Server :: Server Hangs When Given Find Command
Dec 19, 2010
I am ClearCase Admin, new to Linux administration and our development environment is in linux servers. I have found that our development server which is RHEL 3 (also ClearCase client) hangs when user gives find command.After some time of execution of the find command the server hangs. We have to hard-boot the server.Is this the normal behaviour of the Servers? This server which I am talking about is highly used.Sometimes 120 or more terminals will be opened and few compilation will be happening in the server. And same single user some times opens multiple terminals and works simulataneously.We have been monitoring the server and found out that during the workdays CPU usage % goes very high.
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Oct 4, 2010
I have been trying to set up an LDAP server for a development environment as part of an internship for a week now, and I cannot get past this point. I have been following the 10.04 server guide to set up LDAP here: URL...Once I get to the following point in the guide, it just hangs:"As an example of modifying the cn=config tree, add another attribute to the index list using ldapmodify:"I've been working on this for a week and can't understand why this won't work. I am fairly certain that I've followed the guide to a 'T.'Any idea why am I receiving a permission denied error? Is this a permissions issue with one of the config files?
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Jun 15, 2011
I have one perl sctipt which generate cfg file with ^M in all the EOL. I need to remove the ^M from the cfg file. How can i remove that from the perl script itself. I have tried the following unix command in perl script,
system("perl -pi -e 's/^M//g' *.cfg");
It doesn't work.
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Jun 21, 2011
iam trying to sync file server data into backup server machine by command- rsync -avu path/of/data ipaddress-of-backup-server:/path/where/to/save after running it ask for root password and manually it is successful.but i want to make it automatic.for that i also tried cronjob and also generated authentication key but iam not successful in login automatically..anybody know how to authenticate root to login for storing data in backup server.
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Jan 9, 2011
uslookup command is giving me an error.otherwise dns is working ok.when i try to look for server from client using.
Code:
I got the following error :-
Code:
But
Quote:
Is working fine.
I think there should be problem in reverse zone file so i am posting my reverse zone file.
Code:
What is meaning of this error?
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Sep 6, 2011
I've started facing the weirdest problem. I have to restart the ethernet interface a couple of times a day and everytime i do that the server locks up completely and i have to hard reboot it.info: recently shifted to a new server, all new components and new installation, OS version CentOS 5.6
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May 24, 2010
I am working on linux server with below specifications.Linux EDT 2008 i686 i686 i386 GNU/LinuxWhile checking the status of the server using the command 'opmnctl status' and when server is down the output is not getting redirected to file.I m using the command as,opmnctl status > abc.txt.
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Jan 3, 2011
My server is probaly hacked and sending spam emails. I see them randomly in maillog (/usr/local/psa/var/log/maillog, server has a plesk panel), sometimes a few in a long time, sometimes a lot of them.Here is a sample of it:
Jan 4 00:47:08 acv360 qmail-remote-handlers[17662]: Handlers Filter before-remote for qmail started ...
Jan 4 00:47:08 acv360 qmail-remote-handlers[17662]: from=root@acv360.com
[code].....
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Nov 28, 2010
I'm using ProFTPd as my FTP server on a CentOS 5 box. Since updating to version 1.3.3c, I seem to have very specific problems. Connections work quite fine with about any FTP client out there, including the basic ftp command from the Linux prompt. However, when trying to connect to that server with LFTP, things go wrong. When connecting, all I get is [Connecting] then [Logging in...] and then nothing. I have to add that SSL is forced off in lftp.conf (I read it could be the problem). I sometimes get a counter for reconnection, but it never works.
The command I use in lftp is : open -u <user>,<pass> <server_ip>, the ls for lftp to establish the connection. I don't see anything at all in the server's log. I just see "FTP session opened" and "FTP session closed" in /var/log/messages" and nothing in /var/log/secure. I can give you a strace if needed. Please keep in mind that the server WORKS with anything but LFTP and NCFTP (which I also tried).
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Apr 1, 2009
I did a basic installation of Debian, which will be used for a mail server. I Installed the bind9 and did the configuration of the zones and created the files in the directory / etc / bind.
