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Really Awesome New Cisco confIg Differ with git extensions and support for colorized emails!
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Rancid is a "Really Awesome New Cisco confIg Differ" developed to maintain CVS controlled copies of router configs. *** The Following Information is Very Important **** Rancid 2.3 introduces a new directory layout. It has been changed to more closely follow the standard path hierarchy, which is defined by the FHS standard and autoconf, and/or make these locations more easily configurable within rancid. The obvious advantage of this is making rancid more easily packagable; i.e.: NetBSD pkgsrc, FreeBSD port, Linux RPM, etc. Please please please please read the UPGRADING file for more information. ********** The following is the packing list for Rancid, excluding files supporting configure (autoconf) and make. .in is stripped from the files below by configure as substitutions are completed: README This file. README.lg Information about the Looking Glass. BUGS Bug list. CHANGES List of changes to Rancid. COPYING RANCID license. FAQ Frequently Asked Questions Todo Partial list of what needs to be done. UPGRADING Notes on upgrading rancid to a new version. cloginrc.sample TCL commands to set passwords, usernames etc. used by clogin and jlogin. See cloginrc(5) etc/ lg.conf.sample Sample Looking Glass configuration rancid.conf.sample Sample RANCID configuration bin/ clogin.in Expect script that logs into routers and either presents an interactive shell, runs a set of commands, or runs another expect script. It handles Cisco, Extreme, Force10, Juniper E-series, Procket, Redback, Zebra/MRT. control_rancid.in Builds router list, calls rancid on each router and handles cvs routines. hpuifilter.c HP procurve login filter - see hlogin(1). par.in Parallel processing of commands - any commands. rancid-cvs.in Creates all of the CVS and config directories. rancid-run.in Script designed to be run from cron. rancid-fe.in Chooses between rancid/[abefhjrx]rancid/cat5rancid. rancid.in Runs commands on cisco routers and processes the output. agmrancid.in Version of rancid.in for Cisco Anomaly Guard Module (AGM) arancid.in Version of rancid.in for Alteon switches. brancid.in Version of rancid.in for baynet/nortel routers. cat5rancid.in Version of rancid.in for Cisco Catalyst switches. cssrancid.in Version of rancid.in for Cisco CSS switches. erancid.in Version of rancid.in for ADC EZ-T3 muxes. f10rancid.in Version of rancid.in for Force10 routers. f5rancid.in Version of rancid.in for F5 BigIPs. fnrancid.in Version of rancid.in for Fortinet Firewalls. francid.in Version of rancid.in for Foundry switches. hrancid.in Version of rancid.in for HP Procurve switches. htrancid.in Version of rancid.in for Hitatchi routers. jerancid.in Version of rancid.in for Juniper E-series routers. jrancid.in Version of rancid.in for Juniper routers. mrancid.in Version of rancid.in for MRT daemons. nrancid.in Version of rancid.in for Netscreen firewalls. nsrancid.in Version of rancid.in for Netscalars. prancid.in Version of rancid.in for Procket routers. rivancid.in Version of rancid.in for Riverstone routers. rrancid.in Version of rancid.in for Redback routers. srancid.in Version of rancid.in for SMC switches. tntrancid.in Version of rancid.in for TNT access servers. xrancid.in Version of rancid.in for Extreme switches. zrancid.in Version of rancid.in for Zebra routers. alogin.in Version of clogin.in for Alteon switches. blogin.in Version of clogin.in for baynet/Nortel routers. elogin.in Version of clogin.in for ADC EZ-T3 muxes. flogin.in Version of clogin.in for Foundry switches. If foundry cleaned-up their bloody UI, clogin should do the job. hlogin.in Version of clogin.in for HP procurve switches. htlogin.in Version of clogin.in for Hitatchi routers. jlogin.in Version of clogin.in for Juniper routers. nlogin.in Version of clogin.in for Netscreen firewalls. nslogin.in Version of clogin.in for Netscalars. rivlogin.in Version of clogin.in for Riverstone routers. tntlogin.in Version of clogin.in for TNT access servers. man/ man pages share/ Readmes, samples, utilities, contribs, etc include/ Include files and rancid version.h Also see rancid_intro(1), rancid(1), and clogin(1). The following (non-exhaustive list) are included as part of the installation and configuration tools: Makefile.am processed by automake to produce Makefile.in Makefile.in processed by configure to produce Makefile acinclude.m4 sets some GNU autoconf options aclocal.m4 Output of GNU autoconf script configure GNU autoconf script configure.in Input file for autoconf to procide configure depcomp part of GNU autoconf install-sh GNU autoconf shell script to simulate BSD style install missing part of GNU autoconf mkinstalldirs GNU autoconf shell script to make installation directories rancid will also need to have the following packages: cvs Code revision system available from prep.ai.mit.edu:/pub/gnu gnudiff gnudiff provides the uni-diff (-u) option. If you do not have a diff that supports -u, configure will set-up rancid to use 'diff -c' or 'diff -C'. perl5 perl version 5 or greater available from www.cpan.org expect http://expect.nist.gov/ We highly suggest that you stick to expect 5.24.1 (or so). This seems to work best. Note that you need to have the accompanying tcl &/ tk. svn Code revision system, an alternative to cvs. Available from http://subversion.tigris.org/tarballs/. Use the configure option --with-svn to configure for Subversion. tcl Required by expect. Bill Fenner (now maintained by others) has a cgi script for interacting with CVS repositories via a web interface. This provides a great way to view rancid diffs and full configs, especially for those unfamiliar with cvs. The package is not included, but can be found here: http://www.freebsd.org/projects/cvsweb.html Quick Installation Guide (an example): 1) ./configure [--prefix=<basedir>] By default, rancid will be installed under /usr/local/rancid (the default "prefix"). This can be overridden with the --prefix option. E.g.: ./configure --prefix=/home/rancid Rancid uses autoconf's "localstatedir" as the location of it's logs, CVS or Subversion respository, and directories where it's groups are placed. The user who will run rancid (from cron, etc) will need write access to these directories. By default, this is <prefix>/var, or /home/rancid/var following the example above. We realize that this is not optimal, but it follows the standards. We suggest that this be altered to include the package name, like so: ./configure --prefix=/home/rancid \ --localstatedir=/home/rancid/var/rancid The user who will run rancid must have write permission in "localstatedir". See ./configure --help for other configure options. 2) make install 3) Modify <sysconfdir>/rancid.conf (e.g.: <basedir>/etc/rancid.conf). The variable LIST_OF_GROUPS is a space delimited list of router "groups". E.g.: LIST_OF_GROUPS="backbone aggregation switches" 4) Put .cloginrc in the home directory of the user who will run rancid. .cloginrc must be not be readable/writable/executable by "others", i.e.: .cloginrc must be mode 0600 or 0640. 5) Modify .cloginrc. Test to make sure that you can log into every router. Note: the juniper user you use *must* log into a cli shell (which is the default on a juniper). See the file cloginrc.sample, located in <datadir> (<basedir>/share/rancid), for examples and good starting point. Also take a look at the cloginrc manual page, 'man -M <basedir>/man cloginrc'. 6) Modify /etc/aliases Rancid sends the diffs and other administrative emails to rancid-<GROUP> and problems to rancid-admin-<GROUP>, where <GROUP> is the "GROUP" of routers. This way you can separate your backbone routers from your access routers or separate based upon network etc... Different router uses forced different people being interested in router "groups" - thus this setup. Make sure email to rancid-<GROUP> works. /etc/aliases can be maintainable by Majordomo stuff, but make sure the user that runs rancid can post to the list. The Precedence header set to bulk or junk *hopefully* avoids replies from auto-responders and vacation type mail filters. The --enable-mail-plus option to configure will set each of the "rancid-" addresses mentioned above to "rancid+". See sendmail's operation manual for more information on handling of '+'. The --enable-adminmail-plus configure option will set each of the "rancid-admin-" addresses mentioned above to "rancid-admin+". If this option is not used, the value of --enable-mail-plus is assumed. That is, the addresses will be "rancid+", if it is specified. 