS Data Recovery Wizard found all files and I purchased program for $55! My Question In your opinion - did running CHKDSK with automatic fixing of errors make matters worse (i.e. many data recovery progs. didn't find a trace and they would have done if not for chkdsk) or was the filesystem too corrupt anyhow for regular File Recovery Progs.? If I would be a Professional - would I be responsible for running CHKDSK - automatic Fixing. Do you know of a better Data Recovery Program than EaseUs Data Recovery wizard - According to my experience I haven't found better!? Thanks

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• VirtualBox VM running web server not accessible via external IP

  - by mwigdahl

  I have a Windows 7 machine running VirtualBox with an Ubuntu guest. The guest has a Bitnami LAMP stack installed. I have the guest configured for Bridged networking, and I can access the guest web server just fine from other machines on my LAN using the guest's IP. I'm trying to configure port forwarding so that I can access the web server from outside my LAN. (The router is a 2WIRE model as I'm on ATT's UVerse). I've set up port forwarding for ports 80 and 443 to the guest's IP in a similar manner to how I had them set up for my previous, physical web server, which worked just fine. However, I cannot seem to access the new, virtual web server using my external IP on the forwarded port. I suspected Windows Firewall issues on the host, but disabling it didn't solve the issue. Anyone have advice on what I should try next? EDIT: I've now attempted disabling the firewall on the guest with sudo ufw disable -- that doesn't seem to help either. However, after checking the router's port forwarding in more detail I may see the problem. My VM is named "linux" and in the router's configuration pages it shows up inconsistently. Sometimes it reports with a valid LAN IP and other times it doesn't show up with any IP. Even when it shows the correct IP the router indicates that it is disconnected. Could this be an indication that the 2WIRE router doesn't play well with VirtualBox's bridged networking mode?

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• Cant kill process on Windows Server 2008!! - Thread in Wait:Executive State

  - by adrian

  I hope someone can help me with our issue we are having. We have a major issue with a process that we can not kill and the only way to get rid of the process is to reboot the machine. I have tried killing it from the normal task manager but no joy. I have tried killing it using the taskkill /F command from a command prompt and no joy. The command reports as sucessful but the process remains. I have tried to start task manager with system rights by calling "psexec -s -i -d taskmgr" and attempting to kill the process but no joy I have tried killing it from Process Explorer but again the process remains. I have tried creating a scheduled task that runs under the SYSTEM name to kill the task but that also does not kill it : schtasks /create /ru system /sc once /st 13:16 /tn test1 /tr "taskkill /F /PID 1576" /it Nothing I do will kill this process. Even logging off and logging back on will not kill this process. Using Process Explorer I notice that there is on stubborn thread that is in the Wait:Executive state. I have tried to kill this thread using Process Explorer but again no joy. We are using Windows Server 2008 R2 64-Bit. The server is brand new and windows is freshly installed. Now heres the thing. We have brought two identical servers from Dell with the same specs and the same OS installed and I can not replicate this issue on the other server. Only on this server, under certain circumstances does this server process hang and can not be restarted! I have also changed the compatability mode by setting it the process to "Windows 2003" but this has not helped. I have noticed in Process Explorer that DEP is turned on but im not sure this has got any bearing on the issue ot not. Please, can someone help??

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• Why the VPN Network Shake-Up?

  - by Brent Arias

  I can RDP to another machine on my home network, only if I'm not also hooked up to my employer's VPN with the Cisco VPN client. Indeed, I can't even ping the other machine by name in this mode, because ICMP suddenly thinks that ( ping myMachine ) now means ( ping myMachine.myEmployer.com ). Of course there is no machine by that latter name, and so it fails. Even weirder, once I disconnect from the VPN I can again ping myMachine successfully, but ICMP reports the machine by its MAC address instead of its IP address. I don't think I've ever seen ping identify another machine by its MAC address. So two questions: How can I access via RDP/ping the other machine BY NAME on my local network while also connected to the VPN? Why is ping identifying a MAC address for the machine on my home network, instead of an IP address? And how can I change this so that an IP address is reported instead? For question #1, I can indeed access the other machine on my home network by IP address. I suspect if I put the name-IP pair into my HOSTS file, then I would be able to access it even when connected to the VPN. But I wonder if there is another (more elegant) solution?

