Who should be allowed to reboot a server?
Managing an number of RHEL servers (VMs) with Oracle running on it.Seems like in the past the DBAs had full root privileges, however I'm cracking down on that. White listing only the commands they need...
View ArticleHow do you stay informed about new CVEs and security updates?
For whatever reason I am having a hard time coming up with a reliable way to keep on top of newly discovered vulnerabilities. I initially had the idea of adding an RSS feed to my jira/confluence...
View Articlealternative to pac manager
Hi, i'm searching a manager for my connections to my VM's that supports ssh connections and rdp connections as well. now i'm using pac manager, but it's very buggy. Do you use another manager for your...
View Articlepiping stdout of jobs built-in command in dash vs. bash
So I'm doing some basic job control in a script and noticed that what I'm trying to do doesn't work in sh/dash (I'm on Ubuntu so sh is dash).bash$ jobs -p 3053 9202 $ jobs -p | wc -l 2 $ jobs -p | grep...
View ArticleManaging dotfiles accross several computers
Hi all,I have several computers (desktop, laptop, work laptop, and some servers) for which I have different dotfiles. Right now I use dotbot with several profiles to handle difference between those....
View ArticleMeasure twice, rm once
Don't be me.Cleaning up my NAS (while sitting on a concall half-listening), I torched a directory of VM images, since "all VMs are running out of the new directory".Turns out that they weren't. And I...
View ArticleInternet connection
I'm in a hotel trying to connect to the Wi-fi. My Linux mint 18.2 discovers the network and even connects to it. But it doesn't work. The strange thing is that I'm supposed to put a password in but the...
View ArticleOpenStack training
I'm closer than I've ever been to get a Linux admin position. The second interview is in about two weeks and will be more about tech this time (rather than me as a person). Primarily about OpenStack...
View ArticleReferred here from ITCareer Questions - IT Career NOOB!
Hey all,First question, I just passed my LPIC-1 Exam 1 about to take my LPIC-1 Exam 2 - should I take the RHCSA? (that was my original plan - but they cancelled my test, and now I am wondering how much...
View ArticleiSCSI session persistence
Hey everyone. I'm sure this is a very basic problem, but as a Linux noob, I can't quite figure it out. I have a CentOS box that is connected to our SAN, the iSCSI session is exposed as /dev/sdb. I went...
View ArticleI'm learning Python....but how do I use it?
So I'm dabbling in Python and I'm trying to wrap my head around how I could use this to automate certain tasks and make life easier.Does anyone have any resources or advice for learning and applying...
View ArticleEasy way to pass multiple arguments to BASH function?
I often have to access aws hosts using ssh via a jump host. I find it convenient to use ssh with ProxyCommand like this:Long formssh -i key_for_destination_host.pem -o "ProxyCommand ssh -W %h:%p -i...
View ArticleKeep running into issues on Centos 7
This shi* is pissing me off. For some reason my network connection keeps connecting and disconnecting. One second I can ping to google, the next second I can't. One second SSH is working, the next...
View Articlethe search for the perfect note taking tool
HI all, i've been looking around for a while now for the perfect note taking tool and figured I would ask the community.Given that I work in IT Operations with a decent (but not enough) amount of...
View ArticleStrangest dmcrypt issue...
On one machine, I can't open luks encrypted drives. So I tried formatting it with luksFormat, on the machine in question, and then creating a new luks partition. It works, but then I can't open it...
View ArticleHow to fix mail sending & spam on this server?
Im still relatively new and green to being a linux admin. I had to take over a few servers some months ago and they all have a number of problems and Ive been fixing what I can but Im still learning a...
View ArticleIf you wanted to generate random trash file content on a typical Debian...
e.g., generate say 1-100 lines' worth of random crap to create a new file or append to one? I'm talking going at crazy scale, possibly 500,000 actions a day for some tests.What's the fastest in just...
View ArticleSamba Winbind with fallback when a domain controller is down
Hi. We use samba winbind 4.2 and 4.6 with kerberos in in our linux environment (in a trusted domain setup) and have currently the problem that some user can not login and are not resolvable when one of...
View ArticleRedis/Sentinel & HAProxy for failover - Redis reports "Server closed the...
** Edit - not floating IP. Not sure why I wrote that. It's just the IP on the haproxy box for forwarding the connection.Hey guys,I'm having difficulty figuring out why my redis instances behind a...
View Articlepgbouncer and application password woes.
I am testing pgbouncer in my test environment and I am running into some security concerns. I was wondering anyone here solved my problem. My setup is that pgbouncer will reside on the appserver and it...
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