Fresh 7 Error USB Hub Error
I did a fresh CentOS 7.1 minimal installation on my Intel PC which I plan to use for a server. The minimal installation went perfect but when I rebooted the server, I saw a USB hub error in yellow...
View ArticleCentOS 7 disabling DST - Daylights Savings Time
I need some correction in my understanding of my setup. There are a few servers that cannot be have Daylights Savings Time enabled. I'm creating a new ntp server on centos7 dedicated to these servers...
View ArticleAdvice on Intel-SA-00088
I'm working with my personal computer running Debian buster right now. I've got a path forward for work machines. The recommendation for remediating the Spectre and Meltdown vulnerabilities (just...
View ArticleCifs mount randomly failing with "input/output error"
Hi all,I have a cifs mount that uses the following options://someserver/product /mnt/product cifs multiuser,sec=krb5,noperm,user=myuser,file_mode=0600,dir_mode=0700,vers=3.0Mounting this works. However...
View ArticleLPIC-3 304 study materials?
Greetings fellow admins, if this is the wrong sub I do apologize, if it is please direct me to the correct sub! My question is do anyone of you out there know where to find worthwhile resources for...
View Articleweird yum question
So I've got a pair of servers here baffling me. I'm likely to crack open a case with RH tomorrow, but I figured I'd post here in case anyone has a solution that I hadn't thought of. So yum update is...
View ArticleSecuring a Samsung 850 EVO SSD for surplus
I've got an old 500GB Samsung 850 EVO SSD that I'd like to surplus. I've seen a lot of conflicting information about securing used SSDs for sale, and I have what is probably a dumb question. The...
View ArticleServer is stuck in a pxeboot loop. Finds kernel initrd and vmlinuz then reboots
Hiya!We are trying to upgrade our CentOS 6.9 server (Dell PowerEdge C6145) with bigger SSDs and are trying to do a fresh install over pxeboot. This client looks to an other server that hosts...
View ArticleLooking for a good book on Linux system administration
I am doing the course "Essentials of Linux System Administration (LFS201)" on Linux.com. I like the course, but what I need is a good book next to it. Does anyone know a good book on the subject of...
View Articleunable to assign unix permissions to mounted drive.
My job just started using a Netapp as a file storage system and for some reason I am unable to assign group permissions (chmod/ chgrp) on the folders. I have the folders auto mounted so I can reach...
View ArticleJust had the "Open Source is for playing with, not for business" conversation...
What is this, 1997?This comes about as I'm deploying Moodle for some online training we are doing. Yes, Postgres, Linux, and MySQL -- who really uses that stuff? And yes, Moodle may not match 100% of...
View ArticleClustering , high availability , load balancing ? How do to these
Hey, I'm it guy with decent linux knowledge as user, and im looking to expand my knowledge. so my company has 10 abandon servers with decent spec , and im looking to learn how to do "Clustering , high...
View Article[Jenkins] how does a job got triggered?
I got jenkins setup. I have a test job call test. All it does it echo foo. For simplicity, there's no trigger, only manually hitting build now via the gui. Can anyone explain to me how the job works?...
View ArticleWhat do you use to capture, organize your important things and tricks?
I wanted to ask you how you organize your notes and tricks. I mean things typically computer, some syntax, commands, maybe scripts. For some time I have been looking for some to add to my server and...
View ArticleQuestion for the group around LFCS
My boss has agreed to pay for LFCS. I have probably what I would consider intermediate linux knowledge currently. What I'm trying to decide is if I should book the test and focus on CentOS or Ubuntu? I...
View ArticleBetter career move; learning Openshift or bare bones kubernetes?
I'm currently at a crossroad and need everyone's advice.I want to move into the container development, management, and orchestration world out of interest and curiosity but I don't know which path to...
View ArticleCan anyone name a good tutorial/starting point for looking into MariaDB...
Hi, I'm looking for a tutorial, or any starting point to look into replicating/clustering MariaDB/MySQL servers. I'm starting an apprenticeship in IT in summer and wanted to have a look into that topic...
View ArticleGalera, Centos 7.4 x86_64 questions (setup is working)
Hi there.Just fiddling around getting galera working on two servers. It's now running fine, albeit with selinux disabled. Will fiddle with that.Meantime, I have a question. to get the master node...
View ArticleNeed help fixing a permissions issue
So i did a terrible thing. I was trying to set permissions and not knowing what i was doing i did: chmod -R 777 /*This did something weird to the system and now i cannot login as root or even use sudo....
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