Miscellaneous

Delete remote branch

git branch -d BRANCHNAME

git push origin --delete BRANCHNAME

IP address classes and private IP addresses

IP address classes

Class First octet decimal range
Class A 1 to 126
Class B 128 to 191
Class C 192 to 223

Private IP addresses

Class Address Range
A 10.0.0.0 to 10.255.255.255
B 172.16.0.0 to 172.31.255.255
C 192.168.0.0 to 192.168.255.255

The most common HTTP status codes

The HTTP GET command is used to request web pages from a server. The server responds with the requested document, preceded by a header. T​his header contains a status code, which is a 3 digit number which describes the request status.

An example of the first piece of the HTTP header when the browser uses the GET command to request Dribbit.eu is shown.

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