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Old 3 Weeks Ago
dck133 dck133 is offline
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discovering which ports are in use
I am trying to find a way to discover which ports are in use on a UNIX system. I cannot install lsof on it, and it looks like the telnet option is disabled.
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Old 3 Weeks Ago
mkastin mkastin is offline
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Try this

Code:
$netstat -pnae
the -p option will only properly display the prom using the port if you are root.
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Old 3 Weeks Ago
thegeek thegeek is offline
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all open ports...

Code:
netstat -tulpn
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Old 3 Weeks Ago
dck133 dck133 is offline
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doesn't seem to like them
I get these error messages:

EZZ2381I Incorrect option argument ulpn


EZZ2377I Could not establish affinity with NAE (138/11B3005A) - can not provide the requested o
ption information


I am not the sys admin.

What I am trying to do is find an open port for my program to use - if I do

netstat -o

would the list I get be comprehensive enough or could I assign my program a port someone else is using?
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Old 3 Weeks Ago
methyl methyl is offline
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Please state the exact version if unix and the flavour of shell. What programming language are you using?
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Old 3 Weeks Ago
jlliagre jlliagre is offline Forum Advisor  
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Looks like it's z/OS, not exactly what I would even remotely call a version of Unix ...
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Old 3 Weeks Ago
dck133 dck133 is offline
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I didn't realize the z/OS version of UNIX was so different from other versions. I can run most shell cmds and have written shell scripts using KORN shell cmds. Should I find a forum specializing in z/OS shell?
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