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• Windows 7 comments field missing when browsing network

  - by Toymangenie

  I have just purchased three Windows 7 Professional Dell 64-bit PCs for testing prior to upgrading our company’s 120+ PCs from Windows XP Professional. The setup is a standard domain with a Windows Server 2003 32-bit server. We name each PC XP1 to XP150 so that when users join or leave, I don’t have to rename the PC. We use the Description field to allocate the user’s name to each PC. We also have a share set up on each PC using the user’s name. When I browse the network using Windows Explorer in XP, I get a useful display. The left pane showing the PC number and the right pane showing NAME and COMMENTS So, for example I would see: XP01 Fred Bloggs (Each PC on a new row.) The right pane is my main tool for administering the network. I can easily see the PC number and the name of the user. However, in Windows 7, this seems to have been thrown out of the window and replaced with fields that I do not need and in my case always display the same info. "Name", "Category", "Workgroup", "Network Location" In my case the Name column gives the PC number (XP10) etc and all three other columns display identical useless information. So I can’t see who is using XP10. When I am in “help desk” mode, I would naturally ask the user’s name and use my remote desktop client to view their screen. The user isn’t aware of their PC name, so I am finding it impossible to match the user name with a PC number. Any ideas how to overcome this "by design" change to Windows 7?

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• Is this "cache administrator" error my server's problem?

  - by Eoin

  Hey, I have a CentOS VPS running Apache with a phpBB installation. One specific user has received errors when posting a message or logging in to the forum. The following issue has arisen in parallel to installing nginx, which serves only the static files of my site. Not sure if this is only coincidence. Furthermore, my setup uses redirects (in some cases, double-redirects) to point the user to a different virtual folder. So, the forum is seen to be at /translation/ but the actual files are found in /phpbb/. I'm at a loss as to what may be the underlying issue. My server? The person's ISP? She has tested both at home and at work, with similar issues. While trying to process the request: GET /phpbb/index.php?sid=f62c927e7eb8f1d60a92dcc6fd918112 HTTP/1.1 Host: www.irishgaelictranslator.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-za Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 115 Connection: keep-alive Referer: http://www.irishgaelictranslator.com/phpbb/ucp.php?mode=login Cookie: phpbb3_cipi4_u=96645; phpbb3_cipi4_k=; phpbb3_cipi4_sid=f62c927e7eb8f1d60a92dcc6fd918112; __utma=153470688.1232378553.1294664234.1294664234.1294664234.1; __utmb=153470688.9.10.1294664234; __utmc=153470688; __utmz=153470688.1294664235.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); style_cookie=null The following error was encountered: Invalid Response The HTTP Response message received from the contacted server could not be understood or was otherwise malformed. Please contact the site operator. Your cache administrator may be able to provide you with more details about the exact nature of the problem if needed.

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• Win7 System folder contains infinitely looping SYSTEM(!) directory

  - by Matt

  My Windows 7 Enterprise computer has been crashing fairly frequently recently, so I decided to boot up in safe mode and run the TrendMicro client I have installed. It froze about 10 minutes into the full system scan, so in the spirit of http://whathaveyoutried.com, I started scanning each folder individually. When I got to ProgramData, the AV failed with an uncaught exception. I then went down a level and tried scanning Application Data, which failed as well. Imagine my surprise when I open the folder just to see the same folder again! As far as I can tell, this folder loop continues indefinitely. (If you are trying to recreate this, keep in mind that ProgramData is a hidden folder.) I'm actually a bit concerned that these are system folders, as this is a brand-new computer with a clean installation. I guess I have three questions: Has anyone else seen/experienced this before? I'm running Win7 SP1. How do I fix this? I've run CHKDSK \F with no success (although it was incredibly slow). What are the ramifications of an infinitely recursive directory? Theoretically speaking, each link takes up memory, so shouldn't I have no space available on my hard drive? (I've got about 180GB left.) I noticed that the tree view on the left only shows the "linked folder" icon on the deeper folders--does this mean anything special? (I've circled the icons or lack thereof in red.) How can the OS even resolve this aberration? And above all, what would happen if I were to select "Expand all folders"??? :P Matt

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• Recommend a free temperature-monitoring utility for cores + video card, on Vista?

