I'm not sure if the compat team is interested in this... I build OpenSSH on antique systems for regression testing, like Fedora 1 and Ubuntu 4. On Fedora 1 this is observed (Ubuntu 4 is OK): $ ssh 172.16.4.138 Last login: Sun Aug 9 23:39:18 2020 from 172.16.2.10 unknown terminal "xterm-256color" unknown terminal "xterm-256color" I'm not sure where xterm-256color comes from, but it seems to be specific to Fedora 1. The only mention I can find of it is: $ sudo grep -IR xterm-256color /etc /etc/termcap:# * add xterm-88color and xterm-256color -TD My .bashrc and .bash_profile both exports XTERM=xterm, so it may be something related to the antique SSH config files. Even though I am running OpenSSH 8.3, config still comes from the original F1 files. It may be one of the old F1 settings. Jeff _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev