MacOS – How to enable ssh v1 in MacOS Sierra

macosssh

I have just updated to MacOS Sierra, and found that openssh version 1 has beed disabled or removed.

ssh1 is not supported

I have to use ssh1 for some server, how can I enable ssh1?

Or can I install another openssh which support ssh1 tentatively?

Best Answer

Here's my github repo trying to solve the problem by patching the openssh in homebrew/dupes. It's far from perfect but works.

Basically you have to:

brew tap homebrew/dupes
curl -fsSL https://github.com/boltomli/MyMacScripts/raw/master/homebrew/homebrew-dupes.openssh.diff | patch /usr/local/Homebrew/Library/Taps/homebrew/homebrew-dupes/openssh.rb
brew install openssh --with-ssh1

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SSH command has no -Z option – Obfuscated ssh client

Problem sovled. You can download obfuscated-openssh and compile it in MacOS to get a new ssh command.

Download it from https://github.com/brl/obfuscated-openssh.

Download and install gcc - http://www.mkyong.com/mac/how-to-install-gcc-compiler-on-mac-os-x/

$ sudo ./configure
$ make

If there are some errors while compiling it, remember to check this https://discussions.apple.com/thread/2546848?start=0&tstart=0 (see details below)

$ export LDFLAGS="-L. -Lopenbsd-compat/ -fstack-protector-all -mmacosx-version-min=10.4 -lresolv"
$ ./configure
$ make

All done, you will have a new ssh. Check version.

$ ./ssh -v
OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
usage: ssh [-1246AaCfgKkMNnqsTtVvXxYyz] [-b bind_address] [-c cipher_spec]
           [-D [bind_address:]port] [-e escape_char] [-F configfile]
           [-i identity_file] [-L [bind_address:]port:host:hostport]
           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
           [-R [bind_address:]port:host:hostport] [-S ctl_path]
           [-w local_tun[:remote_tun]] [-Z obfuscate_keyword]
           [user@]hostname [command]

MacOS – Connection L2TP via IPSec to VPN as PPTP VPN no longer supported on macOS Sierra

Not open source and not cheap, but Shimo is a way to get back PPTP connections. Is 54 USD though. Be aware though:

Does not support PPTP/L2TP on macOS Catalina

Best Answer

Related Solutions

SSH command has no -Z option – Obfuscated ssh client

MacOS – Connection L2TP via IPSec to VPN as PPTP VPN no longer supported on macOS Sierra

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