There's a couple of places (naturally). It's easy to be fooled and think: "anybody can type man man". But in all fairness, you need to figure out which man page to look into, or what command to run and sometimes it's just a blank. In RHEL there is /usr/share …

I just received the EXAM results. This was on Sunday at around 1500 Finnish time. About three days after I took the exam, these guys must be working on the weekend to check the results! Result: 300/300!

Wow, there's lots of it in there. Some of it is about networking and a lot about individual services. I haven't actually planned to go get the exam soon, but I think just going through these objectives will make me better at Linux. Anyway, if I pass the RHCE, that …

Just did the exam. Not bad at all, I really enjoyed this hands-on exam. Great way to test someone's skills, although I thought it would be harder. But maybe I got lucky with the tasks. I believe this RHCSA Rapid Track (along with My Own Preparation (tm)) and learning how …

Last day! A little more kickstarting, LVM - logical volume management and File ACL. Then a rehearse of the previous chapters. Feeling a bit excited about tomorrow! These ACL were a bit more complex than I thought, but they could be made very complicated if you want to. But there's the …

Wow, what a day! Some great stuff today It ended with configuring a kickstart file, starting an unattended installation via PXE by referring to said kickstart file on an http-server. Before that we were playing with partitioning, making swap, encrypting with cryptsetup and LUKS. Also very interesting. After we learned …

I wrote in the preparation that there were no 'set up ftp/www service'. What do you think we did today in the course? Set up vsftpd and httpd :) Ssh hardening, set up vnc server, configure firewall via gui, ntp setup. Stuff like that. It's getting closer! I believe tomorrow …

First day done! What hit me was that there are many commands in linux, some you maybe only use for one purpose. But there are some things that you haven't done with it before, so an old command can still cause some trouble. For example crontab and the last * (or …

[toc] https://github.com/mconigliaro/RHCE-Cheat-Sheet Found this "cheat sheet" for RHCE. Sure it doesn't specifically say RHCSA but honestly there's a lot of good commands in there. Some things obviously might be too advanced for RHCSA, such configuring an dns/named service. But it might be good as a …

Not allowing root to log in By default sshd is running on SL6 and you can ssh in with 'root'. Probably a good idea to change this in /etc/ssh/sshd_config permitrootlogin no But first, create a user that can log in. useradd mart passwd mart Then you can change …