Quick test with https://launchpad.net/~ahasenack/+archive/ubuntu/openssh-gsskeyex-2053146/+packages on jammy (but there are builds for other releases too), seems to work:
Mar 13 20:52:58 j-keyex sshd[1638]: Authorized to ubuntu, krb5 principal andreas@LOWTECH (krb5_kuserok) Mar 13 20:52:58 j-keyex sshd[1638]: Accepted gssapi-keyex for ubuntu from 10.0.102.1 port 48450 ssh2: andreas@LOWTECH
Quick test with https:/ /launchpad. net/~ahasenack/ +archive/ ubuntu/ openssh- gsskeyex- 2053146/ +packages on jammy (but there are builds for other releases too), seems to work:
Mar 13 20:52:58 j-keyex sshd[1638]: Authorized to ubuntu, krb5 principal andreas@LOWTECH (krb5_kuserok)
Mar 13 20:52:58 j-keyex sshd[1638]: Accepted gssapi-keyex for ubuntu from 10.0.102.1 port 48450 ssh2: andreas@LOWTECH