Citrix ICA q1: does check_tcp -H metaframe -p 1494 -e 'ICA' work for anyone ?

[Stanley Hopcroft]

Dear Folks,

Is anyone using check_tcp, with an expect string, for a rudimentary 
check of Citrix ICA/Metaframe servers ?

tsitc> ./check_tcp -H 10.1.2.224 -p 1494 -e 'ICA' -t 2
Socket timeout after 2 seconds

tsitc> ./check_tcp -h
check_tcp (nagios-plugins 1.3.1) 1.13.2.3
The nagios plugins come with ABSOLUTELY NO WARRANTY. You may 
redistribute
copies of the plugins under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.
Copyright (c) 1999 Ethan Galstad (nagios at nagios.org)

This plugin tests TCP connections with the specified host.

Usage: check_tcp -H host -p port [-w warn_time] [-c crit_time] [-s 
send_string]
         [-e expect_string] [-q quit_string] [-m maxbytes] [-d delay]
         [-t to_sec] [-v]

(but also the alpha release of 1.4 plugins)

Here seems to be the relevant part of the trace

0.006532 10.1.2.252 -> 10.1.2.224 TCP 4606 > ica [SYN] Seq=0 Ack=0 
Win=57344 Len=0 MSS=1460 WS=0 TSV=588114048 TSER=0
0.006669 10.1.2.224 -> 10.1.2.252 TCP ica > 4606 [SYN, ACK] Seq=0 Ack=1 
Win=64512 Len=0 MSS=1460 WS=0 TSV=0 TSER=0
0.006701 10.1.2.252 -> 10.1.2.224 TCP 4606 > ica [ACK] Seq=1 Ack=1 
Win=57920 Len=0 TSV=588114048 TSER=0
0.008198 10.1.2.224 -> 10.1.2.252 TCP ica > 4606 [PSH, ACK] Seq=1 Ack=1 
Win=64512 Len=6 TSV=58844105 TSER=588114048

The last packet has the 'ICA' string in ASCII among the 6 bytes sent by 
the server (10.1.2.224).

            0   1  2  3  4  5
0040  bc 81 7f 7f 49 43 41 00                           ....ICA.

Yours sincerely.


-- 
Stanley Hopcroft

Network specialist, IT Infrastructure
IP Australia
Ph: (02) 6283 3189  Fax: (02) 6281 1353
PO Box 200 Woden  ACT 2606
http://www.ipaustralia.gov.au
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