Renew passhportd TLS certificate¶
If you installed PaSSHport a year from now, you may encounter this message when you try to connect :
# ssh email@example.com No such user in PaSSHport database. tip: it can be a SSL certificate misconfiguration. Connection to passhport.example.com closed #
This usually means that passhport (the script) can't connect to passhportd, and the most common cause is that the TLS certificate generated on installation is outdated.
passhport@passhport-srv:~$ openssl x509 -in /home/passhport/certs/cert.pem -noout -text | grep Validity -A 2 Validity Not Before: Sep 11 10:48:55 2020 GMT Not After : Sep 11 10:48:55 2021 GMT passhport@passhport-srv:~$
As you can see above, the cert is only generated for a year. It has been created on PaSSHport automated installation.
Renew certificate with OpenSSL¶
To renew the certificate, use the openssl command, as follow :
root@passhport:~# openssl req -new -key "/home/passhport/certs/key.pem" \ -config "/home/passhport/passhport/tools/openssl-for-passhportd.cnf" \ -out "/home/passhport/certs/cert.pem" \ -subj "/C=FR/ST=Ile De France/L=Ivry sur Seine/O=LibrIT/OU=DSI/CN=passhport.librit.fr" \ -x509 \ -days 365 \ -sha256 \ -extensions v3_req root@passhport:~#
This will generate a self-signed certificate, like the one generated during the installation. It will be valid for 1 year. Change the values to your needs.
You now just need to restart passhportd :
root@passhport:~# systemctl restart passhportd.service root@passhport:~#
You should now be able to use PaSSHport again.