How to filter by MAC address in Wireshark.
How to filter via MAC address in Wireshark.
filter
How to list all web browsers with Wireshark.
Some useful tips and tricks for using Wireshark on your network.
Interesting FFmpeg effect.
This is a very interesting emboss and sepia effect for FFmpeg. ffmpeg -i NOLm_Ambowide2_1207.mp4 -vf "curves=vintage,convolution=-2 -1 0 -1 1 1 0 1 2:-2 -1 0 -1 1 1 0 1 2:-2 -1 0 -1 1 1 0 1 2:-2 -1 0 -1 1 1 0 1 2" ambo.mp4ffmpeg -i NOLm_Ambowide2_1207.mp4 -vf "curves=vintage,convolution=-2 -1 0 … Read more
How to increase the loudness of an audio track using ffmpeg on Linux.
The FFmpeg utility on Linux is very useful for encoding to different file formats, but it can also be used to tweak audio files. The example below will increase the loudness of an audio track. ┌──[[email protected]]─[~/Music] └──╼ ╼ $ ffmpeg -i Forest_Bg_Night_01.wav -c:a libvorbis -b:8 64k -af loudnorm=I=-16:LRA=11:TP=-1.0 forest.ogg┌──[[email protected]]─[~/Music] └──╼ ╼ $ ffmpeg -i Forest_Bg_Night_01.wav … Read more
A very useful Perl coding example. How to filter swear words.
This is a very useful Perl code sample, this will filter out any bad words that are entered into the array. 1 2 3 4 5 6 7 8 9 10 11 12 my @forbidden = ("very","bad","words","go","in","this","array"); foreach my $forbidden (@forbidden) { # If a naughty word is typed… if ($comments =~ /$forbidden/) { … Read more
How to view videos on Youtube and not count as a view.
Use this code in the uBlock Origin dashboard, and this will block Youtube views code, this allows viewing a video and your visit with a browser will not count views. ||https://s.youtube.com/api/stats/* ||https://www.youtube.com/ptracking ||https://s.youtube.com/api/stats/playback ||https://www.youtube.com/api/stats/watchtime||https://s.youtube.com/api/stats/* ||https://www.youtube.com/ptracking ||https://s.youtube.com/api/stats/playback ||https://www.youtube.com/api/stats/watchtime This could be very useful for any Youtube user who does not care for adding views to videos. … Read more
Remove a logo from a video easily with ffmpeg.
It is very easy with ffmpeg to remove a logo from a video. This is done with the delogo filter. Below is an example. Here I am using the delogo filter. This is the x and y locations of the logo and the width and height: “delogo=x=483:y=25:w=298:h=77”. ┌─[jason@jason-desktop]─[~/Videos] └──╼ $ffmpeg -i input.mp4 -vf "delogo=x=483:y=25:w=298:h=77" -c:a … Read more
Very good interface font that can automatically filter racist words.
There is a very good font out now, this can filter racist words automatically. This can be used as an interface font with your Gnome or MATE desktop or with your browser, and triggering words will be automatically filtered by the font. This is amazing. It could be used on a website, it works fine … Read more
Print only certain columns of output from the ps command on Linux.
The ps command on Linux is very useful for listing running processes. It is possible to list only certain running processes. And also certain columns of text from the output. This could be very useful for a script. This example below shows how to only print the PID, the percentage of CPU and the command … Read more
Trim multiple spaces with sed into a normal string.
To trim multiple spaces from a sentence and turn it back into properly readable text, use this sed syntax. sed ‘s/ \+/ /g’sed ‘s/ \+/ /g’ This is an example. echo "Hello, this sentence has multiple spaces in it and needs fixing." Hello, this sentence has multiple spaces in it and needs fixing.echo "Hello, this … Read more
Use nftables on your Linux machine to add more security.
The nftables firewall is a good alternative to iptables. This has better performance than the old iptables system. To install this on Ubuntu 18.04, run this command. 4.4 Thu Sep 12 jason@Yog-Sothoth 0: $ sudo apt install nftables4.4 Thu Sep 12 jason@Yog-Sothoth 0: $ sudo apt install nftables Edit the /etc/nftables.conf file to remove the … Read more
Wireshark is very useful for getting many types of information.
Using Wireshark to get information about the servers visited and traffic on your network is not as much fun as it used to be, but you can still get quite a bit of info even with an SSL connection. It is possible to get the name of visited websites even though they are using SSL. … Read more
How to list files with ls that start with letters in the filename and then have numbers.
This is how to list some filenames that start with letters and have some numbers in the filenames. This is a very useful Linux trick. jason@Yog-Sothoth » ~ » $ ls -l [A-Z]*[0-9]*.wav -rw-rw-r– 1 jason jason 4399528 Oct 25 2017 gqrx_20171024_232212_33050000.wav -rw-rw-r– 1 jason jason 2378004 Oct 29 2017 gqrx_20171029_001507_126954900.wav -rw-rw-r– 1 jason jason … Read more
Iptables samples. Very good ways to filter network traffic.
Sample Iptables configurations A sample iptables output that I am using on an OpenVPN server to allow Internet traffic to be passed through it. ubuntu ~ $ sudo iptables-save # Generated by iptables-save v1.4.21 on Wed Aug 2 22:19:48 2017 *filter :INPUT ACCEPT [2654934:1228315333] :FORWARD ACCEPT [31023:17433690] :OUTPUT ACCEPT [2475842:555885003] COMMIT # Completed on Wed … Read more
Filter for a specific time frame in Wireshark.
How to filter for a time frame in Wireshark.
Internet Censorship bill.
The Internet Censorship bill will restrict access to many websites on the Internet and restrict Internet freedom in the name of protecting copyrighted material from theft, at least that is what they are saying, but it will have many far-reaching effects that will compromise freedom of speech and the enjoyment you get out of using … Read more