Created
May 1, 2011 18:23
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Hard to reproduce sshuttle bug
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$ ./sshuttle --dns -r leto@example.com 0/0 -vv | |
Starting sshuttle proxy. | |
Binding: 12300 | |
Listening on ('127.0.0.1', 12300). | |
DNS listening on ('127.0.0.1', 12300). | |
[local sudo] Password: | |
Sorry, try again. | |
[local sudo] Password: | |
firewall manager ready. | |
c : connecting to server... | |
c : executing: ['ssh', 'leto@example.com', '--', 'P=python2; $P -V 2>/dev/null || P=python; "$P" -c \'import sys; skip_imports=1; verbosity=2; exec compile(sys.stdin.read(764), "assembler.py", "exec")\''] | |
c : > channel=0 cmd=PING len=7 (fullness=0) | |
server: assembling 'cmdline_options.py' (29 bytes) | |
server: assembling 'helpers.py' (693 bytes) | |
server: assembling 'ssubprocess.py' (13702 bytes) | |
server: assembling 'ssnet.py' (5100 bytes) | |
server: assembling 'hostwatch.py' (2242 bytes) | |
server: assembling 'server.py' (2380 bytes) | |
s: latency control setting = True | |
s: available routes: | |
s: 173.255.217.0/24 | |
s: > channel=0 cmd=PING len=7 (fullness=0) | |
s: > channel=0 cmd=ROUTES len=17 (fullness=7) | |
s: Waiting: 1 r=[4] w=[5] x=[] (fullness=24/0) | |
s: Ready: 1 r=[] w=[5] x=[] | |
s: mux wrote: 15/15 | |
s: mux wrote: 25/25 | |
s: Waiting: 1 r=[4] w=[] x=[] (fullness=24/0) | |
c : connected. | |
Connected. | |
c : Waiting: 3 r=[3, 5, 9] w=[9] x=[] (fullness=7/0) | |
c : Ready: 3 r=[9] w=[9] x=[] | |
c : < channel=0 cmd=PING len=7 | |
c : > channel=0 cmd=PONG len=7 (fullness=7) | |
c : < channel=0 cmd=ROUTES len=17 | |
firewall manager: starting transproxy. | |
>> iptables -t nat -N sshuttle-12300 | |
>> iptables -t nat -F sshuttle-12300 | |
>> iptables -t nat -I OUTPUT 1 -j sshuttle-12300 | |
>> iptables -t nat -I PREROUTING 1 -j sshuttle-12300 | |
>> iptables -t nat -A sshuttle-12300 -j RETURN --dest 127.0.0.0/8 -p tcp | |
>> iptables -t nat -A sshuttle-12300 -j REDIRECT --dest 0.0.0.0/0 -p tcp --to-ports 12300 -m ttl ! --ttl 42 | |
>> iptables -t nat -A sshuttle-12300 -j REDIRECT --dest XX.7.43.10/32 -p udp --dport 53 --to-ports 12300 -m ttl ! --ttl 42 | |
>> iptables -t nat -A sshuttle-12300 -j REDIRECT --dest XX.7.33.10/32 -p udp --dport 53 --to-ports 12300 -m ttl ! --ttl 42 | |
c : mux wrote: 15/15 | |
c : mux wrote: 15/15 | |
c : Waiting: 3 r=[3, 5, 9] w=[] x=[] (fullness=14/0) | |
Write failed: Broken pipe | |
c : Ready: 3 r=[9] w=[] x=[] | |
firewall manager: undoing changes. | |
>> iptables -t nat -D OUTPUT -j sshuttle-12300 | |
>> iptables -t nat -D PREROUTING -j sshuttle-12300 | |
>> iptables -t nat -F sshuttle-12300 | |
>> iptables -t nat -X sshuttle-12300 | |
c : fatal: server died with error code 255 |
--exclude XXX.XXX.XX.XXX
Yup, thanks! 👍
sshuttle <user>@<server-ip> --exclude <server-ip> ...
Thanks! 💯
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This totally makes sense, I was getting the error
broken pipe
andserver died with error code 255
, but of course, the connection to the server was lost as soon as the firewall started enforcing every connections, including the current ssh client.wow Thanks 👍