> Over the last 6 months or so, I have seen NMAP performance tank heavily on > a number of Linux systems I administer. It is a particular problem with > full NMAP scans such as 'nmap -sT -p 1-65535 target.txt'. Whereas in the > past, these would complete in a reasonable amount of time (less than an > hour maybe, sometimes a bit more) I am now seeing them take days, > sometimes not even completing at all. It is especially problematic on > Internet hosts, and doesn't seem to rear its head much on the LAN side > scans. I have set up a number of scans, and have seen results range from > very slow, to the process dumping mysteriously (no messages to indicate > why), to "RESOURCE UNAVAILABLE" messages being generated when using > 'strace' to monitor the process.
Is it possible you have any of THESE amongst the addresses you are scanning? http://www.hackbusters.net/LaBrea/ Just curious... Richard Koett. -- Cybernet Security Phone : 604-999-0207 Fax : 604-648-8597 http://cybernet-security.com - [EMAIL PROTECTED]: general discussions about Nessus. * To unsubscribe, send a mail to [EMAIL PROTECTED] with "unsubscribe nessus" in the body.
