MAN page from RedHat Other ax25-utils-2.1.22-1.i386.rpm

AXSPAWN

Section: Linux System Managers Manual (8)
Updated: 25 August 1996
Index

NAME

axspawn - Allow automatic login to a Linux system.

SYNOPSIS

axspawn [--wait, -w]

DESCRIPTION

Axspawnwill check if the peer is an AX.25 connect, the callsign a valid AmateurRadio callsign, strip the SSID, check if UID/GID are valid, allow apassword-less login if the password-entry in /etc/passwd is "+" orempty; in every other case login will prompt for a password.

Axspawncan create user accounts automatically. You may specify the user shell,first and maximum user id, group ID in the config file and (unlike WAMPES)create a file "/etc/ax25/ax25.profile" which will be copied to~/.profile.

SECURITY

Auto accounting is a security problem by definition. Unlike WAMPES, whichcreates an empty password field, Axspawn adds an "impossible" ('+')password to /etc/passwd. Login gets called with the "-f" option, thusnew users have the chance to login without a password. (I guess this won'twork with the shadow password system).

Of courseaxspawndoes callsign checking: Only letters and numbers are allowed, the callsignmust be longer than 4 characters and shorter than 6 characters (withoutSSID). There must be at least one digit, and max. two digits within thecall. The SSID must be within the range of 0 and 15. Please drop me a noteif you know a valid Amateur Radio callsign that does not fit this pattern_and_ can be represented correctly in AX.25.

OPTIONS

-w, --wait: Disables the prompting for a password if the password entry in /etc/passwdis either a "+" or blank.

FILES

/etc/passwd
/etc/ax25/ax25.profile
/etc/ax25/axspawn.conf

AUTHOR

Joerg Reuter DL1BKE <jreuterAATTlykos.oche.de>

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