NAME¶
apt-cacher-ng - caching proxy for software package downloads
SYNOPSIS¶
apt-cacher-ng [-c confdir] [-h] [optname=optvalue ...]
DESCRIPTION¶
Apt-Cacher NG is a caching proxy for software packages which are downloaded by
Unix/Linux system distribution mechanisms from mirror servers accessible via
HTTP.
OPTIONS¶
The command-line options supported by
apt-cacher-ng are:
- -c confdir
- Scan the specified configuration directory and interpret configuration
files find there.
- -h
- Short option summary
- varname=varopt
- The options from the configuration can be passed on the command line as
key=value pairs.
CONFIGURATION¶
Apt-Cacher NG is configured by a multi-config directory, i.e. the configuration
is split into many configuration files having names with suffix
.conf
and stored in a single directory. Variables can override previously configured
settings from other files, sometimes that settings are merged (depending on
the variable).
The configuration directory is typically
/etc/apt-cacher-ng but it can be
adjusted with the -C option (see systemd service file for details or wherever
the init system starts the daemon).
On Debian systems, there are at least three files installed by default:
acng.conf (containing documented examples), security.conf (containing sensible
data and only readable for special users) and zz_debconf.conf (containing
popular settings which are set by the Debian Configuration mechanism).
SIGNALS¶
Only few signals are handled in non-default ways.
SIGUSR1 closes and reopens log files.
SIGTERM and
SIGINT close log files and stop the daemon.
For more information on Apt-Cacher NG, read the User Manual which can be found
either in the doc/pdf directory of the software source package or installed in
the documentation directory of apt-cacher-ng by your distribution.