How to ping to particular ethernet card ?
I have got 2 nic in my machine (192.168.1.2) - eth0 and eth1. Both of them are up. I have allotted eth0 as some ip address and have used eth1 in promiscuous mode (eth1 has no ip address) When I ping to...
View ArticleThanks etckeeper!!
Today it saved my life once again. I don't really know how could i do before having etckeeper installed on my machines EDIT to explain the software: etckeeper keeps an automatic (and manual changes if...
View ArticlePXE, NFS and Kickstart with CentOS 6
Hey there :) I am building a server that could be used to automate deploying CentOS to other machines over the network. So far I downloaded the whole install tree from...
View ArticleNTLM authentication through an NGINX reverse proxy?
does anyone know how to get NTLM authentication to work for a Sharepoint site working through an NGINX reverse proxy? I can navigate to the site but the auth box just refreshes everytime I...
View ArticleHow do I chown for a group of files belonging to a specific owner?
I have a folder with files owned by root or one of a number of other users. I want to chown recursively all the files owned by root to be owned by another user, but can't work out how to do this. Any...
View ArticleGraphing Network Traffic by Source?
Anyone know of a good way to do this? I've got a server where it would be great to know how much network traffic is coming from outside the LAN vs. inside. submitted by ogxela [link] [15 comments]
View ArticleCross-post from r/linux: How do I gain shell access to any one of multiple...
here's the link to the original thread. There's got to be some version of Logmein for Linux, in that a daemon constantly runs on the machine that keeps a connection open to a server, and that an admin...
View Articleis there an easy way to tell from shell prompt if the machine i'm logged on...
i would like to know if there is some easy way to tell from a shell prompt (ssh to remote machines) if the machine i'm currently logged in to (as root) is a virtual machine or not. is that even...
View Articleprotip: shell output is the best tool for manipulating your friendly local...
I gave this advice to one of our users today. He took it as secret knowledge for how to get what he wanted. Only later did I realize that I had subversively convinced him to do of his own will what...
View ArticleBackTrack 5: Does anyone use this for their own security testing?
submitted by n00bsysadmin [link] [1 comment]
View ArticleHow to determine which partition is on which physical hard drive ?
I have RHEL 5 installed using 4 physical hard drives One of my partition is corrupt - /dev/sdb1 ( was showing read only error) After I did fsck, the partition worked properly...but after few mins the...
View ArticleWhat are the best practices for setting up a box to be intentionally...
I want to be a Linux admin, and was always told the best way to learn was to set up a box, watch it be compromised, and then learn from there; so that is what I'm setting out to do. I have a few...
View ArticleInstalling KVM guests via console.
I'm attempting to create a KVM guest and invoke an install via CLI and a serial console connection to the guest. Virt-install if giving me a strange error. cat /home/neil/neil/docs/it/kvm.sh #!/bin/sh...
View ArticleInterview for Linux admin next week. Care to answer a few questions?
Hey all. I have a tech support background doing 2nd line & server/backup monitoring out of hours and also run a web server & minecraft server out of work on a linux vps that I rent (CentOS)....
View ArticleLooking for good resources on the differences between Debian and CentOS?
Title says it all, really. Are there any good resources out there showing the differences between the two? I've primarily been working with Debian but I'll be seeing a lot of CentOS in the future and I...
View ArticleHow to set up SSL/HTTPS on mini_httpd?
I have mini_httpd running on a minimal Debian VPS, for my own personal tinkering only. Although the product page mentions that it's possible to configure SSL, I've not been able to find any...
View ArticleWhat is the best way to secure a web server?
I currently have Fail2Ban, DenyHosts, and Snort set up. Reading around, many people have said to change the ssh port from 22 to something else. Should this be done, if so what port is the best to...
View ArticleNoob admin's dilemma: running a java file from the cron enviroment.
Hi, /r/linuxadmin! So, I'm a recently hired sysadmin whose experience with sysadmin-like things has been.. extremely limited. I was hired mostly because I know Linux and Google enough to be the project...
View ArticlePartitioning using Debian preseed.
'm trying to make a Debian preseed disk partition recipe involving an encrypted logical volume. The goal is a 40MB /boot partition, a 1100MB / volume, and the balance of the disk on an encrypted volume...
View ArticleHow to start Dovecot?
I'm building a web server to host multiple websites. I got everything working except the mail server. I'm using linode to host my vps and I've been following their tutorials. FYI, I'm using Ubuntu...
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