CERTWATCH(1) Cryptography Utilities CERTWATCH(1)NAME
certwatch - generate SSL certificate expiry warnings
SYNOPSIS
certwatch [OPTION...] filename
DESCRIPTION
The certwatch program is used to issue warning mail when an SSL
certificate is about to expire.
The program has two modes of operation: normal mode and quiet mode. In
normal mode, the certificate given by the filename argument is
examined, and a warning email is issued to standard output if the
certificate is outside its validity period, or approaching expiry. If
the certificate cannot be found, or any errors occur whilst parsing the
certificate, the certificate is ignored and no output is produced. In
quiet mode, no output is given, but the exit status can still be used.
The certificate can be specified by its nickname or by a path to the
containing file.
OPTIONS--quiet, -q
Enable quiet mode; no output is produced whether the certificate is
expired or not
--period days, -p days
Specify the number of days within which an expiry warning will be
produced; default is 30. Expiry warnings are always produced if, on
the day of invocation, the certificate is not yet valid, has
already expired, or is due to expire either that day or the
following day.
--address address, -a address
Specify the address used in the To field of the warning e-mail
issued if quiet mode is not enabled. The default is root.
--directory cert-directory, -d cert-directory
Specify the database directory containing the certificate and key
database files. The default is yet to be determined.
DIAGNOSTICS
The exit code indicates the state of the certificate:
0
The certificate is outside its validity period, or approaching
expiry
1
The certificate is inside its validity period, or could not be
parsed
NOTES
The certwatch program is run daily by crond from the file
/etc/cron.daily/certwatch to generate warning mail concerning the
imminent expiry of SSL certificates configured for use in the Apache
HTTP server. These warnings can be disabled by adding the line:
NOCERTWATCH=yes to the file /etc/sysconfig/httpd. Additional options to
pass to certwatch can be specified in that file in the CERTWATCH_OPTS
environment variable.
FILES
/etc/cron.daily/certwatch, /etc/sysconfig/httpd
SEE ALSOgenkey(1)crypto-utils 2.4.1 15 March 2013 CERTWATCH(1)