%general-entities; ]> $LastChangedBy$ $Date$ Fcron The Fcron package contains a periodical command scheduler which aims at replacing Vixie Cron. &lfs84_checked; Package Information Download (HTTP): Download (FTP): Download MD5 sum: &fcron-md5sum; Download size: &fcron-size; Estimated disk space required: &fcron-buildsize; Estimated build time: &fcron-time; Fcron Dependencies Optional An , text editor (default is vi from the package), , and User Notes: Fcron uses the cron facility of syslog to log all messages. Since LFS does not set up this facility in /etc/syslog.conf, it needs to be done prior to installing Fcron. This command will append the necessary line to the current /etc/syslog.conf (perform as the root user): /etc/syslog.conf cat >> /etc/syslog.conf << "EOF" # Begin fcron addition to /etc/syslog.conf cron.* -/var/log/cron.log # End fcron addition EOF The configuration file has been modified, so reloading the sysklogd daemon will activate the changes (again as the root user). /etc/rc.d/init.d/sysklogd reload For security reasons, an unprivileged user and group for Fcron should be created (perform as the root user): groupadd -g 22 fcron && useradd -d /dev/null -c "Fcron User" -g fcron -s /bin/false -u 22 fcron Install Fcron by running the following commands: ./configure --prefix=/usr \ --sysconfdir=/etc \ --localstatedir=/var \ --without-sendmail \ --with-boot-install=no \ --with-systemdsystemunitdir=no && make ./configure --prefix=/usr \ --sysconfdir=/etc \ --localstatedir=/var \ --without-sendmail \ --with-boot-install=no && make This package does not come with a test suite. Now, as the root user: make install DESTDIR install must be done as root user. --without-sendmail: By default, Fcron will attempt to use the sendmail command from an package to email you the results of the fcron script. This switch is used to disable default email notification. Omit the switch to enable the default. Alternatively, you can use the --with-sendmail=</path/to/MTA command> to use a different mailer command. --with-boot-install=no: This prevents installation of the bootscript included with the package. --with-systemdsystemunitdir=no: This prevents building the systemd units, which are not needed for a SYS V system. --with-editor=</path/to/editor>: This switch allows you to set the default text editor. --with-dsssl-dir=</path/to/dsssl-stylesheets>: May be used if you have installed. Currently, the dsssl stylesheets are located at /usr/share/sgml/docbook/dsssl-stylesheets-1.79. /etc/fcron.conf, /etc/fcron.allow, and /etc/fcron.deny /etc/fcron.conf /etc/fcron.allow /etc/fcron.deny There are no required changes in any of the config files. Configuration information can be found in the man page for fcron.conf. fcron scripts are written using fcrontab. Refer to the fcrontab man page for proper parameters to address your situation. If Linux-PAM is installed, two PAM configuration files are installed in /etc/pam.d. Alternatively if /etc/pam.d is not used, the installation will append two configuration sections to the existing /etc/pam.conf file. You should ensure the files match your preferences. Modify them as required to suit your needs. /etc/pam.d/* /etc/pam.conf Periodic Jobs If you would like to setup a periodic hierarchy for the root user, first issue the following commands (as the root user to create the /usr/bin/run-parts script: cat > /usr/bin/run-parts << "EOF" && #!/bin/sh # run-parts: Runs all the scripts found in a directory. # from Slackware, by Patrick J. Volkerding with ideas borrowed # from the Red Hat and Debian versions of this utility. # keep going when something fails set +e if [ $# -lt 1 ]; then echo "Usage: run-parts <directory>" exit 1 fi if [ ! -d $1 ]; then echo "Not a directory: $1" echo "Usage: run-parts <directory>" exit 1 fi # There are several types of files that we would like to # ignore automatically, as they are likely to be backups # of other scripts: IGNORE_SUFFIXES="~ ^ , .bak .new .rpmsave .rpmorig .rpmnew .swp" # Main loop: for SCRIPT in $1/* ; do # If this is not a regular file, skip it: if [ ! -f $SCRIPT ]; then continue fi # Determine if this file should be skipped by suffix: SKIP=false for SUFFIX in $IGNORE_SUFFIXES ; do if [ ! "$(basename $SCRIPT $SUFFIX)" = "$(basename $SCRIPT)" ]; then SKIP=true break fi done if [ "$SKIP" = "true" ]; then continue fi # If we've made it this far, then run the script if it's executable: if [ -x $SCRIPT ]; then $SCRIPT || echo "$SCRIPT failed." fi done exit 0 EOF chmod -v 755 /usr/bin/run-parts Next, create the directory layout for the periodic jobs (again as the root user): install -vdm754 /etc/cron.{hourly,daily,weekly,monthly} Finally, add the run-parts to the system fcrontab (while still the root user): cat > /var/spool/fcron/systab.orig << "EOF" &bootrun 01 * * * * root run-parts /etc/cron.hourly &bootrun 02 4 * * * root run-parts /etc/cron.daily &bootrun 22 4 * * 0 root run-parts /etc/cron.weekly &bootrun 42 4 1 * * root run-parts /etc/cron.monthly EOF Install the /etc/rc.d/init.d/fcron init script from the package. Enable fcron to start at boot using the previously installed systemd unit. fcron make install-fcron systemctl enable fcron Finally, again as the root user, start fcron and generate the /var/spool/fcron/systab file: /etc/rc.d/init.d/fcron start && fcrontab -z -u systab systemctl start fcron && fcrontab -z -u systab Installed Programs Installed Libraries Installed Directories fcron, fcrondyn, fcronsighup, and fcrontab None /usr/share/doc/fcron-&fcron-version; and /var/spool/fcron Short Descriptions fcron is the scheduling daemon. fcron fcrondyn is a user tool intended to interact with a running fcron daemon. fcrondyn fcronsighup instructs fcron to reread the Fcron tables. fcronsighup fcrontab is a program used to install, edit, list and remove the tables used by fcron. fcrontab