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Top Forums UNIX for Dummies Questions & Answers How do you check whether a port currently being used? Post 302296623 by Autocross.US on Wednesday 11th of March 2009 01:05:07 PM
Old 03-11-2009
lsof -i :<portnumber>

example:

lsof -i :80
 

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IBCHECKERRS(8)							OpenIB Diagnostics						    IBCHECKERRS(8)

NAME
ibcheckerrs - validate IB port (or node) and report errors in counters above threshold SYNOPSIS
ibcheckerrs [-h] [-b] [-v] [-G] [-T <threshold_file>] [-s(how_thresholds)] [-N | -nocolor] [-C ca_name] [-P ca_port] [-t(imeout) time- out_ms] <lid|guid> <port> DESCRIPTION
Check specified port (or node) and report errors that surpassed their predefined threshold. Port address is lid unless -G option is used to specify a GUID address. The predefined thresholds can be dumped using the -s option, and a user defined threshold_file (using the same for- mat as the dump) can be specified using the -t <file> option. OPTIONS
-G use GUID address argument. In most cases, it is the Port GUID. Example: "0x08f1040023" -s show predefined thresholds -T use specified threshold file -v increase the verbosity level -b brief mode. Reduce the output to show only if errors are present, not what they are. -N | -nocolor use mono rather than color mode -C <ca_name> use the specified ca_name. -P <ca_port> use the specified ca_port. -t <timeout_ms> override the default timeout for the solicited mads. EXAMPLE
ibcheckerrs 2 # check aggregated node counter for lid 2 ibcheckerrs 2 4 # check port counters for lid 2 port 4 ibcheckerrs -T xxx 2 # check node using xxx threshold file SEE ALSO
perfquery(8), ibaddr(8) AUTHOR
Hal Rosenstock <halr@voltaire.com> OpenIB May 30, 2007 IBCHECKERRS(8)
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