  - by smci

  Looking for your recommendations for a free temperature-monitoring utility, for my PC (Core 2) and graphics card for Vista. (Question reposted with the hyperlinks now I have 10 reputation). I don't want all the geeky details, I don't overclock, I don't see the need to mess with my fan speeds or motherboard settings, I just want something fairly basic to help with basic troubleshooting of intermittent overheats on video card and/or mobo: must run on Windows Vista (yes, don't laugh). ideally displays temperature when minimized to toolbar, and/or: automatically alerts me when temperature on either core or the video card exceeds a threshold ideally measures temperature of video card and system as well, not just the cores. HDD temperature is not necessary I think. logging is nice, graphs are also nice portability to Linux and Mac is nice Apparently Everest is the best paid option, but I'm not prepared to spend $40. I found the following free options, but no head-to-head at-a-glance comparison: CoreTemp (only does cores, not video card?) Open Hardware Monitor (nice graphs, displays when minimized to toolbar, no alerts) RealTemp (has alerts, works minimized, lightweight install) HWMonitor (no alerts, CNET: "[free version is] simple but effective") from CPUID CPUCool (not free: 21-day trialware, then $18) SpeedFan from Almico (too geeky, detail overload; CNET: "most users won't be able to make head or tail of the data this utility provides") Motherboard Monitor (CNET: not recommended, requires expert knowledge of your mobo, dangerous) Intel Thermal Analysis Tool (only does cores, not video card? has logging) Useful discussions I found: hardwarecanucks.com , superuser.com 1, 2 , forums.techarena.in (Update: I downloaded Real Temp 3.60 and it meets all my needs, the customizable alert temperature is great. Open Hardware Monitor seems to be the other one that mostly meets my needs, except no alerts; but it is portable. I tried SpeedFan but the interface is very cluttered, too much unnecessary detail (needs a Basic/Advanced mode and a revamp of the interface.) The answer to my underlying issue is nVidia Geforce LE 7500 video card which runs very hot.)

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• Office 2003 Service Pack 3- Not able to install

  - by kabirrao

  I am trying to install Office 2003 SP3 on a windows 2003 EE server (used as a terminal server) which already have office 2003 SP2. I am getting an error that says "Update can not be applied". Below are the eventviewer entries for Application: _ Event Type: Warning Event Source: MsiInstaller Event Category: None Event ID: 1015 Date: 1-2-2010 Time: 5:51:22 User: Domain\domainadmin Computer: TER01 Description: Failed to connect to server. Error: 0x800401F0 For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. _ Event Type: Information Event Source: MsiInstaller Event Category: None Event ID: 11708 Date: 1-2-2010 Time: 5:52:23 User: Domain\domainadmin Computer: TER01 Description: Product: Microsoft Office Professional Edition 2003 -- Installation failed. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 7b 39 30 31 31 30 34 30 {9011040 0008: 39 2d 36 30 30 30 2d 31 9-6000-1 0010: 31 44 33 2d 38 43 46 45 1D3-8CFE 0018: 2d 30 31 35 30 30 34 38 -0150048 0020: 33 38 33 43 39 7d 383C9} _ Event Type: Information Event Source: McLogEvent Event Category: None Event ID: 257 Date: 1-2-2010 Time: 5:52:23 User: NT AUTHORITY\SYSTEM Computer: TER01 Description: Would be blocked by access protection rule (rule is in warn-only mode) (Common Standard Protection:Prevent common programs from running files from the Temp folder).

