Technical data

4. Packages

SYSLOGD_ROTATE_DIR The optional variable SYSLOGD_ROTATE_DIR lets you specify the

directory where the archived Syslog ﬁles should be stored. Leave it empty to use the

default directory /var/log.

SYSLOGD_ROTATE_MAX The optional variable SYSLOGD_ROTATE_MAX lets you specify the

number of archived/rotated Syslog ﬁles.

SYSLOGD_ROTATE_AT_SHUTDOWN With the optional variable SYSLOGD_ROTATE_AT_SHUTDOWN

you can disable the rotate of syslog ﬁles at shutdown. Please only do this, if your sys-

logﬁles are written directly to a destination on a permanent disk.

4.1.2. OPT_KLOGD – Logging kernel messages

Many errors, e.g. a dial-in that failed, are written directly to the console by the Linux kernel.

If you set OPT_KLOGD=’yes’, these messages are redirected to the Syslog daemon which can log

them to a ﬁle or send them to a log host (see above). This keeps your ﬂi4l console (almost)

clear.

Recommendation: If you use OPT_SYSLOGD=’yes’ you should also set OPT_KLOGD to ‘yes’.

Default setting: OPT_KLOGD=’no’

4.1.3. OPT_LOGIP – Logging WAN IP addresses

LOGIP logs your WAN IP address to a log ﬁle. You activate this logging by setting OPT_LOGIP

to ‘yes’.

Default setting: OPT_LOGIP=’no’

LOGIP_LOGDIR – Conﬁgure directory of log ﬁle

The variable LOGIP_LOGDIR contains the directory where the log ﬁle should be created or

’auto’ for autodetect.

Default setting: LOGIP_LOGDIR=’auto’

4.1.4. OPT_Y2K – Date correction for systems that are not Y2K-safe

ﬂi4l routers are often assembled from old hardware parts. Older mainboards may have a BIOS

that is not Y2K-safe. This can lead to the situation that setting the system date to the 27th

May 2000 causes the BIOS date to become the 27th May 2094 after a reboot. By the way,

Linux will then show the 27th May 1994 as system date.

Normally the system date reﬂected by ﬂi4l is not important and should not matter at all.

If you use the LCR (Least Cost Routing) functionality of your ﬂi4l router this may very well

play a role.

The reason: The 27th May 1994 was a Friday, the 27th May 2000 in contrast was a Saturday.

And for the weekend there are lower-priced rates or providers, respectively . . .

A ﬁrst solution to that problem is as follows: The BIOS date is changed from the 27th May

2000 to the 28th May 1994 which was a Saturday, too. However, the problem is not solved

completely yet: Not only does ﬂi4l use the day of week and the current time for least-cost

routing but it also respects bank holidays.