Chaining multiple SSH proxies

For A->B->C->D->Internet

[hostA]$ ssh -2 -C -D 55557 -L 55556:127.0.0.1:55556 -L 55555:127.0.0.1:55555 user@B
[hostB]$ ssh -2 -C -D 55556 -L 55555:127.0.0.1:55555 user@C
[hostC]$ ssh -2 -C -D 55555 user@D

Note that for each hop, you need an additional matching forwarder -L on the previous hosts in the chain.

References:

• ssh tunnel via multiple hops
• This posting shows how to chain an arbitrary number of proxies: http://sophiedogg.com/ssh-proxy-through-multiple-servers/
• The template for this solution: http://sysextra.blogspot.com/2013/10/multi-hop-ssh-socks-proxy.html
• How can I use SSH with a SOCKS 5 proxy?
• http://www.jethrocarr.com/2013/03/13/ssh-via-socks-proxies/