Consolidating disk with same serial to one disk instead of 2?
Never dealt with multipath before but take a look at the following: [root@zircon ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 279.5G 0 disk └─350000c0f01de6ca8 253:3 0 279.5G 0 mpath sdb...
View Articlepuppet dependent service error.
I am following this guide.my config.pp looks like the following: file {'/etc/ssh/sshd_config': mode=>'600', owner=>'root', group=>'root', source=>'puppet:///modules/sshd/sshd_config',...
View ArticleAdd existing Volumes to Bareos Catalog
Hello,Notes about my setup:All backups are done to hard drives mounted to the server. Every Friday these drives will be taken out for offsite storage. New drives will be mounted and I'd continue from...
View ArticleRun cronjob at random times
I've never had to create a random crontab of any kind, but for some reason I've googled the topic a few times. I always see people trying to solve the problem by generating some sort of random delay...
View ArticleInterview for Entry Level Admin
After making it through a preliminary interview, I have a phone interview coming up for a direct hire Linux SysAdmin position and could use some advice from the veterans out there. Even though this is...
View ArticleCan a Virtual Machine Crash The Host With Fork Bombs?
Say, you're hosting VM-s for yourself/your company, are buying VM-s from providers or just leasing VM-s to others, can a virtual machine bring down a Linux host with fork bombs?Example fork bombs I'm...
View ArticleTOTP and Public Key for SSH - Can you look this over to see if I missed...
If you use this and your server gets hacked, pwned, or turned into a zombie botnet, I am not responsible.All of the two factor guides for SSH that I could find use passwords and TOTP. I wanted to use...
View Articlemigrating ext3 filesystem to ext4 questions
So, we have some Linux servers that still run ext3 filesystems. I am hearing/reading that ext4 is going to give us a disk I/O increase. I am wondering if upgrading the file system is all that...
View ArticleI want to know what can I do,to increase my knowledge on linux.
Hi r/linuxadmin. I am a php programmer and have a lot of interest in linux. I tried applying for linux admin jobs, but someone here suggested me that I should stick to php programming as there is not...
View ArticleCross distro update monitoring
Hey /r/linuxadmin,I have a number of Linux servers spread across various networks running Ubuntu and CentOS. These are personal servers just used for various projects and tinkering. I'm pretty bad at...
View ArticleExt4 corruption on 4.4.0 mdraid, LVM
Have been seeing filesystem corruption on / or /var on my lightly loaded AMD system running two SSDs on mdraid and LVM. Just doing an apt upgrade could trigger the system to pop into read-only mode....
View ArticleSet Up SSH Key Authentication and Disable Password Login: Guide for New...
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View ArticleFixing file permissions with find?
I had to import a few websites. Unfortunately they were copied with wrong file permissions. I need them to follow 755/644, not 640.I tried running the following commands as root:find /home/*/domains/*/...
View ArticleDeadman's Switch for encryption.
I've a few systems that don't have always connected KVM/DRAC/iLO that I need to come back online after a reboot.But I want some way of if a certain user does not login for x days {or check a remote...
View ArticleCasual job offerings? - trying to avoid Win tech support
I've been working in a light DevOps / Sysadmin role for around two years now. Production runs CentOS / Ubuntu. I'm working for a small company <50 employees and most of the new work seems to revolve...
View ArticleHosting web-base IM that can join AD/DC
Which one to use? which one you think is the best and why? Requirement: Users must be able to securely login using their Windows AD/DC credentialsWeb-base and lightweight: chrome/firefox/ and other...
View ArticleHow to perform partitioning in text-mode install on CentOS 7?
I'm having trouble trying to install CentOS after partitioning the block device in another console. I'm using LVM logical volumes as block devices for the VM. I tried using the "Replace Existing Linux...
View ArticleWhy do I end up in -bash-4.2$?
I asked this question before, but the answers coming from that post has to do with permissions which wasn't what I wanted. I want to know in general why sometimes I end up in -bash-4.2$ when I ssh into...
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