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Old 02-04-2012, 04:51 PM   #1
seabrook
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Registered: Aug 2004
Location: Maryland, USA
Distribution: CentOS
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Remote system admin course


We have an introduction to GNU/Linux and a second course that introduces System Administration. For our third course I have suggested remote system administration including the following topics:

Webmin -- centralized admin on a particular machine
-- install, start, stop services
Nagios -- server farm managment -- monitoring, alerts
-- local lab or rack of machines
Zenoss -- same as above
cell-phone/tablet -- Nagios app, monitoring, alerts
cloud -- set up server farm in the cloud
-- AWS + SCALR
vnc -- remote desktop operations
security -- intrusion detection and prevention
-- Snort, Wireshark
Features:
centralized desktop, operations center
solo remote monitoring with tablets and cell phones
both video and low/no video monitoring
protocols: tcp/ip, rpc, snmp

The course would be 15-weeks, 4-credits taught in a lab of 20 pcs and other useful equipment.
Does this make sense? Can you suggest other tools to add to or replace some of the above? I'd appreciate thoughts on the matter based on your experience.
Dick S.
Anne Arundel Community College
 
Old 02-05-2012, 02:52 AM   #2
cbtshare
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it all depends on what capacity the individual taking the course is fill and if the job they are going to do will comprise of these functions.
 
Old 02-05-2012, 06:16 PM   #3
chrism01
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Registered: Aug 2004
Location: Sydney
Distribution: Centos 6.9, Centos 7.3
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For remote systems, on the client end, consider

Putty, Filezilla (in both cases emphasis port 22, so your guys need to understand SSH+cfgs in detail inc passwd vs auth-keys)
Also learn ssh/scp/sftp from cli

At the server end, consider Cacti for graphing, as Nagios is really only good for alerts, graphing is very basic. FWIW, there is a plugin NPC (Nagios Plugin for Cacti) which means you can access nagios page from within Cacti.

If you haven't already, do IPTables in depth.
 
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Old 02-05-2012, 07:23 PM   #4
seabrook
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Thanks! We cover ssh, sftp and an intro to iptables in the prerequisite
but Cacti and NPC are new to me. Great!
Dick S.
 
Old 02-06-2012, 09:30 PM   #5
chrism01
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For filtering incoming cxns look at tcp-wrappers (/etc/hosts.allow, hosts.deny). Also fail2ban for auto banning too many incoming cxn attempts.
Can be done with iptables, but its fiddly.
 
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Old 02-06-2012, 10:17 PM   #6
seabrook
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Thanks! We're using fail2ban but I hadn't thought to include it. tcp-wrappers too.
Dick S.
 
  


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