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HELP: A couple of my sites are showing generic search pages

I don't really know where else to post... This server has been up for over 500 days without issue. Today I got a pingdom notification that it was down. I went to a couple sites (that are on the same...

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How would you sed replace this random string of numbers?

Say I had a text output like this: text[10000] text[742] text[98671] text[5] text[9999999] Where it's always "text[$RANDOM]" where $RANDOM is a random number inside of brackets immediately after some...

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Trouble getting NIS to start in OpenSUSE 12.1

Hey all, My company uses OpenSUSE 11.4 on our collection of 100+ workstations. I am currently looking at the possibility of rolling out 12.1. I've begun creating an image, but hit a snag towards the...

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Advice on Squid Delay Pools?

Coming to a new job with a Squid implementation which is new to me. There's some discussion about Delay Pools and I'm reading up on them. Anyone out there have experience with it? Any particular...

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Linux server NTP "no server configured"

I've inherited a linux server that had NTP running happily as a client (syncs to some webserver), and is the machine that a windows domain looks to for syncing their clocks. Something seems to have...

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Linux Admins: What's your fantasy Linux server hardware build? What new...

submitted by realdev [link] [18 comments]

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LPIC / Linux+.. Are these certifications worth obtaining before going after...

submitted by realdev [link] [11 comments]

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Need to limit jboss application admins' access, how much access do they need...

Right now, they all know the root password and of course have full access to the systems. They use root for all their work and I know little to nothing about jboss. What access do I need to properly do...

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How do I delete a matching line, the lines above and those below in the section?

In nagios config define service{ use generic-service host_name xxx.xxx.com service_description xxx Status check_command check_http!xxx.xxx.com -S } I want to delete the entire section as given above...

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Is there any way to allow non-admin users to mount network shares without...

Hi guys. I'm trying to write a script that mounts users' Active Directory home drives and I'm having some trouble. We're running RHEL 5 and we don't use Gnome/KDE or any sort of desktop environment. We...

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Page allocation failures - how worried should I be?

Our NIS/NFS server is getting page allocation failures relatively frequently in the syslog. This came to our attention when machines started freezing up because they couldn't communicate with the...

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SSH login hanging on CentOS

Our developers have a test machine, which is a VM running CentOS on an Ubuntu host machine using KVM. All of a sudden, actual clients, who are using the test machine (don't get me started), are seeing...

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Invoking another script within a script... adds quotes to arguments?

I've run into a problem while trying to migrate a ton of Solaris ksh scripts to linux... I have a line like this: /path/to/script -a $arga -b $argb -c "$arg1 $arg2" Problem is, for some reason what the...

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question: a good book on webserver administration?

I make websites, and sometimes i like to work with my own VM. I have been using linux for a while, and i feel i have a decent understanding on how it works, but when it comes to setting up a webserver...

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Log file monitoring?

Fellow admins, are there any tools that you would recommend for log file monitoring and alerting? Specifically, I'm looking for something to run locally on various servers that would let me monitor for...

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Something similar to Virtualmin?

I have a vps running ubuntu 10.04 LTS with a LAMP stack and I'm looking for web end management. I've tried installing virtualmin through the script, but it gives me fatal errors with nothing I can see...

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SSH input/output logging?

I've got a couple of Linux servers going (mixed distros, mainly Red Hat and Debian based though) that are accessible to a group of people... I need to monitor everything that happens in SSH, both input...

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ask r/linuxadmin: how do you upgrade your servers?

I dont have much experience being a linux sysadmin but im in charge of a few servers in my office (about 15 or so). Almost all of them ubuntu's and debian. most of them kvm machines and a few physical...

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SFTP without SSH?

I help out on a VPS that we're trying to keep well locked down. SFTP seems to be the most secure method for us to upload files but we don't want to give each website account jailed shell access. How...

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Had to restore a post-hacking back up. How can I be sure I've removed all the...

We are using a Cent OS 6 WHM VPS. We don't have a backup previous to when we discovered the hacking. We have cleaned up the exploited entry points we found, changed passwords, tightened security...

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