Ricardo Amorim wrote:
I compiled ruby-1.8.7-p249 with --enable-socks and package libsocks4
installed in Debian lenny.
Well, i’m trying to get SOCKS working with Net::FTP. I started “ssh -N
-D 8000 [email protected]” and configured SOCKS_SERVER=127.0.0.1:8000.
When i connect to a FTP server in irb, i can see the SOCKSSocket being
initialized (@sock=#SOCKSSocket:0x0000000248aca0) but looking at ssh
debug, it’s not using actually using SOCKS.
Am i doing something wrong or it is not working?
I can’t answer your question directly, as I tend to use the
Net::SSH::Proxy::SOCKS classes supplied with Net::SSH (which may not
be drop-in replacement in Net::FTP). However I can suggest some things
(1) run a standard ruby build under tsocks:
tsocks ruby myscript.rb
(then all socket calls are transparently socksified). Using tsocks is
also a very good way to check that your ssh -D is working how you
expect, since you can use it with any client such as ‘telnet’
(2) use ‘tcpdump -i lo tcp port 8000’ to see whether your ruby code is
actually trying to use the socks server
(3) try ENV[‘SOCKS_SERVER’] = ‘127.0.0.1:8000’
(4) in your ruby build directory, look in ext/socket/mkmf.log
Also when the compile is running, look for -DSOCKS on the gcc command
line when building the socket extension. If it’s missing then there’s a
(5) give that you’re rebuilding ruby to get SOCKS support, it may be
worth trying a socks5 library. socks4 is very ancient and it wouldn’t
surprise me if it hadn’t been well tested in a while.