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First try running under python2, then python if that doesn't exist.
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Looks like it worked before, but personal preference is a killer.
The new name is "--no-latency-control".
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On high latency links, the PING/PONG round trip triggered by fullness
checking could kill the bandwidth. Disabling it could result in >10x
bandwidth increase in some setups where the existing latency is already high
and the available bandwidth is also high.
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Rename --background to -D/--daemon, to match other programs (like smbd).
You can now have --syslog even without --daemon.
Avoid using atexit(); try/finally is better.
Don't just close stderr; we'll end up eating error output from ssh!
Instead, redirect stderr to a 'logger' subprocess that will send to syslog.
Delay redirecting stderr until after we know we're daemonizing, so handy
error messages can go to stderr instead of syslog.
Make pidfile stuff more resilient: support already-existing files, files
with strict permissions, outdated files containing an already-dead pid. Add
a --pidfile option to let you specify the pidfile path.
chdir("/") while daemonizing, so that the filesystem containing $PWD can
later be unmounted without killing the daemon.
fw.done() can't wait on the firewall subprocess on exit when daemonized; we
no longer are the parent of that process.
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Supported sshuttle commands for IPv6:
./sshuttle -r "IPv6:addr" 0.0.0.0/0 -vv
./sshuttle -r "[IPv6:addr]" 0.0.0.0/0 -vv
./sshuttle -r "[IPv6:addr]:22" 0.0.0.0/0 -vv
Technically "invalid" address/port formats, but they can still be parsed because they’re unambiguous, so these also work:
./sshuttle -r "IPv6:addr]" 0.0.0.0/0 -vv
./sshuttle -r "IPv6:addr]:" 0.0.0.0/0 -vv
./sshuttle -r "IPv6:addr]:22" 0.0.0.0/0 -vv
./sshuttle -r "[IPv6:addr" 0.0.0.0/0 -vv
(If you have a Mac with Back To My Mac, use dns-sd to discover the remote host's IPv6 address:
dns-sd -G v4v6 <machine name>.<member name>.members.mac.com )
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Requested by Axel Beckert.
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This should hopefully let us run even on python 2.3 on really old servers.
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This prevents ssh from asking for a password successfully. Error reported
by Chetan Kunte.
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Search the entire python sys.path, not just the directory that argv[0] is
in. That way if you symlink the sshuttle binary into (for example) ~/bin,
it'll be able to work correctly.
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Now if you use --auto-hosts (-H), the client will ask the server to spawn a
hostwatcher to add names. That, in turn, will send names back to the
server, which sends them back to the client, which sends them to the
firewall subprocess, which will write them to /etc/hosts. Whew!
Only the firewall process can write to /etc/hosts, of course, because only
he's running as root.
Since the name discovery process is kind of slow, we cache the names in
~/.sshuttle.hosts on the remote server.
Right now, most of the names are discovered using nmblookup and smbclient,
as well as by reading the existing entries in /etc/hosts. What would really
be nice would be to query active directory or mdns somehow... but I don't
really know how those work, so this is what you get for now :) It's pretty
neat, at least.
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Instead, grab our source code, send it over the link, and have python eval
it and then start the server.py main() function.
Strangely, there's now *less* horrible stuff in ssh.py, because we no longer
have to munge around with the PATH environment variable. And this
significantly reduces the setup required to get sshuttle going.
Based on a suggestion from Wayne Scott.
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Feature requested by Wayne Scott and Ed Maste.
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If you ran sshuttle from /home/apenwarr/sshuttle/sshuttle, we would
automatically add /home/apenwarr/sshuttle to the PATH before trying to
execute sshuttle on the remote machine. That way, if you install it in the
same place on two computers, the client would still be able to start the
server.
Someone reported, though, that if they installed the client in
/home/apenwarr/sshuttle/shuttle, and the server in /root/sshuttle/sshuttle,
then used "-r root@servername", it wasn't able to find the program.
Similar problems would happen if you're apenwarr at home and averyp at work.
So what we now do is add *two* directories to the PATH:
/home/apenwarr/sshuttle and $HOME/sshuttle, where $HOME is the value of
$HOME on the *server*, not the client. So it'll find it in either place.
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Now the sudo iptables subprocess persists for the entire life of sshuttle.
The benefits of this are:
- no need to authenticate again at shutdown (failure of which could cause us
to not clean up iptables)
- if the main process dies unexpectedly, iptables still gets cleaned up
- the password prompt can happen *before* starting the ssh/server process,
which means it'll stand out and the password prompt won't be overwritten.
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We'll introduce a new "Fatal" exception for this purpose, and throw it when
we just want to print a user message and abort immediately.
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Some fds don't have peernames, and sometimes the peername isn't very
helpful, so let's fill it in by hand when appropriate.
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Currently the 'server' is just a pipe to run 'hd' (hexdump) for looking at
the client-side results. Lame, but true.
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Importing options.py, ssh.py, and LICENSE from the bup project.
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