7) Run rancid-cvs. This creates all of the necessary directories and config files for each of the groups in LIST_OF_GROUPS and imports them into CVS (or Subversion). This will also be run each time a new group is added. Do not create the directories or CVS repository manually, allow rancid-cvs do it. Also see 'man -M <basedir>/man rancid-cvs'. 8) For each "group", modify the router.db file in the group directory. The file is of the form "router:mfg:state" where "router" is the name (we use FQDN) of the router, mfg is the manufacturer from the set of (cat5|cisco|juniper) (see router.db.5 for a complete list and description), and "state" is either up or down. Each router listed as "up" will have the configuration grabbed. Note: manufacturer cat5 is intended only for cisco catalyst switches running catalyst (not IOS) code. e.g.: <localstatedir>/<group>/router.db: cisco-router.domain.com:cisco:up adc-mux.domain.com:ezt3:up foundry-switch-router.domain.com:foundry:up juniper-router.domain.com:juniper:up redback-dsl-router.domain.com:redback:down extreme-switch.domain.com:extreme:down 9) For first-time users or new installations, run bin/rancid-run (with no arguments) and check the resulting log file(s) (in logs/*) for errors. Repeat until there are no errors. 10) Put rancid-run in cron to be called however often you want it to run for each group (rancid-run [<GROUP>]). If you run it less often than once/hour, check the setting of OLDTIME in etc/rancid.conf. E.g.: # run config differ hourly 1 * * * * <BASEDIR>/bin/rancid-run # clean out config differ logs 50 23 * * * /usr/bin/find <localstatedir>/logs -type f -mtime +2 -exec rm {} \; 11) Note: If you are using any of these programs (other than rancid-run) out of cron, make sure that you set your $PATH correctly so that they work. E.g.: if you are using clogin, it can call id, telnet, ssh, and/or rsh. configure already makes sure that $PATH is set correctly in etc/rancid.conf for rancid-run, so you could use the $PATH from there. e.g.: 50 23 * * * . <sysconfdir>/rancid.conf; clogin -c 'sh vers' router 12) Send any bugs, suggestions or updates to [email protected]. See the web page at http://www.shrubbery.net/rancid. We have created the standard mailing lists for those interested; [email protected] and [email protected]. Subscribe by sending an email whose body contains "subscribe rancid-<announce or discuss>" to [email protected]. If you are reporting problems, please include the version of rancid, expect, and your OS in the email. Problem with clogin/telnet hanging within rancid or scripts? If you have experienced rancid (or more precisely, telnet) hanging on a solaris 2.6 box; check to be sure you have the following two o/s patches installed (see showrev -p). There may be more recent versions of these patches and they are likely included with 2.7 and 2.8: Patch-ID# 105529-08 Keywords: security tcp rlogin TCP ACK FIN packet listen Synopsis: SunOS 5.6: /kernel/drv/tcp patch Patch-ID# 105786-11 Keywords: security ip tcp_priv_stream routing ip_enable_group_ifs ndd Synopsis: SunOS 5.6: /kernel/drv/ip patch Another contributor to rancid "hanging", with or without the o/s patches mentioned above, is a bug in expect/tcl. We've noticed that expect (from 5.24.1 forward), and whatever tcl happens to compile with it, exhibits a problem on Linux and Solaris where rancid's scripts hang waiting for input from the device. Patches to expect are available on the rancid web page. Also, for rancid 2.3 and later, changes were made to the login scripts which use some more elaborate regexes that have failed with expect versions prior to 5.40. While 5.40 works, it still seems to need the patch offered on the rancid web page for Linux and Solaris. See www.shrubbery.net/rancid for additional notes on this.
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