Synology Virtual Machine Manager Snapshot How-to

In this video, I demonstrate the usage of snapshots in Synology’s Virtual Machine Manager.

Synology Playlist: https://www.youtube.com/playlist?list=PLErU2HjQZ_ZPL8Yx7FxnY6xKxcMiVWkkJ

Synology DS918+ (Amazon Affiliate)
US: https://amzn.to/2EECW3Q
UK: https://amzn.to/35BD9jW
CA: https://amzn.to/35ILfYs
DE: https://amzn.to/2VsP561
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FR: https://amzn.to/2VqZHCo
IT: https://amzn.to/2XEQC8T
IN: https://amzn.to/2Th9pom

(x4) WD RED WD40EFRX CMR* (Amazon Affiliate)
US: https://amzn.to/3ewSHvC
UK: https://amzn.to/354lcOk
CA: https://amzn.to/3l5syGK
DE: https://amzn.to/2IfafjF
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FR: https://amzn.to/35178VF
IT: https://amzn.to/32fNx28
IN: https://amzn.to/3l5X6bh
AU: https://amzn.to/2JCUyn7

* Please verify that you have chosen the WD40EFRX (CMR) model when ordering. Also check that you got the correct drives when your order arrives. Avoid the WD40EFAX SMR models!

Crucial 16GB (8GBx2) RAM CT2K8G3S186DM (Amazon Affiliate)
US: https://amzn.to/35TmsB1
UK: https://amzn.to/35Pvsa5
CA: https://amzn.to/2thVWUy
ES: https://amzn.to/2VgoecJ
FR: https://amzn.to/2NoBZSv
IT: https://amzn.to/2VgwIkb
DE: https://amzn.to/3avuVwe (HX318LS11IB/8)
IN: https://amzn.to/37Y1Fgz
AU: https://amzn.to/2CGypRH

Using advpng (AdvanceCOMP) to Losslessly Compress PNG files (on Mac using Macports)

In this video I install advpng (from AdvanceCOMP) and show how to use it to recompress a bunch of png files.

Installing MacPorts on a Mac: https://youtu.be/N22Ic6ZRPXI

Install advancecomp (using Macports)
sudo port install macports
View Size of Current Directory
du -sh
Find png Files in Directory (recursively)
find ./ -iname '*.png'
Count Files
find ./ -iname '*.png' | wc -l
Batch Optimize png Files
find ./ -iname '*.png' -exec advpng -z4 {} \;

Using jpegoptim to Losslessly Compress JPEG files (on Mac using Macports)

In this video I install jpegoptim and show how to use it to recompress a bunch of jpeg files.

Installing MacPorts on a Mac: https://youtu.be/N22Ic6ZRPXI

Install jpegoptim (using Macports)
sudo port install jpegoptim
View jpegoptim Help
jpegoptim --help
View Size of Directory
du -sh
Find Jpeg Files (recursively)
find ./ -iname '*.jpg'
Optimize Jpeg Files (recursively)
find ./ -iname '*.jpg' -exec jpegoptim -p {} \;
Optimize Single Jpeg
jpegoptim -p photo.jpg
Optimize Jpegs in Single Directory
jpegoptim -o *.jpg

iPhone/iPad/iOS iPerf3 (Network Speed Test Software) Install and Demonstration

In this video, I install iperf3 network speed testing software on an iPad. The procedure is the same for iPhone.

iPerf3 software: https://itunes.apple.com/fr/app/he.net-network-tools/id858241710

iPerf Playlist: https://www.youtube.com/playlist?list=PLErU2HjQZ_ZNBUQCqkstfe7_zAdt7b1_k