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- Does the form come up?
- Can one execute traceroute from the command line?
- Can one execute traceroute -I from the command line , it needs sudo?
- Can one execute traceroiute -m 30 -q 3 from the command line (see below)?. The option m gives the maximum number of hops, the option q gives the number of probes/hop.
- Is the server For traceroute.pl on a local address, for example does traceroute.pl?target=www.cern.ch gives:
Code Block 10.60.112.55 is a private address See The Naming System for information on host.domain and Addresses for information on Internet addresses.
- Does the pingserver work (see below)?
- Is there anything interesting in the web server log?
- The best thing to try next is to test traceroute.pl from the command line
- In traceroute.pl try replacing exec($Tr, @Tr, $addr) with system($Tr, @Tr, $addr) == 0 or die "system($Tr, @Tr, $addr) failed: $?\n"; and test traceroute.pl from the command line as above.
Traceroute.pl stops after 4 hops
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