Harder, Faster, Stronger SSH clients

ssh -4 -C -c blowfish-cbc
We force IPv4, compress the stream, specify the cypher stream to be Blowfish. I suppose you could use aes256-ctr as well for cypher spec. I'm of course leaving out things like master control sessions and such as that may not be available on your shell although that would speed things up as well.

18
By: vxbinaca
2009-12-15 00:30:53

What Others Think

You are right in using "Harder" since this command is harder to type than "ssh". :-) To speed test other ciphers, the openssl command provides a speed test which you can run on your own machine: openssl speed aes rc4 blowfish
bwoodacre · 465 weeks and 3 days ago
@bwoodacre Thats why you alias it in your .bashrc. External programs who call it won't be calling the alias.
vxbinaca · 465 weeks and 3 days ago
Or put this in ~/.ssh/config to do the same thing in a more readable way and avoid the alias: Host * AddressFamily inet Compression yes Cipher blowfish
bradleybuda · 465 weeks and 2 days ago
Forcing ipv4 seems a bit pointless & short-sighted. I for one use IPv6 almost exclusively on my LAN.
snow93 · 464 weeks and 5 days ago
The rest of the world unfortunately uses 4, but 6 can be forced as well. You use it for domains, ex: [alias'd SSH] srv1.domain.com -p 3345
vxbinaca · 464 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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