Technical data

3. Base configuration
Table 3.2.: Automtically generated maximum number of simultaneous connections
RAM in MiB simultaneous connections
16 1024
24 1280
32 2048
64 4096
128 8192
or
ip_conntrack: Maximum limit of XXX entries exceeded
The variable IP_CONNTRACK_MAX changes the maximum number of simultaneously existing
connections to a fixed value. Each possible connection consumes 350 bytes of RAM,
which cannot be used for other things. If you e.g. choose the value ’10000’, you reserve
about 3,34 MB RAM that are lost for any other usage (kernel, RAM disks, programs).
If your router has 32 MiB RAM, it should not be much of a problem to reserve 2 or 3
MiB for the ip_conntrack table. If only 16 MiB RAM or less are available you should
be more conservative to prevent your router from running out of RAM.
The setting currently being used can be display on the console by executing
cat /proc/sys/net/ipv4/ip_conntrack_max
and can be set on-the-fly by executing
echo "XXX" > /proc/sys/net/ipv4/ip_conntrack_max
where XXX denotes the number of entries. The entries of the IP_CONNTRACK table can be
displayed on the console by executing
cat /proc/net/ip_conntrack
and can be counted by executing
cat /proc/net/ip_conntrack | grep -c use
LOCALE Default setting: LOCALE=’de’
Meanwhile, some fli4l components support multiple languages, for example the console
menu and the Web GUI. This variable lets you choose your preferred language. In
addition, some components support a private setting to override this global setting if
necessary. English is used as a fallback if the language chosen is not supported for some
component.
KEYBOARD_LOCALE=’auto’ tries to find a keyboard layout that is compatible with the LOCALE
setting.
By now, the following values are possible: de, en, fr.
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