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Answer: Checking if remote exists before calling send

by rasta (Hermit)
on Oct 10, 2002 at 07:24 UTC ( #204112=categorized answer: print w/replies, xml ) Need Help??

Q&A > network programming > Checking if remote exists before calling send - Answer contributed by rasta

I can advice you two solutions:

1. Use SO_KEEPALIVE socket option like in the following example:
use IO::Socket; my $sock = IO::Socket::INET->new('some_server'); $sock->read(1024,$data) until $sock->atmark;
2. You may use NetPacket::ICMP to check if remote host is alive.

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