Eddie's Tech Notes

YoutubeDLG: for downloading HD video from youtube. Avidemux Open the software. Drag the movie to the software window. In video output, choose "Mega AVC (h.264). In Audio output, choose "AAC (lav)". In the slide, use the slider and the "A" and "B" icon to select the segment that you want. Click on the Floppy disk button to save the segment. If you need to crop your video, select from the main menu, Video -> Filters -> Crop.

iptables -L lists all rules  iptables -S [chain] shows the commands that build the rules of the chain. iptables -D [rule index or rule details] deletes a particular chain. NAT iptables -L -t nat lists all NAT rules. Replace source private IP to a public one, then when reply comes back, replace the associated destination public IP back to the private one. iptables -t nat -A POSTROUTING -s 192.168.128.4 -j SNAT --to-source 10.247.65.43 iptables -t nat -A PREROUTNG -d 10.247.65.43/32 -j DNAT --to-destination 192.168.128.4 Replacing rules iptables -R INPUT 1 -p tcp -s 192.168.0.0/24 --dport 80 -j ACCEPT Save modified iptables service iptables save Reference Reference 2