Distributed file storage systems? [x-post /r/sysadmin]
We're a linux group, looking into Distributed file-storage systems. We've been using NFS for everything, and it's just not cutting it. NFS is not intended to have seamless failover, and it's starting...
View ArticleMy hosted server answers to requests it's not the target for
I am having a problem with a hosted server. It answers to requests to IP 4.9.81.102 but it's IP is 4.8.81.114This only happens when "real" 4.9.81.102 is offline. I guess it might happen when the "real"...
View ArticleI'm an admin-oriented PHP/Python dev, and I had some questions about...
I was curious about what exactly they mean when they say this:A good understanding of TCP/IP and its implementation and configuration in Linux.Experience with Linux kernel configuration, performance...
View ArticleGuides for using spacewalk to clone and redeploy Centos machines
Hi All,Apologies if this is the wrong place to ask, but I'm wondering if anyone can point me to a guide for using spacewalk to clone and then redeploy a system. I'm new to linux and I jumped in head...
View ArticleHow do I make a limited shell?
I want to make a limited shell similar to rssh so I an limit the commands that user is able to run.I want to make a vps backup user that is able to rsync, and run both a package database backup script...
View ArticleNeed assistance with openswan routing
Hi there, Trying to setup an IPSec tunnel between our office Meraki MX appliance and AWS. I have an EC2 instance running openswan already. EC2: 172.31.0.0/16 EC2 Public IP: 54...72Office:...
View ArticleFile Sync Server?
Are there any current server side services that have the ability to store/sync files based on user profile/id? We're looking for some type of drop in service or something we can easily send files to....
View ArticleTraining/testing/evaluation for linux fundamentals?
I'm looking to provide some beginner linux admins with some basic self-paced training to get them more familiar with the command line and linux in general. I was thinking about quest-type training...
View ArticleWill blocking all connections outside of the US aside from port 80 cause a...
Like most servers (I assume), we have people trying to brute force our services 24/7. I have cpHulk blacklist their IP's, but it seems like it'd be better if they didn't get that far in the first...
View ArticleOK, I assigned more space to my Logical Volume but...I am not sure what I...
Hello folks. I am trying to become familiar with LVM but I am a bit stuck right now :(Below is the output for the physical, volume and logical groups for LVM2. I am using EXT4 by the way.I wanted to...
View Articlersnapshot is putting backups of different directories/sub directories all...
I am on CentOS 6.6 and am using rsnapshot 1.3.1-12.So whenever I use rsnapshot to backup different directories such as /etc or /var it backs them up but in the folder specified to store the backups, it...
View ArticleFilesystem question
Hello /r/linuxadmin!This is my first post in this section, but I really appreciate all the feedback I've read on this subreddit for years. Basically my question stems from what you recommend to manage...
View ArticleWhat files to you save when you decommission an app-server/webserver?
Naturally the /etc and /var/log directories make sense, but are there any other files you pull off before scrubbing the drives? submitted by snobby_penguin [link][1 comment]
View ArticleIn LVS, is there a way to talk to the VIP from one of the realservers?
Here's the problem I'm having and so far I'm not even sure what to search Google for. For simplicity, let's start with this LVS-DR setup:For MySQL: VIP is 1.1.1.1, RS is 1.1.1.2 For HTTP: VIP is...
View ArticleCentos 5 non-standard OOM issue
Hi folks,I'm running a set of mail servers on centos5, with a 32-bit PAE kernel I'm stuck with due to vendor requirements. Whenever I bring the kernel version past 2.6.18-238, I start getting OOM...
View Articlefsck, e2fsck, debugfs, dumpe2fs, tune2fs
as admins, do you guys find yourself actually using these often? I'm evolving into a more admin roll at work and wondering if these are useful and important. submitted by jlew24asu [link][35 comments]
View ArticleLazyLinux. Sleep that respects SSH
The various sleep daemons drive me nuts. Most are linked to your window manager or screen saver, and none of them seem to really respect remote logins.I have a few machines that I log into and do...
View ArticleUsing ACLs to control access to system files
Preface: I am fairly new to linux in general, as I am a networking / windows admin, so please bear with me.I am currently attempting to set up a simple SFTP server using Ubuntu Server 14.04.2 LTS and...
View ArticleDo you turn off ipv6 or do you have ipv6 iptables6 rules?
Is it better to completely disable ipv6 or to have rules for ipv6 for iptables6? What do you prefer and why? Thanks. submitted by netscape101 [link][12 comments]
View ArticleWould anyone be interested in joining a linux admin/unix admin mentoring group?
It would just basically be me emailing you stuff to do and help answer any questions you have etc. Could give you career advice etc too. Just something I thought of doing. If you are interested let me...
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