IpFire

http://wiki.ipfire.org/de/addons/net-snmp/start - SNMP Daemon for IpFire

Edit Cron jobs on IpFire
fcrontab -e
/etc/init.d/fcron restart

# force update dyndns every day
#9 2 * * 0 [ -f "/var/ipfire/red/active" ] && /usr/local/bin/setddns.pl -f
0 19 * * * [ -f "/var/ipfire/red/active" ] && /usr/local/bin/setddns.pl -f

Upgrade
pakfire update
pakfire upgrade

Install Addons
pakfire install -y iftop

Update XEN VM
mount /dev/vg1/fw-boot /mnt/

# add XEN boot entry in GRUB configuration
cat > /mnt/boot/grub/grub.conf
title IPFire (legacy XEN-Kernel 2.6.32.61)
kernel /vmlinuz-2.6.32.61-ipfire-xen root=UUID=2b205431-3429-45eb-a023-5d3b0cf55ddd panic=10 console=xvc0 ro
initrd /ipfirerd-2.6.32.61-xen.img
EOF

# copy kernel and initrd
cp /media/backup/daily.0/fw/boot/*2.6.32.61* /mnt/
umount /mnt/

# copy kernel modules
mount /dev/vg1/fw-root /mnt/
cp -a /media/backup/daily.0/fw/lib/modules/2.6.32.61-ipfire-xen/ /mnt/lib/modules/
umount /mnt/

# start vm
xm create -c fw

Update to beta
sed -i 's/2.13/2.15/g' /opt/pakfire/etc/pakfire.conf
pakfire update --force
pakfire upgrade

Links
http://wiki.ipfire.org/de/addons/start