Backup best practices
Alright people now this is the spiel. I am trying to compile a list of ressources regarding backup strategies. Basically I am looking for anything related to best practices and state of the art...
View ArticleLimiting disk io of VM's (Qemu/KVM) Centos 6
Need help trying to limit disk io of vm's.I believe the command to limit a whole domain would be:virsh blkiotune <dom> <weight> Is this right? and what exactly does it mean by weight?Thanks...
View ArticleHow can I determine which of my hard-drives has a crappy connection?
So I recently bought a new case with a 6 front-loading drive trays, all of which I filled with hard drives. All the drives are in a RAID, but it looks like there are problems.On the console of the...
View ArticleBuilding a Custom Linux 10Gb iSCSI SAN
(If this belongs somewhere else, I apologize up front, just point me in the right direction)I've started a little side project at work and was looking for input on anyone who's been down this road....
View ArticleServer not accessible due to CPU usage
I had a VPS server that got rooted before so I moved to a new VPS. Right now I am having an issue with mysql and apache. I am not sure if its a configuration issue or got hacked again. The issue is...
View ArticleOfficially part of the club!
Hi /r/linuxadminSo a couple of hours ago I got accepted into a Linux SysAdmin role, I've been working the general helpdesk up until this point but I do a lot of home study in my spare time. If I'm...
View ArticleAllowing access to ports blocked by iptables when connected via VPN
Hey /r/linuxadmin,I've been stuck with this issue for a while, hoping to get some advice here.I have a set of basic iptables rules allowing access to certain ports. Here's some of the rules:-P INPUT...
View ArticleIs it safe to use the root group for administrative users that are not root?
I want to create some administrative users that will have full or nearly full sudo privileges anyways and I want to make it easy for those users to see any part of the file system they want without...
View ArticleWhat's the easiest way to reliably download 100's of GB's of small files from...
I am planning to download a large amount of files (each about ~20-250MB) with a total size of a few hundred GB from an FTP server that I get about ~250-350 KB/s of download speed. I expect it to take...
View ArticleSetting up stunnel between redis and postgres
I'm trying to setup stunnel between redis and postgres, and I have no clue what I'm doing. Can someone point me in the right direction? submitted by spazoyd [link][14 comments]
View ArticleScript SFTP without key-based auth
Yo dudes.Ran into an interesting issue today. Couldn't use key-based auth on a remote server that only allows SFTP (so no SSH, no SCP, no keys, etc).I had to script it, so I did a bit o' learnin about...
View ArticleDealing with recent WP pingback DDOS-attacks using iptables
Last two weeks there has been an increase in the use of WordPress sites pingback feature to effectively launch a distributed DDOS with little effort. These attacks mostly tie up sessions on your...
View Articleiptables n00b, NAT gateway doesn't work well with a 1:1 DNAT https
Hey dudes,I have a linux box which acts as a NAT gateway, and as this host has a WAN IP, I added some DNAT rules to point to my internal mail server(Exchange).The hosts which are set up to use the NAT...
View Articlebar graphs?
I'm looking for something along the lines of rrdtool to show bar graphs of current numbers (as opposed to showing the numbers and how they change over time.Know of anything like that?I want to show...
View ArticleLooking for an inventory tracking system to track lots of different items...
Hi /r/linuxadmin .I'm just wondering if anyone can point me towards a Redhat / CentOS based inventory tracking system. On and off for the past couple of days I've been researching some for work, but...
View ArticleMultiarch sadness with binary blobs and dependencies
I've exhausted both my knowledge of the Linux ecosystem and my google-fu. So let's start...at the start.The company I'm working at standardized on Ubuntu for alle Linux based servers. The entire pool...
View ArticleAmazon Web Services???
Hey guys, I've never used it before, but since the past year I've been seeing more and more people using it (I mean it was used before, but still). Anyway I know I can read through their wikis, but I...
View ArticleNeed to add 10,000+ DNS records.
I manage the DNS server for my own domains. Until now, the records have been your normal kind; sub domains, CNames, mail servers etc. Now I am offering a SaaS solution where people can point their own...
View ArticleBig shot companies should donate some servers
Am I the only who thinks that companies such as Facebook or Google, should have a lottery or something and give out servers to people who enter a "contest" every month or so, for some of their old...
View Article