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Manual Reference Pages  -  RANCID.CONF (5)

NAME

rancid.conf - rancid environment configuration file

CONTENTS

Description
Variables
Errors
Files
History

DESCRIPTION

rancid.conf contains environment configuration information for rancid-run(1) and rancid-cvs(1), including shell PATH, list of rancid groups, etc. It is read by several scripts at run-time and others inherit the configration from a parent process which has read it.

The syntax of rancid.conf is that of sh(1). rancid.conf is used to set environment variables used by other rancid scripts to effect their run-time behavior or to enable them to find their resources.

VARIABLES

The following variables are used (listed alphabetically):

ACLFILTERSEQ
  Disables filtering of prefix-list/access-list sequence numbers. This option implies ACLSORT=NO for lists with sequence numbers.

Default: YES

ACLSORT
  Permits disabling of access-list sorting, which could alter statement order that had been cleverly crafted by the administrator for optimal performance, thus making recovery and comparsion more difficult.

Default: YES

BASEDIR
  BASEDIR is the directory where rancid-run’s log directory, the revision control system’s repository, and rancid group directories will be placed.

Its value is configure’s localstatedir and should be modified if rancid is moved to a new location in the file system without re-installing from the distribution.

Default: /usr/local/var/rancid

CVSROOT
  cvs(1) and rancid-cvs(1) use this environment variable to locate the CVS repository. In some cases, particularly for Subversion and git, it is used as an argument to commands. In general, it should not be necessary to alter it, but it could be set to a remote location if the the RCS system supports it. If it is a remote location, any necessary authentication must be handled separately from RANCiD, which provides no means of interacting with the remote.

Default: $BASEDIR/CVS

DIFFSCRIPT
  Defines an alternate filter for the output of the RCS diff. The filter should read from stdin and write to stdout. The default is defined in control_rancid and only improves readability.

Example: DIFFSCRIPT="sed -e ’/^=/d’ | expand"; export DIFFSCRIPT

FILTER_PWDS
  Determines which passwords will be filtered from configs. The value may be "NO", "YES", or "ALL" to filter none of the passwords, only those which are reversable or plain-text, or all (plus ssh keys, etc), respectively.

Default: YES

Note: a value of "NO" could be a security issue since diffs are sent via e-mail. A value of "ALL" is encouraged.

Note: FILTER_PWDS does not affect the handling of SNMP community strings. see NOCOMMSTR below.

Note: passwords whose value cycles and would produce erroneous diffs are always filtered (e.g.: Alteon passwords).

LIST_OF_GROUPS
  Defines a list of group names of routers separated by white-space. These names become the directory names in $BASEDIR which contain the data for that set of devices. rancid-run(1) also uses this variable to determine which device groups it should collect. Choose these names to be descriptive of the set of devices and do not use spaces, unprintable characters, etc.

Example: LIST_OF_GROUPS="UofO USFS"

Two groups are defined; UofO (University of Oregon) and USFS (US Forest Service). Each will have a directory created (see rancid-cvs(1)) $BASEDIR/UofO and $BASEDIR/USFS respectively, which will contain their data.

Each group must also have aliases for the administrative and diff recipients set-up in /etc/aliases. For example:

rancid-uofo:            frank
rancid-admin-uofo:      joe,bob
rancid-usfs:            frank
rancid-admin-usfs:      joe,bob

LOCKTIME
  Defines the number of hours a group’s lock file may age before rancid starts to complain about a hung collection. The default is 4 hours.
LOGDIR Directory where rancid-run places log files.

Default: $BASEDIR/logs

MAILDOMAIN
  Define the domain part of addresses for administrative and diff e-mail. The value of this variable is simply appended to the normal mail addresses. For example rancid-usfs@example.com, if MAILDOMAIN had been set to "@example.com".
MAILHEADERS
  Define additional mail headers to be added to rancid mail, such as Precedence or X- style headers. Individual headers must be separated by a \n (new line).

Default: Precedence: bulk

Example: Precedence: bulk\nX-clamation: beef cake

MAILOPTS
  Define additional options used to invoke sendmail(8). By default, this is not set.

Example: MAILOPTS="-f bounces.go.here@example.com"

MAILSPLIT
  Defines the maximum BODY size of diffs in kilobytes, such that diffs are split clunks no larger than N kbytes. The minimum is 0, which disables splitting.

Default: 0.

MAX_ROUNDS
  Defines how many times rancid should retry collection of devices that fail. The minimum is 0.

Default: 4.

NOCOMMSTR
  If set, rancid(1) will filter SNMP community strings from configs. Otherwise, they will be retained and may appear in clear-text in e-mail diffs. By default, this is not set.
NOPIPE If set, rancid(1) will use temporary files to save the output from the router and then read these to build the file which will be saved in CVS (or Subversion or git). Otherwise, an IPC pipe will be used. We have found that the buffering mechanisms used in perl and expect are heinous. Using temporary files may result in a noticeable improvement in speed. By default, this is not set.
OLDTIME
  Specified as a number of hours, OLDTIME defines how many hours should pass since a successful collection of a device’s configuration and when control_rancid(1) should start complaining about failures. The value should be greater than the number of hours between rancid-run cron runs.

Default: 24

PAR_COUNT
  Defines the number of rancid processes that par(1) will start simultaneously as control_rancid(1) attempts to perform collections. Raising this value will decrease the amount of time necessary for a complete collection of a (or all) rancid groups at the expense of system load. The default is relatively cautious. If collections are not completing quickly enough for users, use trial and error of speed versus system load to find a suitable value.

Default: 5

PATH Is a colon separate list of directory pathnames in the the file system where rancid’s sh(1) and perl(1) scripts should look for the programs that it needs, such as telnet(1). Its value is set by configure. Should it be necessary to modify PATH, note that it must include /usr/local/libexec/rancid.
RCSSYS Sets which revision control system is in use. Valid values are cvs for CVS, git for Git or svn for Subversion.

Default: cvs

TERM Some Unix utilities require TERM, the terminal type, to be set to a sane value. Some clients, such as telnet(1) and ssh(1) , communicate this to the server (i.e.: the remote device), thus this can affect the behavior of login sessions on a device. The default should suffice.

Default: network

TMPDIR Some Unix utilities recognize TMPDIR as a directory where temporary files can be stored. In some cases, rancid utilizes this directory for lock files and other temporary files.

Default: /tmp

Each of these are simply environment variables. In order for them to be present in the environment of child processes, each must be exported. See sh(1) for more information on the built-in command export.

ERRORS

rancid.conf is interpreted directly by sh(1), so its syntax follows that of the bourne shell. Errors may produce quite unexpected results.

FILES

/usr/local/etc/rancid/rancid.conf
  Configuration file described here.

SEE ALSO

control_rancid(1), rancid(1), rancid-cvs(1), rancid-run(1)

HISTORY

In RANCID releases prior to 2.3, rancid.conf was named env and located in the bin directory. This was changed to be more consistent with common file location practices.
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--> RANCID.CONF (5) 9 December 2015

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