I just updated my CentOS machine from 5.2 to 5.3. After rebooting, I found a few commands are not responding after the update.
The non-responding commands are:finger, groups,chown I did nothing after the update.
I got to the prompt in the subject line. Then I typed grep /sounds/ and return.Then the program stopped responding to commands. I could type things, but nothing happened. Not even when I typed kill -9 and return.Why did the thing freeze up? I don't think there is folder /sounds/.
View 2 Replies View RelatedI am learning linux commands. I just wanted to see what happens when I type
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The screen became blank. Keyboard was not responding. I couldn't do a proper shutdown. I switched off computer by pulling out the plug. When I restarted, I heard a series of beeps (approximately 10 beeps). Then I was dropped to the grub prompt. The problem now is I can not type anything into the grub prompt, because the character 'c' is continously printed across the screen like this:
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I couldn't stop the character 'c' from printing (I tried pressing Esc, Ctrl+C)
The solution is easy. I can reinstall grub from a livecd. Or even reinstalling the entire operating system wouldn't take more than 30 minutes. But I want to know:
1) What exactly happened to grub? What stage does this error belong to (1, 1.5 or 2)? What is the error number?
2) How can running "sudo kill -9 -1" affect grub?
Is anyone else having issues with their mouse/keyboard responsiveness via Synergy after upgrading to 11.04?
If I plug mouse and keyboard directly into the desktop the issue goes away. But when I connect via QuickSynergy and share my mouse/keyboard the mouse is very slow and has low sensitivity.
For some reason yum and rpm dont do anything when i run yum or rpm commands I cannot reboot at this point.
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The server is a Dell 1650 1U server, which a fresh install of CentOS 5.3, formatting the drive in the process. It has two e1000 NIC's and based on the wiring eth0 is the public segment and eth1 is the private segment.Both nic's make a solid 100mb connection to the cisco switch, and I can ping both interfaces "just fine".
If I run nmap on a remote PC that is also dual-homed in this fashion, I get the same response as to which ports are open (essentially everything since I disabled iptables temporarily to troubleshoot this issue) on both interfaces, which would be the expected result.But... and here is the source of my confusion... I can see the server by pinging it, I can use SSH to make such a connection and log in, but I cannot get apache to "answer the phone" so to speak.Runing "tcpdump -i eth0" shows me that my browser on a remote PC is attempting to connect, but without reply.If I send my browser to the ip address of eth1, I get the default CentOS new web server page as is the norm.Nothing shows in my /var/log/httpd/access_log or error_log at all... apache simply isn't answering.The httpd.conf is the original, and the one line I attempted to 'adjust' was the "listen 80" line, which I added the ip addresses specifically, but that didn't change anything.I am unsure how nmap can indicate the port is open and there is a service behind it, when on the same PC that ran nmap, I cannot connect at all.Might anyone have a clue to toss me so I can work to figure this out?
after a update to 5.3 from 5.2 via the built in updater the system stops responding to visitors from the outside, http that is, but heres the odd part, if i say run firefox on the server the connection works also for some reason if i'm on the network with my own computer the connection seems to stay open but as soon as i stop using these the server seems to drop the conenctions, but as i said as soon as i go via my comp to the server via say ie it works right away.
this i tried yesterday:did a cold boot to see if some update had problems and actually needed a reboot even if the updater didn't say, after it started the connection seemed to be open for a good while, and not untill this morning from a outside source the connection is droped again, not been on my comp nor logged on on the server today yet.the install only has on it what i got from the dvd, and as far as i know it has all the updates on it since 5.3 came out.my network is built up like this:
modem
|
firewall-switch-computers
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I was wondering if anyone else has noticed the following behavior lately. Sometimes, when I enter a directory, during the generation of thumbnails nautilus freezes up with 100% cpu use. It has to be killed. It will then happen whenever I try to enter that specific directory with nautilus (although access with Konqueror or command-line is fine). Turning off the previews allows nautilus to enter that directory (usually... once even that didn't work). If I create a new directory and move all the files from the troublesome directory into the new directory, I can enter the new directory with nautilus and it works fine, even with thumbnails turned on. I can even rename that directory to the same name as the problematic one had and it will work. Long ago this behavior used to happen very rarely, then it seemed to be fixed, and now it is happening again but fairly frequently.
I was just wondering if anyone else has experienced this and, if so, do they know what is causing it? A simple solution is to turn off thumbnails but I'd prefer another solution.
I got this error when opening phpmyadmin, I check that my mysql is keep automatic closed.
#2002 - The server is not responding (or the local MySQL server's socket is not correctly config).
I am running CentOS 5.2 on a server here in my home. It runs Dovecot and Postfix and also serves as a website host for a small website of mine. Everything works fine. POP, SMTP, Webmail, WWW, all works great and has for ages.Here's the issue. I recently reinstalled a clean copy of Windows 7 on a workstation in my home onto a new harddrive(I still have the old drive int he machine so I can boot to it as well). I setup the Windows Live Mail client to send/receive mail with my mail/web server. However, it won't connect to the POP server on my server machine.Here's the kicker. If I boot to the old harddrive that is running Windows 7, it connects fine to my mailserver and can send/receive just fine. I've checked, rechecked and rechecked and all mail settings on the mail clients on both drives are identical.
