1TELNET-PROBE(1) General Commands Manual TELNET-PROBE(1)
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6 telnet-probe - lightweight telnet-like port probe
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9 $PCP_BINADM_DIR/telnet-probe [-v] host port
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12 telnet-probe allows the pmdashping(1) daemons to establish connections
13 to arbitrary local and remote service-providing daemons so that
14 response time and service availability information can be obtained.
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16 The required host and port number arguments have the same meaning as
17 their telnet(1) equivalents.
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19 The -v option causes telnet-probe to be verbose while operating.
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21 Once the telnet connection has been established, telnet-probe reads
22 from stdin until end-of-file, and writes all the input data to the tel‐
23 net connection. Next, telnet-probe will read from the telnet connec‐
24 tion until end-of-file, discarding whatever data it receives. Then
25 telnet-probe exits.
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27 To operate successfully, the input passed via telnet-probe to the
28 remote service must be sufficient to cause the remote service to close
29 the connection when the last line of input has been processed, e.g.
30 ending with ``quit'' when probing SMTP on port 25.
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32 By default telnet-probe will not produce any output, unless there is an
33 error in which case a diagnostic message can be displayed (in verbose
34 mode only) and the exit status will be non-zero indicating a failure.
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37 Environment variables with the prefix PCP_ are used to parameterize the
38 file and directory names used by PCP. On each installation, the file
39 /etc/pcp.conf contains the local values for these variables. The
40 $PCP_CONF variable may be used to specify an alternative configuration
41 file, as described in pcp.conf(4).
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44 If telnet-probe succeeds, then 0 will be returned. If the attempt to
45 establish a connection fails or is terminated, then a non-zero exit
46 status is returned.
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49 PCPintro(1), pmdashping(1), pmie(1) and telnet(1).
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53Performance Co-Pilot SGI TELNET-PROBE(1)