11-22-2011
Reserv memory for uid 0 / sshd+shell
Hi!
Does someone know how to ensure that root user always will be able to login to a system?
What I mean is when a server is out of RAM and swapping like hell; sshd may spawn a shell and login root user to save the day?
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LEARN ABOUT DEBIAN
sss_ssh_authorizedkeys
SSS_SSH_AUTHORIZEDKE(1) SSSD Manual pages SSS_SSH_AUTHORIZEDKE(1)
NAME
sss_ssh_authorizedkeys - get OpenSSH authorized keys
SYNOPSIS
sss_ssh_authorizedkeys [options] USER
DESCRIPTION
sss_ssh_authorizedkeys acquires SSH public keys for user USER and outputs them in OpenSSH authorized_keys format (see the "AUTHORIZED_KEYS
FILE FORMAT" section of sshd(8) for more information).
sshd(8) can be configured to use sss_ssh_authorizedkeys for public key user authentication if it is compiled with support for either
"AuthorizedKeysCommand" or "PubkeyAgent" sshd_config(5) options.
If "AuthorizedKeysCommand" is supported, sshd(8) can be configured to use it by putting the following directive in sshd_config(5):
AuthorizedKeysCommand /usr/bin/sss_ssh_authorizedkeys
If "PubkeyAgent" is supported, sshd(8) can be configured to use it by using the following directive for sshd(8) configuration:
PubKeyAgent /usr/bin/sss_ssh_authorizedkeys %u
This is an experimental feature, please use http://fedorahosted.org/sssd to report any issues.
OPTIONS
-d,--domain DOMAIN
Search for user public keys in SSSD domain DOMAIN.
-h,--help
Display help message and exit.
SEE ALSO
sshd(8), sshd_config(5), sss_ssh_knownhostsproxy(1).
AUTHORS
The SSSD upstream - http://fedorahosted.org/sssd
SSSD
03/04/2013 SSS_SSH_AUTHORIZEDKE(1)