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Full Discussion: Blocking an IP address
Operating Systems Linux Red Hat Blocking an IP address Post 302498693 by mark54g on Tuesday 22nd of February 2011 07:55:15 AM
Old 02-22-2011
Also,

Please refrain from calling it "Linux 5." The Linux kernel is on version 2.6.3x. Red Hat puts out a distribution called "Red Hat Enterprise Linux" and you are likely on version 5 of that software. Calling it "Linux 5" can cause confusion, even if it is under the Red Hat forums.

That being said,

You may want to look into hosts.deny and perhaps iptables. Hosts.deny will disallow logins from certain areas and iptables can simply drop packets from a particular rule base, which can contain an IP address or range.
 

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SPACEWALK-CHANNEL(8)						   Red Hat, Inc.					      SPACEWALK-CHANNEL(8)

NAME
spacewalk-channel - Subscribe to or unsubscribe system from channel. SYNOPSIS
spacewalk-channel [options] DESCRIPTION
spacewalk-channel allows you to subscribe to and unsubscribe from specified channels via the command line. A visit to the "Spacewalk Server", "Red Hat Satellite" or "Red Hat Network Classic" website isn't required. OPTIONS
-l, --list Print a list of channel(s) that you are currently subscribed to. -b, --base Print a base channel that you are currently subscribed to. -L, --available-channels Print a list of all available child channels. -a, --add You are subscribing system to given channel(s). You have to specify --user and --password. -r, --remove You are unsubscribing system to given channel(s). You have to specify --user and --password. -u, --user Your username used to register the system with and for Red Hat Network Classic, Red Hat Satellite or Spacewalk. If you do not enter this option and it is required, you will be prompted. -p, --password The password associated with the username specified with the --user option. This is an unencrypted password. If you do not enter this option and it is required, you will be prompted. -c, --channel Label of channel you want to subscribe to or unsubscribe from. Can be specified multiple times. -v, --verbose Print out successfull action. -h, --help Show a help message and exit. NOTE
The addition and removal of channels is mutually exclusive, please use the command twice. EXAMPLES
Subscribe to two channels: spacewalk-channel --add -c rhn-tools-rhel-i386-server-5 -c rhel-i386-server-vt-5 --user username --password password Unsubscribe from channel: spacewalk-channel --remove -c rhn-tools-rhel-i386-server-5 -c rhel-i386-server-vt-5 --user username --password password List subscribed channels: spacewalk-channel --list SEE ALSO
rhnplugin(8), rhn_register(8), up2date(5). AUTHORS
Miroslav Suchy <msuchy@redhat.com> BUGS
Report bugs to <http://bugzilla.redhat.com>. COPYRIGHT
Copyright (C) 2009-2010 Red Hat, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Linux 2010 August 30 SPACEWALK-CHANNEL(8)
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