I will try to keep this a running list with info on each command

Tar logs/Files whatever and gzip

tar -cvzf [archivename].tar.gz [File1] [File2] ....

Mysqldump to backup a DB table

Lots of times I want to make some tweaks and be able to roll back or at least compare the two versions.

mysqldump -u [user] -p[password] [database] [tables1] [table2] ... | gzip -9 > [archivename].gz
//////notice there is no space between -p and the password
//////you can connect to a remote host for the backup
mysqldump -u [user] -p[password] -h [] -c [database] [tables1] [table2] ... | gzip -9 > [archivename].gz

SCP to securely copy files from one server to another

Rsync is probably a better alternative. Remember if you want to include hidden files end the path with a period.

//For example moving a domain
// you use option p to preserve the file permissions/owners and option r to perform a recursive copy of subdirectories
scp -pr /srv/www/funnydomain.com/public_html/.  [email protected]:/var/www/funnydomain.com/public_html/

Rsync – should have listed it the first time

Like scp or cp, but it calculates the deltas between files and only copies the parts needing updating so the bandwidth consumption is less.

rsync -zav filetocopy destination  //file can be local or remote (both sides need rsync installed - apt-get install rsync)
// z compresses, a adds a ton of options (recursion, keeping up with permissioning and symbolic links), v verbose

Resource Interpreted as Font but transferred with MIME type application/octet-stream

An annoying message but not hard to fix. Add the following lines to your .htaccess

AddType image/svg+xml .svg
AddType application/x-font-ttf .ttf
AddType application/x-font-opentype .otf
AddType application/x-font-woff .woff
AddType application/vnd.ms-fontobject .eot