certwatch(1) [centos man page]

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 ALSO

       genkey(1)

crypto-utils 2.4.1						    9 June 2014 						      CERTWATCH(1)

Check Out this Related Man Page

NE_SSL_CERT_IDENTITY(3) 					neon API reference					   NE_SSL_CERT_IDENTITY(3)

NAME

       ne_ssl_cert_identity, ne_ssl_cert_signedby, ne_ssl_cert_issuer, ne_ssl_cert_subject - functions to access certificate properties

SYNOPSIS

       #include <ne_ssl.h>

       const char *ne_ssl_cert_identity(const ne_ssl_certificate *cert);

       const ne_ssl_certificate *ne_ssl_cert_signedby(const ne_ssl_certificate *cert);

       const ne_ssl_dname *ne_ssl_cert_subject(const ne_ssl_certificate *cert);

       const ne_ssl_dname *ne_ssl_cert_issuer(const ne_ssl_certificate *cert);

DESCRIPTION

       The function ne_ssl_cert_identity retrieves the "identity" of a certificate; for an SSL server certificate, this will be the hostname for
       which the certificate was issued. In PKI parlance, the identity is the common name attribute of the distinguished name of the certificate
       subject.

       The functions ne_ssl_cert_subject and ne_ssl_cert_issuer can be used to access the objects representing the distinguished name of the
       subject and of the issuer of a certificate, respectively.

       If a certificate object is part of a certificate chain, then ne_ssl_cert_signedby can be used to find the certificate which signed a
       particular certificate. For a self-signed certificate or a certificate for which the full chain is not available, this function will return
       NULL.

RETURN VALUE

       ne_ssl_cert_issuer and ne_ssl_cert_subject are guaranteed to never return NULL.	ne_ssl_cert_identity may return NULL if the certificate
       has no specific "identity".  ne_ssl_cert_signedby may return NULL as covered above.

EXAMPLES

       The following function could be used to display information about a given certificate:

	   void dump_cert(const ne_ssl_certificate *cert) {
	     const char *id = ne_ssl_cert_identity(cert);
	     char *dn;

	     if (id)
	       printf("Certificate was issued for '%s'.
", id);

	     dn = ne_ssl_readable_dname(ne_ssl_cert_subject(cert));
	     printf("Subject: %s
", dn);
	     free(dn);

	     dn = ne_ssl_readable_dname(ne_ssl_cert_issuer(cert));
	     printf("Issuer: %s
", dn);
	     free(dn);
	   }

SEE ALSO

       ne_ssl_cert_cmp, ne_ssl_readable_dname

AUTHOR

       Joe Orton <neon@lists.manyfish.co.uk>
	   Author.

COPYRIGHT

neon 0.29.6							    3 May 2011						   NE_SSL_CERT_IDENTITY(3)

Linux and UNIX Man Pages

certwatch(1) [centos man page]

Check Out this Related Man Page