test_reachability |
When you enable this directive, Squid looks at its netdb database while processing ICP queries. If Squid normally returns ICP_MISS, but the origin server isn't in the database or doesn't respond to ICMP pings, it returns ICP_MISS_NOFETCH instead. The ICP_MISS_NOFETCH reply signals the neighbor cache that Squid might not be able to communicate with the origin server.
Syntax |
test_reachability on|off |
Default |
test_reachability off |
Example |
test_reachability on |
Related |
pinger_program, query_icmp, netdb_ping_period |