Author Topic: sysadmin jobs  (Read 1076 times)

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Offline richard_ablitt

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sysadmin jobs
« 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

Offline Mad Penguin

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Re: sysadmin jobs
« Reply #1 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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Offline richard_ablitt

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Re: sysadmin jobs
« Reply #2 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.

Offline Mad Penguin

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Re: sysadmin jobs
« Reply #3 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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Offline richard_ablitt

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Re: sysadmin jobs
« Reply #4 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

Offline Mark Greaves (PCNetSpec)

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Re: sysadmin jobs
« Reply #5 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 ) 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

WARNING: You are logged into reality as 'root'

logging in as 'insane' is the only safe option.

Offline richard_ablitt

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Re: sysadmin jobs
« Reply #6 on: February 09, 2013, 05:39:49 pm »
Nmap sees it as open, but it times out on 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.

Offline Mark Greaves (PCNetSpec)

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Re: sysadmin jobs
« Reply #7 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  ::)
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Offline Mad Penguin

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Re: sysadmin jobs
« Reply #8 on: February 09, 2013, 09:29:55 pm »
Mmm, not sure I'd call orange an ISP .. ;)

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