After the process I typed the following command to test my DNS:
nslookup mail.hotelpart.com and presented the following error:
Easier to stay I put my files in message: The files named.conf, db.hotelpart.com and db.111.20.11.200.
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May 27, 2010
On a remote system, when all you have is the ssh CLI -
How do you find out the ip addresses for:the Gateway
the DHCP server
the DNS server
Don't need to make any changes.
Which commands will display this info?
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Sep 16, 2010
I currently run Windows Server 2008 at my office, but I'm looking to test Samba as a PDC for future reference/consulting work. Before I go and try to configure Samba, I wanted to ask if anyone can think of pitfalls I would run into and perhaps recommend a better setup:
<10 PCs running either Windows XP, Vista, or 7.
VirtualBox running Debian (planning on swapping for Fedora) on a Windows XP Home computer.
Computers are connected to a large switch, which is connected to a wireless router. The Windows server doesn't employ ICS (essentially is just a $1500 PDC ). where I could find a .ovm format image of a windows server installation? I'm guessing vmware would work in this regard, but I'm not fond of using purposely crippled software.
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Nov 28, 2010
I'm trying to design an inexpensive large scale DNS server but fail to find any metrics or methods to base scalabilty.Can anyone offer information on building a stable dedicated DNS server? That might be able to scale well.
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Apr 1, 2010
I was having so much trouble with ubuntu 8.04 that I deleted off my computer and did a fresh install of 9.10. I downloaded the 64 bit iso from the internet, burned it to a disc and installed it. When it asked if it should be the server version I thought I said no. Now when I boot it only boots to the server version and all I get is command line. Can I get out of this and get my regular ubuntu screen back or did I install the wrong version?
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Jul 8, 2011
I am not seeing what i am doing wrong here, but here goes:
From my server I need to run a command for backup on 25 remote servers (through a script). Now I have pushed the public keys for remote ssh connectivity on all of them and it works ( I can push files using rsync without the need to enter passwords on the remote servers), howver, I need to run the following command:
ssh odsadmin@10.139.111.1 'cp -a /var/www/life /var/www/life-v4'
when I run this command, I keep getting asked to enter the password, I even tried putting sudo in front of the cp, but still get the request to enter the password.
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Jul 16, 2011
I am unable to use ncftp command I have defined all variables used. i have to copy the data to another server FTPS. When i am executing this command it is throwing error
ncftp -u : option unknown
I am copying total script what i am executing in my server. Please some one tell me is there any pistake in using the ncftp command , or tell me some other commands to copy data to remote server
BAK="/opt/DBbackups"
NOW=$(date +"%d-%m-%Y")
FTPU="username"
FTPP="password"
[code]....
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Jul 14, 2011
we are synchronizing server time with ntpdate command in cron.how often should it run?
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Oct 29, 2010
In oreder to run an application software on RHEL 3 ES server, I created a link forcefully using following command from root id:
# cd /lib64/tls/
# ln -sf libc-2.3.4.so libc.so.6
before that I copied file libc-2.3.4.so from a workstation with OS RHEL 4 WS so that a link can be created.
Now I am unable to run any command except cd & pwd and it gives error messaage as given below:
ls:relocation error:/lib64/tls/libc.so.6:symbol _rtld_global_ro,version GLIBC_PRIVATE not defined in file ld-linux-x86-64.so.2with link time reference.
Before running this command libc.so.6 was pointing to libc-2.3.so file in path /lib64/libc-2.3.2.so.
I am now unable even to open a new window on the server.Please send me some solution as early as possible because this server is running production data and many users are runnig application on this server.
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Jun 30, 2010
Whilst I have used GUI-based Linux distros for the last few years, I am now struggling somewhat when it comes to setting up a server from the command line. All the howto's I've read so far tell you how to set up certain things, but I don't know what I actually need to set up.Rather than asking the same questions all over again on a forum like this, and generally being a bit of a noob, I wonder if there's a resource somewhere that someone could direct me to in order to know what I need to do to set up a fileserver.
