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The Forums => Jobs Wanted => Topic started by: richard_ablitt on February 08, 2013, 03:12:28 pm

Title: sysadmin jobs
Post by: richard_ablitt on February 08, 2013, 03:12:28 pm
Does anyone have any advice about starting a career in system administration? I've been using Linux for about 10 years at home and have used most of the main distributions. I've got a web server set up on a Scientific Linux virtual machine using the ISPConfig hosting control panel, and I passed the RHCSA exam in December.

I've been doing agency work until now, and have had a range of office, factory and laboratory jobs.
Thanks
Richard
Title: Re: sysadmin jobs
Post by: Mad Penguin on February 08, 2013, 08:13:24 pm
Yup, learn IPV4 inside out, make sure you know all the standard office tools like postfix, samba, dhcpd, learn some bash, then have a play with either puppet or chef.

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Title: Re: sysadmin jobs
Post by: richard_ablitt on February 08, 2013, 10:12:31 pm
Thanks, I hadn't come across Puppet or Chef before so I'll set up some more VMs and try them out. I've run a mail server in the past, but unfortunately my ISP seems to be blocking port 25 now. I tend to use NFS and autofs on my network, but I'm comfortable with Samba as well.
Title: Re: sysadmin jobs
Post by: Mad Penguin on February 08, 2013, 11:19:20 pm
Personally I think Chef is pure evil, and I've not used Puppet, but they figure in 4 out of 5 job specs I see.

No ISP should block port 25 - I'd get a new ISP if I were you ... :)

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Title: Re: sysadmin jobs
Post by: richard_ablitt on February 09, 2013, 02:49:45 pm
It'll be a few months before the contract ends but I'll probably get a different one after that
Title: Re: sysadmin jobs
Post by: Mark Greaves (PCNetSpec) on February 09, 2013, 03:09:41 pm
Are you sure port 25 is being blocked ?

I just ran:
Quote
nmap -p 25 2.31.68.xxx


against your IP, and got:-

Quote
Starting Nmap 5.21 ( http://nmap.org ([url]http://http://nmap.org[/url]) ) at 2013-02-09 15:03 GMT
Nmap scan report for 2.31.68.xxx
Host is up (0.066s latency).
PORT   STATE    SERVICE
25/tcp filtered smtp

Title: Re: sysadmin jobs
Post by: richard_ablitt on February 09, 2013, 05:39:49 pm
Nmap sees it as open, but it times out on http://canyouseeme.org/ (http://canyouseeme.org/) . /var/log/maillog is also filled with timeout messages. Dovecot and Postfix are running, and I can log in and get a folder listing from other computers.
Title: Re: sysadmin jobs
Post by: Mark Greaves (PCNetSpec) on February 09, 2013, 06:11:07 pm
Hmm .. a quick "Google" suggests you're right .. Orange are indeed well known for blocking port 25  ::)
Title: Re: sysadmin jobs
Post by: Mad Penguin on February 09, 2013, 09:29:55 pm
Mmm, not sure I'd call orange an ISP .. ;)

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