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I have CentOS servers 5.5 and I see that the Xinetd is not install on any of them. Do you think it will be wise to install xinetd or not? These are production systems.

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Xinetd is a service that manage internet connection type. It's a version more securised than inetd.

Xinetd is often used for monitoring (nagios, cacti, zabix, etc...)

Like ewwhite said, the install of xinted depend of what you do with your server. I did installed it on my servers, but on those where i don't need it 24/24, 7/7 I just stop it, and on the other (that are critical and need to be monitored), the service run 24/24 7/7!

hope that'll help you.

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This depends on if you need to run any xinetd services, like telnet.

  • You should never need to run telnet. – symcbean Jun 9 '11 at 12:45
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    I'll bite... Some warehousing and industrial ERP applications that use hardware terminals or serial terminal servers leverage telnet. I also see a lot of legacy systems (converted from SCO) that require telnet and don't support SSH. – ewwhite Jun 9 '11 at 12:47
  • Nonsense - the only relevance telnet has over ssh is on very high security legacy systems where an ssh server cannot be deployed (and IME, these are generally considered an oxymoron by the people who run such systems - i.e. the military). There are legacy systems out there which are hard-coded to run on old terminal hardware (up until recently I looked after a system which would only talk to Data General 400 terminal - last manufactured about 30 years ago) but it's trivial to connect a telnet emulator to an SSH connection on the client. – symcbean Jun 10 '11 at 12:27

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