TM Terminal: ssh connection does not support modern kex and MAC

[alef75]

Describe the bug ssh and sftp connection (RSE) can't connect to modern ssh server (device) because old and broken ciphers,kex, and MAC are disabled by default on the server.

As I've reported years ago on bugzilla: https://bugs.eclipse.org/bugs/show_bug.cgi?id=560571

Eclipse uses an old ssh implementation that does not support newer and safer ssh parameters.

Eclipse uses jsch library for ssh, that unfortunately seem discontinued.

I've found an update fork of the jsch: https://github.com/mwiede/jsch

could this a viable solution for you ?

[jonahgraham]

Thanks @alef75 for bringing the issue across to GitHub - my comment on Bugzilla may be somewhat dated, but should provide a good starting point:

Thanks Alessandro - that confirms that in the wider Eclipse ecosystem we have an SSH java implementation that will work. It just needs someone to adapt it to o.e.remote + terminal. Fortunately all this code is now in CDT and being built regularly.

For someone taking this on, I think a new implementation modeled on the org.eclipse.remote.jsch.core and related ui/tests bundles is needed for the o.e.remote side and the class org.eclipse.tm.terminal.connector.ssh.connector.SshConnection is the terminal side.

In addition to Bug 520927, the jgit changes in Bug 541272 Bug 541273 Bug 541274 and Bug 541275 would probably be of interest to get those standard ssh client features supported too.