Note: The installations of Windows 7 on both drives is identical. Same computer name/ same credentials, same IP, etc. However, as I stated, I can send/receive email with my server if I boot to my old drive, but if I boot to my new drive, I cannot send/receive.
After I login to KDE I see an error dialog saying,"ESC is already running, but is not responding. To open a new windows, you must first close the existing ESC process, or restart your system."
What is ESC and what can I do to stop this error dialog from popping up right after I login?
I am bit new to Linux and have setup caching-only name server with Centos 5.5. when i do dig server, it provide resolutions. but when i use the server IP as DNS on my windows client, it says, "connection refused" on the NSlookup output. (IP table didn't enable) My server Ip is 192.168.1.253 and bellow is the configuration of "/var/named/chroot/etc/named.conf"
options {
listen-on port 53 { 127.0.0.1; 192.168.1.253; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt"; .....
Yesterday I tried upgrading from 10.04 to 10.10 using the upgrade manager. About half way through, my computer froze up and the only thing I could do was reboot my computer. It had already finished downloading all the upgrades and the computer froze while it was trying to install the upgrades. When I boot my computer and the Grub screen appears, I chose the Ubuntu OS (I have a dual boot system of Ubuntu and Windows XP). When it goes to boot Ubuntu, it gives me a blank screen and then a box in the right hand corner that says this:
"Install problem! The configuration defaults for GNOME Power Manager have not been installed correctly. Please contact your computer administrator."
Then the screen remains blank. No cursor, no mouse pointer, nothing. I have researched this error message and it is either caused by not having any free space on my hard drive or that the upgrade packages weren't installed properly. In my case, it could be both. It is definitely the packages not be installed properly but I don't know how to find out if there is no free space on the hard drive partition for Ubuntu. Some of the solutions are to use the following commands in the terminal:
sudo apt-get clean
sudo dpkg --configure -a
sudo apt-get --reinstall install ubuntu-desktop
The last command might cause me to lose previous settings, so that would be a last resort if the first two commands don't work. So my main issue is that I cannot open a terminal. My computer is set up to automatically log in. When my computer boots, I have the Grub screen which allows me to choose the Ubuntu OS, Ubuntu in recovery mode or Windows Xp. However, when I choose Ubuntu in recovery mode and select "c" for the command line, it does not recognize the "sudo" command. Same when I choose the command line in the regular Ubuntu OS. When I type "sudo apt-get clean" (without quotes), it says "Sudo command not found." I cannot find the command lines that would be the equivalent of a "sudo" command to use in recovery mode.
If you hit the TAB key while in the command line of recovery mode, if gives a list of commands but I don't see a way to open up a terminal window. For example, when I type terminal_input, it just says, Active: Console, Available: usb_keyboard." I have also tried selecting the Ubuntu OS, waiting for it to boot and then hitting Ctrl+Alt+F1 but it does not give me a log in screen. I have tried Ctrl+Alt+F2 and Ctrl+Alt+F7 and neither of those give me a log in screen either. It is just a blank screen. No cursor or mouse pointer is visible. All I want is the ability to open up the terminal so I can run "sudo apt-get clean" and "sudo dpkg --configure -a".
I just started setting up a linux box in the office...I have some experience with ssh commands but not setting up a linux system and stuff.The box is connected to our network but I have no clue how to make windows & osx talk with it. How can I go by doing that and also setting up an apache server to be able to connect through network. Right now I have apache/linux/mysql running it works when i go to localhost, but I would also like to let all the computers in office to access it. I would guess that will deal with virtual host which I know how to setup. I just need to setup an IP.
View 19 Replies View RelatedI have root access on this CentOS 5.5 machine but I am unable to run administrative commands such as service and chkconfig because it says the commands are not found.
Do I need to install additional packages or grant myself privileges that I don't have to run these commands?
I am trying to determine if I should upgrade PHP's PEAR on my server. I am trying to check the version of PEAR currently installed. I am getting the following error when I use the pear -V command:Warning: realpath(): open_basedir restriction in effect. File(/tmp) is not within the allowed path(s)(/usr/share/pear:/usr/share/php) in System.php on line 459I tried adding /tmp to my php.ini file, but then when I use the pear -V command it doesn't do anything. I do not get any errors or anything.I am also trying to install symfony and have the same situation described above when I use the following command: pear cannel-discover pear.symfony-project.comDoes anyone have any thoughts? If not the solution, does anyone have any suggestions on how to begin troubleshooting this?
View 2 Replies View RelatedI have a problem while trying to get rpm fixed I removed it then it removed yum also. I was able to get rpm installed and tried to install yum there was a bunch of depency files i had to install. After that then every command results in Segmentation fault some commands work like pwd does but not ls, rpm, vi and most other ones ive tried. server is still up and running.