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• Problems with 5.1 digital out on Ubuntu 12.04

  - by user895319

  I've recently bought a new PC, installed Ubuntu and am now unable to get 5.1 digital sound working. Simple analogue stereo works fine on both the front and rear connectors. On my old box I connected the coax connection from my soundcard to my surround sound amplifier, set Settings-Sound to "Digital Stereo Duplex" and it worked. My old soundcard doesn't fit in my new machine so I'm using the built-in sound hardware. I'm connecting the combination output socket on the back of the PC via the same cable to my surround amp as before. The MB is an MSI Global H61M-P31 with an RealTek ALC887 sound chip. When I go to Settings-Sound I only see "Headphone Built-in Audio" and "Analogue Output Built-in Audio" - no digitial options. The output from aplay -l is: default Playback/recording through the PulseAudio sound server sysdefault:CARD=PCH HDA Intel PCH, ALC887-VD Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog Front speakers surround40:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers dmix:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog Direct sample mixing device dsnoop:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog Direct sample snooping device hw:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog Direct hardware device without any conversions plughw:CARD=PCH,DEV=0 HDA Intel PCH, ALC887-VD Analog Hardware device with all software conversions While googling for ALC887 I've seen some references to "ALC887 -VD Analog" and some to "ALC887 -VD Digital". Does anyone know if I need to force it to chance mode somehow? It's worth mentioning that when I set the output to 5.1 digital surround in Windows 7 on the same machine I still don't get any sound so it's not a unique Linux problem. Thanks for any help.

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• SeLinux blocking connection to sshd on Ubuntu 9.10

  - by Barton Chittenden

  When I try to log on to my laptop, which runs Ubuntu 9.10, the server rejects my login attempts. Checking /var/log/auth.log, I see the following: Feb 14 12:41:16 tiger-laptop sshd[6798]: error: ssh_selinux_getctxbyname: Failed to get default SELinux security context for tiger I googled for this, and ran across the following: http://www.spinics.net/lists/fedora-.../msg13049.html Here's the part that I think relates to the problem that I'm having: Quote: What's wrong on my system? Why it's not possible to login even if selinux is in permissive mode? Any suggestions? I'd start by trying to figure out why sshd isn't running in sshd_t (it seems to be running in sysadm_t). Paul. selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mail...stinfo/selinux Yes, sshd is running in sysadm_t: ps axZ | grep sshd system_u:system_r:sysadm_t 3632 ? Ss 0:00 /usr/sbin/sshd -o PidFile=/var/run/sshd.init.pi ls -Z /usr/sbin/sshd system_ubject_r:sshd_exec_t /usr/sbin/sshd Don't know why it's not sshd_t. I didn't modified something. It's a standard installation of sles11 with the default reference policy from tresys. Maybe this code snippet from policy/modules/services/ssh.te is responsible for that: Allow ssh logins as sysadm_r:sysadm_t gen_tunable(ssh_sysadm_login, true) Any ideas? Do you have boolean init_upstart set to on? if not try setting it to on. I do not believe ssh_sysadm_login boolean works currently but i may be mistaken. -- Yeah, setting init_upstart to on did the trick! THANK A LOT! Do you know why this prevents the user from logging in through ssh even if selinux is set to permissive?? Ok, so the million dollar question is "where do I set 'init_upstart=1'"? It's not clear from context which configuration file needs to be edited, and I'm not at all familiar with SELinux configuration.

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• Puppet - Is it possible to use a global var to pull in a template with the same name?

  - by Mike Purcell

  I'm new to puppet. As such I am trying to work my way around the best way to setup my manifests that make sense. Following the DRY (don't repeat yourself) principle, I am trying to load common directives in one template, then load in environment specific directives from a file matching the environment. Basically like this: # nodes.pp node base_dev { $service_env = 'dev' } node 'service1.ownij.lan' inherits base_dev { include global_env_specific } class global_env_specific { include shell::bash } # modules/shell/bash.pp class shell::bash inherits shell { notify{"Service env: ${service_env}": } file { '/etc/profile.d/custom_test.sh': content => template('_global/prefix.erb', 'shell/bash/global.erb', 'shell/bash/$service_env.erb'), mode => 644 } } But every time I run puppet agent --test puppet complains that it can't find the shell/bash/$service_env.erb file, but I double checked that it exists. I know the var is accessible due to the notify statement outputting the expected value, so I suspect I am doing which is not allowed. I know I could have a single template.erb and pass variables to the template, which would work in this case because the custom.sh file is small and not many changes across environments, but for more complex configs (httpd, solr, etc) I'd prefer to access environment specific files. I am also aware that I can specify environment specific module paths, but I'd prefer to just handle this behavior at the template level, instead of having several, closely named directories. Thanks.

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