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Full Discussion: How to migrate ?
Top Forums UNIX for Dummies Questions & Answers How to migrate ? Post 3883 by Neo on Thursday 12th of July 2001 10:18:16 PM
Old 07-12-2001
Whoa! Migrating to a new OS can be easy or it can your worse nightmare. Most people that run production environments do a lab-migration before migrating the production server.

Typically, I build a new server with the new OS and then migrate the applications over to the new OS step-by-step. After everything looks good, I cut the new server over to replace the old. Trying to migrate on a live server is asking for trouble because what ever can go wrong will (broken links, missing libs, permission problems, you name it).

However, simply rebuilding and upgrading a kernel or adding libs is usually OK (if you are CAREFUL and have a recovery plan).
 

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DENYHOSTS(8)							   User Commands						      DENYHOSTS(8)

NAME
DenyHosts - version: 2.6 DESCRIPTION
DenyHosts is a python program that automatically blocks ssh attacks by adding entries to /etc/hosts.deny. DenyHosts will also inform Linux administrators about offending hosts, attacked users and suspicious logins. Usage: /usr/sbin/denyhosts [-f logfile | --file=logfile] [ -c configfile | --config=configfile] [-i | --ignore] [-n | --noemail] [--purge] [--migrate] [--daemon] [--sync] [--version] --file: The name of log file to parse --ignore: Ignore last processed offset (start processing from beginning) --noemail: Do not send an email report --unlock: if lockfile exists, remove it and run as normal --migrate: migrate your HOSTS_DENY file so that it is suitable for --purge --purge: expire entries older than your PURGE_DENY setting --daemon: run DenyHosts in daemon mode --foreground: run DenyHosts in foreground mode --sync: run DenyHosts synchronization mode --version: Prints the version of DenyHosts and exits Note: multiple --file args can be processed. If multiple files are provided, --ignore is implied Note: in a debian system, the default running mode is daemon mode and the configuration file is etc/denyhosts.conf When run in --daemon mode the following flags are ignored: --file, --purge, --migrate, --sync, --verbose SEE ALSO
Please refer to http://denyhosts.sourceforge.net/faq.html for full documentation This file can be also found in /usr/share/doc/deny- hosts/FAQ.html AUTHOR
DenyHosts was written by Phil Schwartz <phil_schwartz@users.sourceforge.net> This manual page was written by Marco Bertorello <marco@bertorello.ns0.it> for the Debian project (but may be used by others). DenyHosts version: 2.6 July 2006 DENYHOSTS(8)
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