User Authentication - Common
Authentication failed
<methodname> authentication failed. Login to account <loginname> not allowed or account non-existent.
The system administrator has denied logging in for the user, or the user
is trying to log in using a non-existent account.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication failed, user does not exist
User <login-name> does not exist.
Authentication failed because the specified user account does not exist.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Root login denied for user
root login denied for user '<<login-name>>'.
User tried to login as root (administrator), but system policy does not
allow root (administrator) logins at all or with password authentication.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication failed, system policy does not allow user's login
User <login-name>'s login is not allowed due to system policy
Authentication failed because the system policy does not allow the user to
log in. The account may be locked or expired, for example.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication failed, username is on DenyUsers list
User <login-name> is denied login because username matched with the deny list.
Authentication failed because the specified username is included in the
server's denied users list.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication failed, username not on AllowUsers list
User <login-name> is denied login because allow list exists, and username was not matched.
Authentication failed because the specified username is not included in
the server's allowed users list.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication failed, user's group is on DenyGroups list
User <login-name> is denied login because user's group is on group deny list.
Authentication failed because the user's group is included in the server's
denied groups list.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication failed, user's group is not on AllowGroups list
User <login-name> is denied login because group allow list exists, and user's group didn't match.
Authentication failed because the user's group is not on the server's
allowed groups list.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication not allowed from a host
<methodname> authentication failed. Connection from <hostname>
denied. Authentication as user <loginname> was attempted.
The server has determined that the user is not allowed to login from the
current host.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication not allowed, unable to reverse map hostname
Login not allowed because host's IP address (<ip-address>) could not be mapped to a hostname and reverse mapping is required.
The server could not map the connecting host's IP address to a hostname
and the configuration option RequireReverseMapping is on.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication not allowed, host is on the DenyHosts list
Login not allowed because the connecting host (<hostname>) is on the
server's deny list.
The connecting host is on the server's denied hosts list, so the
authentication is not allowed.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
Authentication not allowed, host is not on the AllowHosts list
Login not allowed because the connecting host (<hostname>) is not on the server's allow list.
The connecting host is not on the server's allowed hosts list, so the
authentication is not allowed.
Facility: SSH_LOGFACILITY_AUTH
Level: SSH_LOG_WARNING
