patterns

patterns

.Pf ( Ql *

.Pf ( Ql *

and

and

serve as wildcards).

serve as wildcards).

The list may also contain

The list may also contain

patterns negated by prefixing them with

patterns negated by prefixing them with

if the canonical host name matches a negated pattern, the key is not accepted.

if the canonical host name matches a negated pattern, the key is not accepted.

The purpose

The purpose

of this option is to optionally increase security: public key authentication

of this option is to optionally increase security: public key authentication

name (when authenticating a client) or against the user-supplied

name (when authenticating a client) or against the user-supplied

name (when authenticating a server).

name (when authenticating a server).

A pattern may also be preceded by

A pattern may also be preceded by

to indicate negation: if the host name matches a negated

to indicate negation: if the host name matches a negated

pattern, it is not accepted (by that line) even if it matched another

pattern, it is not accepted (by that line) even if it matched another

pattern on the line.

pattern on the line.

group or supplementary group list matches one of the patterns.

group or supplementary group list matches one of the patterns.

.Ql \&*

.Ql \&*

and

and

can be used as

can be used as

wildcards in the patterns.

wildcards in the patterns.

Only group names are valid; a numerical group ID is not recognized.

Only group names are valid; a numerical group ID is not recognized.

match one of the patterns.

match one of the patterns.

.Ql \&*

.Ql \&*

and

and

can be used as

can be used as

wildcards in the patterns.

wildcards in the patterns.

Only user names are valid; a numerical user ID is not recognized.

Only user names are valid; a numerical user ID is not recognized.

group list matches one of the patterns.

group list matches one of the patterns.

.Ql \&*

.Ql \&*

and

and

can be used as

can be used as

wildcards in the patterns.

wildcards in the patterns.

Only group names are valid; a numerical group ID is not recognized.

Only group names are valid; a numerical group ID is not recognized.

Login is disallowed for user names that match one of the patterns.

Login is disallowed for user names that match one of the patterns.

.Ql \&*

.Ql \&*

and

and

can be used as wildcards in the patterns.

can be used as wildcards in the patterns.

Only user names are valid; a numerical user ID is not recognized.

Only user names are valid; a numerical user ID is not recognized.

By default, login is allowed for all users.

By default, login is allowed for all users.