Below is a sample configuration file for the zebra daemon.
! ! Zebra configuration file ! hostname Router password zebra enable password zebra ! log stdout ! !
'!' and '#' are comment characters. If the first character of the word is one of the comment characters then from the rest of the line forward will be ignored as a comment.
If a comment character is not the first character of the word, it's a normal character. So in the above example '!' will not be regarded as a comment and the password is set to 'zebra!password'.