Quantcast
Channel: linuxadmin: Expanding Linux SysAdmin knowledge
Browsing all 17825 articles
Browse latest View live
↧

Suggestions for web based IPtables management

I have a server in the DMZ that I have iptables on that I want a gui (preferably web based) to manage it. I only need it for IPTables, webmin is out of the question. Any suggestions? submitted by...

View Article


Automating SSH to allow creating a user, and adding the keys so they dont...

This so i can ssh into a box using the sysadmin account, su to root, and run a script to create a usern, and then set up authorized_keys, so that i dont have to use passwords.SA.txt contains about 500...

View Article


Stop any outbound email attempt in Postfix

I'm using fetchmail to get mail out of a pop box (off server) and deliver it locally using Postfix. The Postfix server has occasionally tried to bounce/send status deferred messages back out to the...

View Article

vmxnet-config; a bare-bones "service" meant to ensure RHEL5 VMware guests w/...

submitted by IConrad [link][5 comments]

View Article

Preventing a DOS attack (x-post from /r/linux)

When it comes to protecting your server from a DOS attack, what method(s) does everyone use?Configuring iptables/ufw/etc to handle everything?Allow software such as CSF (ConfigServer Security &...

View Article


How can i make a script/service/application start-up on system boot on a...

I've tried adding something like this to my /etc/crontab file:@reboot root screen -dm su steve -c "/path/to/bla -c /path/to/bla.cfg" but it isn't running at all :(I'm also finding it hard to find any...

View Article

Can I live without emacs?

OK, so maybe the title stinks. I am a linux admin who doesn't use or know emacs. I use vi. I do everything in the terminal via ssh, no x windows. I want to know if there is some reason I need to know...

View Article

ALL the proxy configs!

Insert mental image of that meme hereSo, I know I'm making this harder than it needs to be. Trying to set up linux VM in an office that uses a proxy server with authentication. The linux side of things...

View Article


Ext4 and Software RAID1 follies

I am building some small servers. I wanted to stick a FS on a RAID1 configuration, so I created my disks like so:use md to create RAID1 config, create /dev/md0use fdisk to create partition...

View Article


Recommendation for a quick start intoduction to AWS EC2 EBS etc..

I need to get up to speed on the basics of Amazon Cloud administration. I am a fairly savvy Linux admin, very comfortable with the shell. Recommendations please? submitted by gleventhal [link][3 comments]

View Article

Anyone know of a way to stop winbind from trying to register all IPs to DNS?

I want to just have my static A records in my AD DNS environment, but for some reason winbind takes it upon itself to register every IP on the box to DNS, which is very messy when boxes have many IPs....

View Article

Documenting VMs

I have decided to sit down and document every VM I have now, was wondering if anyone had metrics to add to the list, my current list:OSversion (for windows 7, Xp etc for linux kernel)automatic updates...

View Article

kernel: [Hardware Error]: CPU:0 MC4_STATUS[-|CE|MiscV|-|AddrV|CECC]:

So, randomly this message appeared on the console of one of my servers. I have been frantically searching online and all I can find is some references to bad ram. Is there a way to actually find what...

View Article


HAProxy best practices - require its own server?

I just finished reading Scaling PHP (http://www.scalingphpbook.com/). Tons of great information. My question is about HAProxy. Does it need to be its own dedicated server and can it be ran for load...

View Article

Good tutorial on DNS/BIND and best practices for PTR, CNAME, SOA, etc records.

I was wondering if anyone had any links to a good tutorial on using DNS/BIND. Hopefully they will include best practices for the various DNS record types and how best to Implement a DNS server....

View Article


So, just out of curiosity, what sort of setups do you guys run at home?

Do you have a home server? What OS does it use? What OS does your primary workstation use?That sort of thing.Just curious, is all! Let's not start a distro war. submitted by discuss_this_ad [link][59...

View Article

EU based storage service: comments and testers

Hey everyoneWe are currently starting a new EU based storage service that is targeting remote backup and offsite storage. We're comparable to rsync.net and other providers as we also offer ssh/scp and...

View Article


Creating Guides to Enterprise Level Security for Novice to Intermediate Linux...

Dear reddit,As an intermediate Linux user and former organizer, I have often sought out beginner level guides to executing security measures. Unfortunately, these guides don't exist on an enterprise...

View Article

Re-share a network share? Is there a good way?

Say you have 2 file servers, and a bunch of client machines pointing to samba shares on server1. Now assume you need to migrate the data from server1 to server2, preferably without having to...

View Article

Prevent local routing within Linux kernel?

Bear with me a minute. Is there any way to force Linux (I'm using CentOS 6.2, fwiw) to not use local IP routing when connecting to an IP address hosted on the local box?Here's my setup:Server-A at...

View Article
Browsing all 17825 articles
Browse latest View live