The hardware is all done, and I will probably set up a router distro like IpCop to manage the network, but I'm rather lost as to what packages I need, and how to know what the server is/isn't doing.I've used plenty of command lines in the past (ms dos, amiga dos, BASIC programming etc), just not a linux command line. All I've ever done is mount a few drives, use nmap and started x
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Mar 29, 2009
I was using Red Hat 7.3 forever and decided it was time for a change. I went to Fedora 10 but it was really buggy. CentOS 5.2 is VERY stable.Here is my problem.The server is command line only -- I tend to hate GUI"S.I setup Samba no problem disabling the ports needed through the firewall and that was straightforward.CUPS is a nightmare for me since CentOS locks down the cupsd.conf and then the firewall does its thing. I allowed port 631 through the firewall but then got lost on the cupsd.conf. It's been too long and the old redhat one won't work with CentOS (not surprising since it's a VERY old system) straight-forward CUPS tutorial for a command line interface. I just need it to be:
a) do this
b) do that
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Jun 26, 2011
I'm trying to setup DNS server. But i'm getting this strange problem.normally nslookup and workin for other sites.problem only with my local setup. can't see what i'm doing wrong.i've had setted up DNS server before but had no problems.can't see any solution on google.
So...
centos 5.6
bind 9.7 (from repository)
[code]...
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Jul 27, 2011
There is server with 3 hdd mounted to /h1 /h3 /h4 and its a file server contain 3 TB of data (must of them are in zip or rar format), We need to move whole files to the new server.I need a command or bash file to show me the name of files in these partition and the patch of them in the txt log file. (So i can create the link and download all of them in new server with download manager).I tried rsync but its too slow...After we created the links of whole files we will deny all ip address exclude new server IP address in nginx then we can transfer them all fast. (The servers are in 1 datacenter.)
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Apr 25, 2010
I read here about NO_LINGCLOSEhttp://httpd.apache.org/docs/2.2/misc/perf-tuning.htmlbut i can't find http_main.c on my server. may be the filename is deferent?
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Sep 3, 2009
When i checked my server in today morning,i found server was hang.
How can i find whether it is hang or not?
Where can i find the log from which i can find the exact time?
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Feb 9, 2011
Having a problem on all of my Ubuntu machines when i goto this address: [URL]... i get a "server not found Firefox cant find the server [URL]... this is only happening on Linux i have a dual boot on an epc with vista and it loads the site. normally i wouldn't even care but my girlfriend will be taking on line classes here and i need to get this to load.
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Apr 14, 2010
I boot it and let him stay alone without even log-in,then thru my local LAN I access the server with SSH or FTP, everything just works fine,but if I just let the server idle for a while, I stop being able to login to the server again.I get no response, and when I go check it , monitor is black, like its sleeping,Then I just press a key on the keyboard, it wakes, and I can login from the server itself.so it does not crash.But login from another computer still doesn´t work,I have to reboot the Linux server to work, and all this idle thing starts over again.
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Oct 30, 2010
Under GNOME, the X server hangs about every hour under regular use. When this happens, I can usually move the mouse pointer, but nothing else. I can't click anything, I can't type anything, etc. I have CTRL-ALT-Backspace configured to restart the X server, and that works if I do it before it hangs: after it hangs, that doesn't do anything. The only thing I can do right now is reboot the entire machine.How can I figure out why it is hanging? Also, can I somehow restart the X server without rebooting the entire machine?
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Apr 11, 2011
I'm running SpaceWalker which executes this perl script
PHP Code:
echo "Waiting for tomcat to be ready ..."
while [ -f "/var/run/$TOMCAT.pid" ] ; do
/usr/sbin/lsof -t -i TCP:8009 -p $(cat /var/run/$TOMCAT.pid) > /dev/null && break
sleep 1
[Code].....
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Jan 7, 2010
I have vsFTPd running on my server. If I connect via 127.0.0.1, then all is well and I can use the "ls" command to get a directory listing. However when trying this remotely, the FTP client hangs and I do not get a directory listing.
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Jul 24, 2010
I servers hangs after working fine for 2 days. I will not get any display after server hanges and after restarting the box, i will be fine again.
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