Provided by: rancid_3.9-1_amd64 bug


       rancid_intro - introduction to the Really Awesome New Cisco confIg Differ


       rancid  is  really  more  than  just  a  Cisco  configuration  differ.  It handles several
       different device's  configurations;  currently  including  Alteon,  Arista,  Bay  Networks
       (Nortel),  Cisco,  Extreme,  F5  BigIP,  Force10, Fortinet, Foundry, HP Procurve switches,
       Hauwei VRP, Hitachi, Juniper  Routers  and  edge  (ERX)  routers,  MRTd  daemon,  Microtik
       routers,  Netscalar  load  balancers, Netscreen firewalls, Procket, Redback, SMC switches,
       Xirrus arrays, Zebra routing software, and the ADC-Kentrox EZ-T3 mux.

       rancid uses an expect script to login using ssh, telnet, or rsh  to  each  of  a  list  of
       devices  and  run  a  set  of  commands for that device-type and collects the output.  The
       output is run through some filtering to  summarize,  reformat,  and/or  snip  unwanted  or
       security related data such as chassis temperature and easily reverse-able passwords.

       Named after the device's name in the group's configuration file (router.db), the resulting
       files are saved in the directory <group>/configs.  Except for the data filtered  from  the
       configuration  file  for  security  reasons, such as reversable passwords, these files are
       suitable for loading directly to restore a lost  configuration.   See  rancid.conf(5)  for
       more information on <group>s.

       After  filtering,  a  uni-diff  (see  diff(1))  of  the result is produced for each of the
       devices in a group against that of the previous run of rancid  and  is  e-mailed  to  that
       group's mail list, "rancid-<group>".  This e-mail will also include any differences of the
       device list in the group's configuration file, router.db.

       Lastly, all the  updated  files  are  checked  into  the  revision  control  system  (CVS,
       Subversion,  or  git).  And, administrative messages, such as collections that are failing
       for longer than OLDTIME, are mailed to "rancid-admin-<group>".

       Additional utilities, including a looking glass, come with  rancid.   See  rancid's  share
       directory ( share/rancid).


       Below  is  a sample of a uni-diff produced from the group "shrubbery" for the device named, which happens to be a Cisco GSR.

       From: rancid
       Subject: shrubbery router config diffs
       Precedence: bulk

       Index: configs/
       retrieving revision 1.144
       diff -u -4 -r1.144
       @@ -57,14 +57,8 @@
         !Slot 2/MBUS: hvers 1.1
         !Slot 2/MBUS: software 01.36 (RAM) (ROM version is 01.33)
         !Slot 2/MBUS: 128 Mbytes DRAM, 16384 Kbytes SDRAM
       - !Slot 6: 1 Port Gigabit Ethernet
       - !Slot 6/PCA: part 73-3302-03 rev C0 ver 3, serial CAB031216OL
       - !Slot 6/PCA: hvers 1.1
       - !Slot 6/MBUS: part 73-2146-07 rev B0 dev 0, serial CAB031112SB
       - !Slot 6/MBUS: hvers 1.2
       - !Slot 6/MBUS: software 01.36 (RAM) (ROM version is 01.33)
         !Slot 7: Route Processor
         !Slot 7/PCA: part 73-2170-03 rev B0 ver 3, serial CAB024901SI
         !Slot 7/PCA: hvers 1.4
         !Slot 7/MBUS: part 73-2146-06 rev A0 dev 0, serial CAB02060044

       In this example, we see that  a  Gigabit  Ethernet  linecard  was  removed  from  slot  6.
       However, since this data is collected from "show" commands on the router, it could just as
       easily be that the card crashed  so  the  RP  can  not  communicate  with  it  to  collect


       Installation  instructions  are  included in the distribution's top-level directory in the
       README file (which will be installed in share/rancid).  Once the installation is complete,
       start  by  reading the man pages listed below or follow the basic instructions included in
       the README file.

       See for information on new versions, mail lists, etc.


       Follow this procedure for adding new groups:

       o      Update the LIST_OF_GROUPS variable in etc/rancid.conf (see rancid.conf(5)).

       o      Run rancid-cvs(1).

       o      Update the system's mail aliases file /etc/aliases (see rancid.conf(5)).


       clogin(1),  cloginrc(5),   control_rancid(1),   lg_intro(1),   rancid(1),   rancid-run(1),
       rancid.conf(5), router.db(5)

                                          10 August 2018                          rancid_intro(1)