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NAME

saslauthd

 - sasl authentication server

 

SYNOPSIS

DESCRIPTION

The server fulfills two roles: it isolates all code requiring superuser privileges into a single process, and it can be used to provide proxy authentication services to clients that do not understand SASL based authentication.

should be started from the system boot scripts when going to multi-user mode. When running against a protected authentication database (e.g. the shadow mechanism), it must be run as the superuser.  

Options

-a authmech

Use authmech as the authentication mechanism. (See the Sx AUTHENTICATION MECHANISMS section below.) This parameter is mandatory.

-O option

A mechanism specific option (e.g. rimap hostname or config file path)

-H hostname

The remote host to be contacted by the rimap authentication mechanism. (Depricated, use -O instead)

-m path

Use path as the pathname to the named socket to listen on for connection requests. This must be an absolute pathname, and MUST NOT include the trailing "/mux". Note that the default for this value is "/var/state/saslauthd" (or what was specified at compile time) and that this directory must exist for saslauthd to function.

-n threads

Use threads processes for responding to authentication queries. (default: 5) A value of zero will indicate that saslauthd should fork an individual process for each connection. This can solve leaks that occur in some deployments..

-s size

Use size as the table size of the hash table (in kilobytes)

-t timeout

Use timeout as the expiration time of the authentication cache (in seconds)

-T

Honour time-of-day login restrictions.

-h

Show usage information

-c

Enable cacheing of authentication credentials

-l

Disable the use of a lock file for controlling access to accept().

-r

Combine the realm with the login (with an '@' sign in between). e.g. login: "foo" realm: "bar" will get passed as login: "foo@bar". Note that the realm will still be passed, which may lead to unexpected behavior.

-v

Print the version number and available authentication mechanisms on standard error, then exit.

-d

Debugging mode.

Logging

AUTHENTICATION MECHANISMS

dce

(AIX)

Authenticate using the DCE authentication environment.

getpwent

(All platforms)

Authenticate using the getpwent ();
library function. Typically this authenticates against the local password file. See your systems getpwent(3) man page for details.

kerberos4

(All platforms)

Authenticate against the local Kerberos 4 realm. (See the Sx NOTES section for caveats about this driver.)

kerberos5

(All platforms)

Authenticate against the local Kerberos 5 realm.

pam

(Linux, Solaris)

Authenticate using Pluggable Authentication Modules (PAM).

rimap

(All platforms)

Forward authentication requests to a remote IMAP server. This driver connects to a remote IMAP server, specified using the -O flag, and attempts to login (via an IMAP `LOGIN' command) using the credentials supplied to the local server. If the remote authentication succeeds the local connection is also considered to be authenticated. The remote connection is closed as soon as the tagged response from the `LOGIN' command is received from the remote server.

The option parameter to the -O flag describes the remote server to forward authentication requests to. hostname can be a hostname (imap.example.com) or a dotted-quad IP address (192.168.0.1). The latter is useful if the remote server is multi-homed and has network interfaces that are unreachable from the local IMAP server. The remote host is contacted on the `imap' service port. A non-default port can be specified by appending a slash and the port name or number to the hostname argument.

The -O flag and argument are mandatory when using the rimap mechanism.

shadow

(AIX, Irix, Linux, Solaris)

Authenticate against the local Qq shadow password file . The exact mechanism is system dependent. currently understands the getspnam ();
and getuserpw ();
library routines. Some systems honour the -T flag.

sasldb

(All platforms)

Authenticate against the SASL authentication database. Note that this is probabally not what you want to be using, and is even disabled at compile-time by default. If you want to use sasldb with the SASL library, you probably want to use the pwcheck_method of "auxprop" along with the sasldb auxprop plugin instead.

ldap

(All platforms that support OpenLDAP 2.0 or higher)

Authenticate against an ldap server. The ldap configuration parameters are read from /etc/saslauthd.conf. The location of this file can be changed with the -O parameter. See the LDAP_SASLAUTHD file included with the distribution for the list of available parameters.

sia

(Digital UNIX)

Authenticate using the Digital UNIX Security Integration Architecture (a.k.a. Qq enhanced security ) .

NOTES

FILES

/var/run/saslauthd/mux

The default communications socket.

/etc/saslauthd.conf

The default configuration file for ldap support.

SEE ALSO

Index

NAME

SYNOPSIS

DESCRIPTION

Options

Logging

AUTHENTICATION MECHANISMS

NOTES

FILES

SEE ALSO

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