update-ca-certificates - update /etc/ssl/certs and certificates.crt
This manual page documents briefly the 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
/etc/ca-certificates/update.d and calls each hook with a list of certificates:
those added are prefixed with a +, those removed are prefixed with a -.
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
- A configuration file.
- A single-file version of CA certificates. This holds all CA
certificates that you activated in /etc/ca-certificates.conf.
- Directory of CA certificates.
- Directory of local CA certificates (with .crt
This manual page was written by Fumitoshi UKAI <firstname.lastname@example.org>, for
the Debian project (but may be used by others).