Just a quick tip on how to display MAC addresses in the TCPdump utility. Simply use the “-e” switch. tcpdump -i INTERFACENAME -e Without the -e switch: [CheckPoint]# tcpdump -i bond2.100 -n 12:28:42.257902 IP 10.20.20.31.49155 > 10.254.25.116.49929: . ack 1831 win 513 12:28:42.258620 IP 10.20.20.31.49155 > 10.254.25.116.49929: P 1:286(285) ack 1831 win 513 With the […]
If you issue the top or free command, you may be spooked and lead to believe you are out of memory and you start digging about checking the processes memory usage without getting any wiser. The reason being you and Linux using different terminology with regards to free memory, which I will try to explain […]
This is a guide on how to increase your disk size on a Check Point Gaia Security Management node. Extending disk size is not supported by Check Point as far as I have gathered, so use the following guide at own risk – and as always; keep a fresh backup of your system. =) So […]
You may experience issues like a Check Point installation not being responsive (processes not started, etc.) and your dmesg, messages, $FWDIR/log/fwd.elg and fwm.elg may be filled with all sorts of error messages indicating the lack of files or not being able to create files. In general it behaves in such a way you’ll think “I […]
If you have a Linux syslog-server, which you have not bothered to make a front end for, you may find it useful to grep through several files at once. I am sure there is plentiful of other scenarios this applies as well, so here goes. =) You can grep an entire directory and its files […]