Bug Tracker ... ID 949741 ... Bug ID 949741: Enabling ssh-dss authentication fails for 'HostKeyAlgorithms=+alg' syntax ... Last Modified: Jun 28, 2025 ... Affected Product(s): ... BIG-IP TMOS(all modules) ... Known Affected Versions: ... Opened: Sep 29, 2020 ... Severity: 3-Major ... 'ssh -o HostKeyAlgorithms=+ssh-dss' fails, and does not enable ssh-dss. ... ssh-dss can't be enabled with the '+alg' syntax. ... -- ssh-dss is disabled -- attempt to enable ssh-dss in an ssh command using the '+alg' syntax ... Use the syntax '-o HostKeyAlgorithms=ssh-dss' instead. ... Fix Information ... Behavior Change ... Guides & references ... K10134038: F5 Bug Tracker Filter Names and Tips