CentOs is the open source version of RHEL and it is ROCK SOLID. It should be the choice of server OS for a lot of people but because it’s open source, there is no “Customer support” as such so you need to know what you are doing. The CentOS Forum is a fantastic source of very helpful and knowledgeable people; who give their own time freely to help people with CentOS. The CentOS devs are awesome people that give their own time, without remuneration; to keeping CentOS open source. I think the “open source” community is amazing but doesn’t get the recognition it deserves.
Most of my Linux knowledge was gained by being part of a team that administered some 200 SCO UNIX boxes, which seems to have been in another life and I’ve forgotten a lot/most of it due to working mainly with MS Windows. I’ve dabbled with Linux over the years, Solaris, SUSE, Ubuntu and few others but I put my hands up and admit that I haven’t really kept up-to-date with the awesome Linux developments.
Enter SystemD and from CentOS 7, parallel processing on start up and probably more; if I got my head around it:-)
Even with an idiot like me “looking after” the CentOS box, using Webmin, Putty and WinSCP from my Windows boxes to do updates etc; the server hasn’t been rebooted for nearly a year. That is rock solid by any definition!
A few weeks ago, we had power outage; no problem UPS to the rescue – so I thought (turns out the battery was in need of replacement) and we had another power outage a short while later before the battery would have had time to recharge! I’m not sure if the server one or two ungraceful shutdowns but I was in “Emergency mode” on powering up.
See Bread maker kills Centos – almost to learn more:-