If you are managing FreeBSD or any Linux servers , you might have used the tcpdump a number of times . It’s a very handy tool for Network engineers or System administrators for troubleshooting . Sometimes you need to run it over day/night , capture the file and then analyze it in Wireshark ....
I have cloned my FreeBSD 16GB SSD to a 28GB SSD . So everything works fine from the new SSD but I am unable to use the extra storage I had added . Another popular scenario of resizing the partition is adding extra storage to your virtual machines or SAN devices .In either case...
Once the USB disk is connected , you can run the geom command to list all the available disk. In my case ada0 is my internal ssd , da0 is a card reader and da1 is the external USB disk . If you want to see more details about the disks including its sub...
Prerequsites : Install OpenVPN client packages Now create openvpn folder in /usr/local/etc/ . I always create seperate folders for client and server . So I can use it if I need to run both server and client from a same device . Now you can copy a sample client config to this location ,...
If your hardware has multiple CPUs, you can set CPU affinity to run certain processes on specific cores. In FreeBSD, the cpuset command is used for this purpose. I have a test server on AWS with two CPU cores. First, let’s verify the hardware by running the following command: So you can see I...
pip is a package manager in Python which you need to install various modules for Python . Here , we see how to install Pip on a FreeBSD 12.1 server . Release : 12.1-RELEASE-p10 Python : Python 3.7.9 So the command is : Tu upgrade pip to the latest : So now the pip...
If you are playing with the file systems in FreeBSD , you might encounter this error: So ada0 is my drive here and I am getting the corrupt error after making some changes with my zfs file systems , this can be easily recovered by uisng the gpart recovery tool by using the command...
Sometimes, you may need to see the download speed on your FreeBSD server . The fetch command with /dev/null is an easy way to see this . The /dev/null is a null interface which is blackhole in unix based operating systems . It won’t save anything instead it redirects everything to null. So the...
You can enable the logging in pflog You can verify your pflogd service running : But this log file is binary and you won’t be able to tail it with the ‘clog’ utility in FreeBSD . To clog this file you need to use the tcpdump: You can thhen filter this with your host...
To add a static route via a specific interface: where re1 is my wan interface and destinationip is your remote IP . You can do an ‘ifconfig’ to see your network interfaces To delete the host: To add a default route to allow all traffic: where 192.168.1.1 is the default gateway To show all...