Penetration Testing mailing list archives
Re: Connecting to different services with source port 53
From: Marco Ivaldi <raptor () 0xdeadbeef info>
Date: Mon, 4 Jul 2005 16:35:17 +0200 (CEST)
Hey,
Is there a way, how I can establish a connection using source port 53?
Actually, there are a lot of ways to accomplish this task: good old netcat and iptables SNAT on POSTROUTING are only a couple of examples... You can also take a look at proxed.c, a small TCP stream redirector/manipulator written by awgn: http://awgn.antifork.org/codes/proxed.c root@voodoo:~# ./proxed -h Usage: proxed [OPTION]... SOCKET -c int Set SO_RCVBUF size -f int Set SO_SNDBUF size -y int Set SO_RCVLOWAT size -z int Set SO_RCVLOWAT size -k Set SO_KEEPALIVE -r Set SO_DONTROUTE IP -A Set TTL ramping assault -T ttl Set IP_TTL -O tos Set IP_TOS TCP -x int Set TCP_MAXSEG. Maximum segment size < MTU -n Set TCP_NODELAY. Disable Nagle algorithm -6 Use IPv6 addresses -s [host|any][:.]port Source host and port to listen on -d host:port Destination host and port to connect to -b [host|any][:.]port Local host and port to bind Common -V Verbose; display verbose messages. -Q N. max of clients; default 10. -v Display version number. -h Print this help This network utility may also turn out to be (at least in part) useful to Mr. Rajeev Kapoor, who asked for something like that 2-3 weeks ago on this mailing list. Cheers, -- Marco Ivaldi Antifork Research, Inc. http://0xdeadbeef.info/ 3B05 C9C5 A2DE C3D7 4233 0394 EF85 2008 DBFD B707
Current thread:
- Re: Connecting to different services with source port 53 Marco Ivaldi (Jul 04)
- Re: Connecting to different services with source port 53 Christian Perst (Jul 07)
- <Possible follow-ups>
- Re: Connecting to different services with source port 53 Daniel Uriah Clemens (Jul 04)