update-ca-certificates


SYNOPSIS
       update-ca-certificates [options]

DESCRIPTION
       This manual page documents briefly the update-ca-certificates command.

       update-ca-certificates   is   a  program  that  updates  the  directory
       /etc/ssl/certs to hold SSL certificates and generates certificates.crt,
       a concatenated single-file list of certificates.

       It reads the file /etc/ca-certificates.conf. Each line gives a pathname
       of a CA certificate under  /usr/share/ca-certificates  that  should  be
       trusted.  Lines that begin with "#" are comment lines and thus ignored.
       Lines that begin with "!" are deselected, causing the  deactivation  of
       the CA certificate in question. Certificates must have a .crt extension
       in order to be included by update-ca-certificates.

       Furthermore  all  certificates  with  a  .crt  extension  found   below
       /usr/local/share/ca-certificates   are   also  included  as  implicitly
       trusted.

       Before  terminating,  update-ca-certificates   invokes   run-parts   on
       /etc/ca-certificates/update.d  and  calls each hook with a list of cer-
       tificates: those added are prefixed with a +, those  removed  are  pre-
       fixed with a -.

OPTIONS
       A summary of options is included below.

       -h, --help
              Show summary of options.

       -v, --verbose
              Be verbose. Output c_rehash.

       -f, --fresh
              Fresh updates.  Remove symlinks in /etc/ssl/certs directory.

FILES
       /etc/ca-certificates.conf
              A configuration file.

       /etc/ssl/certs/ca-certificates.crt
              A  single-file  version  of  CA certificates.  This holds all CA
              certificates that you activated in /etc/ca-certificates.conf.

       /usr/share/ca-certificates
              Directory of CA certificates.

       /usr/local/share/ca-certificates
              Directory of local CA certificates (with .crt extension).

SEE ALSO
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