Nmap Development mailing list archives
Re: Strange errors with nmap 4.68
From: Ron <ron () skullsecurity net>
Date: Thu, 11 Dec 2008 14:39:00 -0600
Nathan wrote:
I think I've seen that error come up when I had a firewall running that denied me permission to send out a UDP packet. Is iptables running on the machine you're scanning from?From my server[1] that I'm running nmap[2] on I'm seeing lots of errormessages like the one below. Can someone help me understand what's going on? If this error is harmless, then I'll ignore it, but if not then I'd like to fix the problem on my server that's causing these errors. The task I'm trying to achieve is to periodically scan all the tcp ports on a bunch of servers to make sure new services don't get opened, and the amount of servers has increased lately, which may or may not be part of the cause of the error. I've tried googling the error, but that's just turned up a bunch of posts of nmap output that happen to contain the error, but the posts are discussing something else unrelated to the error. ---- sendto in send_ip_packet: sendto(6, packet, 44, 0, A.B.C.D, 16) => Operation not permitted Offending packet: TCP X.Y.Z.Z:57622 > A.B.C.D:36343 S ttl=38 id=64350 iplen=44 seq=3884235946 win=3072 <mss 1460> ---- [1] Linux myhostname 2.6.23-gentoo-r9 #2 SMP Wed Jul 9 14:34:31 MDT 2008 i686 Intel(R) Xeon(R) CPU X5355 @ 2.66GHz GenuineIntel GNU/Linux [2] /usr/bin/nmap -sS -sV -T4 -p 1-65535 -oG myoutputfile -oX - -P0 A.B.C.D ~ Nathan
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Current thread:
- Strange errors with nmap 4.68 Nathan (Dec 11)
- Re: Strange errors with nmap 4.68 Ron (Dec 11)
- Re: Strange errors with nmap 4.68 Nathan (Dec 11)
- Re: Strange errors with nmap 4.68 Nathan (Dec 11)
- Re: Strange errors with nmap 4.68 Brandon Enright (Dec 11)
- Re: Strange errors with nmap 4.68 Nathan (Dec 11)
- Re: Strange errors with nmap 4.68 Ron (Dec 11)
- Re: Strange errors with nmap 4.68 Brandon Enright (Dec 11)
- Message not available
- Re: Strange errors with nmap 4.68 Nathan (Dec 11)
- Re: Strange errors with nmap 4.68 Fyodor (Dec 11)
- Re: Strange errors with nmap 4.68 Nathan (Dec 11)
- Re: Strange errors with nmap 4.68 Ron (Dec 11)