View 3 Replies View RelatedOur CentOS 5 server had a weird issue last Friday. We couldn't run any bash commands, such as ls, vi. It said that it could not find /bin/ls. The only commands we can run are internal commands, such as ps, cd. After we reboot the server, everything is back.
I don't know what's wrong with it. Does anyone give me a explanation?
I would like to find documentation on all the available terminal commands and syntax for CentOS 5.
I have googled and looked through the wiki and found nothing about the terminal to my ability.
As for what I am referencing by commands:
sudo: I get the su means super user
cd: change directory
rm: remove, I don't know how to remove folders.
General navigation and using the terminal to create files/directories/open file editor/etc..
For example, when I want to have an identical line to the above line, I must press "yy" and then P (or p). Could somebody give me the list of such commands.
View 6 Replies View RelatedFor some reason, when using this kickstart file the commands in the post section chroot is not executed. I used the ksvalidator to check the syntax and its correct.
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# Kickstart file.
install
cdrom
key --skip
lang en_US.UTF-8
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Where can I put commands which should be executed just before
- logoff
- shutdown
I think there must be somewhere an opposite script to
.initrc
or
.bashrc
I have the following cron configuration in the 'crontab' file:
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=<--- REMOVED -->
HOME=/
# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cron.monthly
20 16 * * 1-5 root wget [URL]
07 30 * * 1-5 root wget [URL]
11 30 * * 1-5 root wget [URL]
My focus is on the three WGET commands. The problem is the first one works fine, runs at 4:20 p.m., but the other two never run! If I visit [URL] it works fine but cron never runs it.
I am getting Illegal instruction error commands like yum:
I have centos 5.3
I'm running a Counter Strike 1.6 Game server on my centos 5 VPS. I can get it to run by simply switching to the directory, then doing: ./hltv Now, when I do that, it obviously closes when I exit Shell. So I do the following and it gives me errors then. screen -A -m -d -S hltv ./hltv My question is, do I need all of those commands after screen? I just simply want it to not close once I exit Shell.
View 5 Replies View RelatedI am trying to copy an updated splash.xpm.gz at the end of a system build but everything in the post section is total ignored.
#--- Post-installation script
%post
#!/bin/sh
#...Mount the installation CD
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As a premise let me say I'm a debian guy so I'm not really an expert on every aspect of how Centos work and if the following questioms seem dumb, I'm sorry :D What I have to for a school project is to use Xen. After two days of cursing I've managed to install it correctly and so I've installed a domU Centos 5.5.
Now I need to install sysbench on this domU and run some tests. I've found this guide: [URL].. But I can't find some commands. Basically this is what I have to do
# tar -xvzf sysbench-0.4.12.tar.gz
# cd sysbench-0.4.12
# libtoolize --force --copy
# ./autogen.sh
# ./configure
# make
# make install
the problem is it doens't find libtoolize. I've tried to search it with 'yum search" but with no luck.Where can I find this package? Or is it a command include in some other package? In that case how can I solve this problem? Next problem is autogen.sh. It says I don't have aclocal but automake in installed as a package.
I've had a server setup working perfectly for the last 2 years. Today we installed a newer version of postgresql and recompiled apache/php.
Postgresql will not start now.
"service postgresql start" = /var/lib/pgsql/data is missing. Use "service postgresql initdb" to initialize the cluster first. To initdb we need to be as user postgres.
"su - postgres" = "no file or directory"
In /etc/passwd = postgres:x:26:26:PostgreSQL Server:/var/lib/pgsql:/bin/bash
how i can login as postgres user and enter these commands?
5.5 (64bit). My server goes into non responding state where I can't telnet, ftp or ssh server whereas PING is the only thing which works at that time. I need to hard reboot server to get it back online. This is happening very frequently in fact yesterday and today server went inaccessible. which log file should I look into to find out the reasons of this inaccessibility?
View 2 Replies View RelatedI have an intel DP35DP motherboard - ICH9 southbridge - set to AHCI mode. Working fine under 5.2. Yesterday I updated to centos 5.3, and got kernel 2.6.18-128.1.16 and now it can't boot. It hangs trying to read sata1 with DRDY errors and exceptions.So then I installed 5.3 from a DVD onto a new drive, and got kernel 2.6.18-128. This worked, most of the time, but occasionally gave me this error. I then updated my BIOS, and the error went away.Then I updated this new working drive to the latest kernel (yum update again) and got kernel 2.6.18-128.1.16, and now it wont boot again, with the same message.
ata1: failed to read log page 10h (errno=-5)
ata1.00 exception Emask 0x1 SAct 0x1 SErr 0x0 action 0x0
ata1.00: irq_stat 0x40000008
ata1.00: cmd 60/08:00:61:4b:38/00:00:3a:00:00/40 tag 0 ncq 4096 in
ata1.00: status: { DRDY }
ata1.00: revalidation failed (errno=-2)
ata1.00: revalidation failed (errno=-2)
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