Configuration Management Tutorials
I would like to get myself familiarized with some configuration management applications (puppet, chef, salt etc.) just to know what these tools are capable of. I don't really have an application to...
View ArticleRound Robin DNS Failover with Puppet (or other failover methods)
I am considering setting up a dual Puppet Master with Round Robin DNS failover and I am curious is this setup possible without having a third server acting as CA. Can each master be its own CA and...
View ArticleXpost /r/selinux Selinux Debian and Xorg
Hi I'm having an issue with selinix in permissive mode.Xorg.0.log has/etc/selinux/default/contexts/x_contexts: has invalid context system_u:object_r:seclabel_xproperty_t:s0I looked through the default...
View ArticleMySQL performance tuning (for sysadmins) Need help
So, I'll be honest, this is a weak area for me.Whenever I've been tasked with mysql performance tuning, I end up reading the mysql documentation a lot. And I usually end up setting values that will...
View ArticleUsing Exchange in Linux
Because our new CEO is incapable of using or adapting to Google Apps mail/calendar he has hired a Windows admin in to take us from GApps to hosted Exchange (this was done under the guise of bringing...
View ArticleTrying to use rsync on mirror.centos.org but I am receiving a "failed to...
Hello all:I created the directory tree of where I want to store my rpms mkdir -pv /depo/centos/6/os/x86_64*Then I run rsync -avz rsync://mirror.centos.org/centos/6/ /depo/centos/6/I end up with the...
View ArticleVery Slow SSH on Home Network
I'm having issues SSHing to my Ubuntu server when connecting from home. But when I connect from say my phone via 4G it's super fast. The delay is so bad the connection often times out and it's...
View ArticleWeird iSCSI/NFS stability issue
Hi, I've got a Synology Rackstation with 30TB total disk. I have 3 iSCSI targets defined: one 3 terabytes, one 7 terabytes and one 15 terabytes. The 3 & 15 terabyte ones are mounted to one Linux...
View ArticleA good way to stress test hardware and have it report back to a web UI?
We have quite a bit of dell servers that are running out of support so I want to do a stress test to see if any hardware needs replacing. Is there something I can use to do like a burn-in test and have...
View ArticleShare your "~" directory backup plan
Hey guys I am currently on arch linux. Was wondering what ideas you guys have to backup your user home directory. I have it copied on an external but wondering if you guys use a cron or rsync or any...
View ArticleAt what point do you say "I know Linux"?
Hi everyone. I'm new here.I've been in a sysadmin job for 2 years. Our place is mostly a Windows shop, but I push Linux at every possible opportunity. The guys know me locally as the king of...
View ArticleNeed a distro that does something very specific..
Hello,For a project im looking for a very small linux distro that runs a LAMP server and starts in a browser only. No option to close the browser. Is there something that comes close to or matches...
View ArticleCollege Student Seeking Assistance/Direction with Linux Project. [xpost from...
Greetings /r/ Today in my Linux Essentials Class, we have opted to simulate starting a NEW Internet service provider company, its a semester long project that we are wanting to learn about Linux and...
View ArticleWhat's the current best practices to give root access to a secondary user on...
I've got a scenario where I need to let another user -- from automation -- log into the Debian machine periodically and execute commands. I don't want to use the main root user, for security reasons,...
View ArticleNetwork File System for a Hostile Environment?
I am helping some journalists set up a secure NAS/network storage system but haven't found a way to put together what they need. Here are their needs:encrypted file storagebe able to access their files...
View ArticleManaging VMs for application deployment.
Hey linuxadmin, I have a question about KVM / QEMU and how you would manage those VMs.We currently have a single server deployed with some PHP applications. These are deployed with Capistrano.We have...
View ArticleQuestion about Red Hat's of Expertise in Clustering and Storage Management...
My RHCE certification(in Redhat 6) is expiring in few months. I think writing any of the exams for RHCA is better than re-certifying for RHCE. There was post discussing it here few days back.Red Hat...
View ArticleMounting iSCSI Volumes with Red Hat 6.4
Hi thereDoes anyone have any experience working and managing iSCSI volumes with Red Hat? I'm new to Red Hat and want to learn more about how to make this available on Red Hat hosts.EDIT: Just want to...
View ArticleRHCSA achieved, thanks r/linuxadmin!
Hi all Yesterday I took the RHCSA and despite not feeling amazing when I walked out of there, I passed with 283. I wanted to say thank you to everyone here who took the time to answer all of the...
View ArticleNagios Alternatives
I'm looking at monitoring solutions as we ramp up our datacenter. This is new territory for me and I don't know a lot about what's out there, but Nagios seems to be one of the standard solutions to the...
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