SNMP Setup for Red Hat
I've tried to find a good guide on how to set up SNMP on Red Hat 6.6, but I seem to be unable to. Does anyone have a good way that I could set up read only monitoring for Red Hat using SNMP v2? I would...
View ArticlePlaintext authentication w/ SSL/TLS VS nonplaintext authentication with...
What would you recommend for mail logins with postfix/dovecot setup. Plain text authentication sent in an SSL/TLS connection or nonplaintext using DIGEST-MD5? One user at stackexchange says MD5 isnt...
View ArticleHow to generate certificates for TLS in use in postfix/dovecot?
In the past, I used the command genkey --days 365 mail.example.com as seen here http://wiki.centos.org/HowTos/postfix_sasl#head-cbb533b46d6bb25ca84e0a62c9c653eb5788c4ed to generate the TLS...
View Articleprocesses are stopping on their own sometimes.
I have a centos 6.6 VPS where I'm running a really lightweight website from. I've had it for just under two weeks and I have already seen httpd stop on its own twice and mysqld stop once. sshd, crond,...
View ArticleStudy Material for the RHCSA 7
Hi guys,I was trying to find actual practice exams with or without virtual machines.I did take the certdepot exam but it really doesnt prepare you for the RHCSA as well as you would hope. (I already...
View ArticleWhy do people install EPEL this way?
Every guide online always tells you to use wget to download the RPM for the EPEL repos, and the use the 'rpm' command to install them.Why do people not just do 'yum install epel-release' ?it maketh no...
View ArticleServer Advice (x-post /r/asknetsec)
Needing some advice on a Linux server. We had a dumb user plug a powered off dumb phone (old Samsung flip phone) straight into the front of an Ubuntu server to charge it.This server was setup several...
View ArticleResizing LUKS FS partition
Hey guys,Was hoping someone could give me some guidance on how to resize my root partition in my LUKS FS. I'm pretty new to LUKS and when I installed debian on my new workstation.. I forgot to check...
View ArticleLinux admin, but without on-call?
I've been doing Linux admin work for a couple years, and my resume is good enough that I get calls back when I apply for jobs. But for whatever reason, I'm not interested in doing on-call rotations. I...
View ArticleBash Completion: How to Turn On?
Ubuntu Server 14.04 [64-bit]. Created 2nd User Account. Gave it permission to run [sudo apt-get update] in the Bash Terminal. However, there is no Bash Completion on this user account. Do I have to...
View ArticleAnyone give me a "day in the life of" ?
Im curious, what is the average day in the life for a linux admin?Im not looking to change right now, but I would love to keep my options open. submitted by Maleus21 [link][37 comments]
View ArticleCobbler/PXE for multiple remote subnets
I've been trying to think through how this would work. Each remote subnet has a local DHCP server. Seems like the way to go would be to setup DHCP relays and/or VLANs for PXE. I've also entertained the...
View ArticleReplace AD/Windows SBS with linux and samba4
I am looking into replacing an AD environment currently running on a windows SBS server with linux and samba4 instead. The exchange server has been migrated to office365 already so the only thing we...
View ArticleIs rsync the wrong answer to what I'm trying to accomplish?
My end goal is that I want to back up my phone's pictures to my NAS server, sorted by date (/yyyy/mm/dd/). I'm planning to use rsync backup for Android to copy the pics to the server every night into...
View ArticleHow do you handle apt-get upgrade on your servers?
I usually like the idea of doing regular apt-get update && apt-get upgrade. But got into a discussion with one of my co-workers and he said its better for stability to only install critical...
View ArticlePound HTTPS frontend to HTTP backend?
Any Pound users out there?I'd like to use Pound to answer requests on HTTPS, but forward through to a simple HTTP backend on port 80. It's been a while since I looked, but last time I checked I wasn't...
View ArticleHow can I get a stable desktop install running Grsecurity Patch?
I've tried running it a few times but had issues with Thunderbird crashing the whole time. Thanks for your answers. submitted by netscape101 [link][comment]
View ArticleProblems with SSSD / AD
I'm trying to set up SSSD on a CentOS 7 box to authenticate local AD logins. It's my first time doing this, but I've done quite a bit of trial and error and have limited success: Logins work if your...
View ArticleCan python actually replace bash ?
I've read this before - I'm not too sure how serious people are when they say it or whether they're just implying that Python is a nice language for system tasks (and for most perhaps nicer to work in...
View Articleiscsi target, corosync, drbd, multipath... questions
Two main questions actually... So I have two iscsitargets on two entirely different hosts. I'm trying to connect the initiator to both ,when logging into the second target from the initiator, the...
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