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Install libwebp

You can download webp from https://developers.google.com/speed/webp/community To install webp, run cd /usr/local/src git clone https://chromium.googlesource.com/webm/libwebp cd libwebp ./autogen.sh ./configure make make install…

Install gifsicle

You can download gifsicle from https://www.lcdf.org/gifsicle/ To install gifsicle, run cd /usr/local/src wget https://www.lcdf.org/gifsicle/gifsicle-1.92.tar.gz tar xvf gifsicle-1.92.tar.gz cd gifsicle-1.92 ./configure make make…

Install optipng

You can download optipng from http://optipng.sourceforge.net To install optipng, run cd /usr/local/src wget -O optipng-0.7.7.tar.gz http://prdownloads.sourceforge.net/optipng/optipng-0.7.7.tar.gz?download tar xvf optipng-0.7.7.tar.gz cd optipng-0.7.7/ ./configure…

Install jpegoptim

jpegoptim is an open source image optimizer for JPEG image format. https://github.com/tjko/jpegoptim You can download latest version of from https://www.kokkonen.net/tjko/projects.html To install…

Enable Logging on SFTP

To enable logging in SFTP, edit file vi /etc/ssh/sshd_config Find Subsystem sftp /usr/libexec/openssh/sft Replace wih Subsystem sftp /usr/libexec/openssh/sftp-server -l INFO Restart sshd…