How To Use Etc Hosts Allow

Examples include popa3d imapd and sshd.

How to use etc hosts allow. If not found then go to 2 etc hosts deny. Etc hosts allow and etc hosts deny. Using the hosts allow file. The etc hosts allow and etc hosts deny files are commonly used with ssh and tcp wrappers. If not found allow access.

The etc hosts allow file lets you choose which computers can access your system. Lines in these files use the following syntax. To control hosts that are allowed or denied access to communicate with deamons on a linux server you will modify the etc hosts allow and etc hosts deny files on the server. Most of the rules and settings are used in the following form. In the file you can specify simple rules in plain text to tell your computer how to handle connections.

You can have only one rule per service in hosts allow and hosts deny file. To start create a rule allowing any computer to all services. To deny client access add its name or ip address in etc hosts deny. To allow client access add the client host name or ip address in etc hosts allow. Etc hosts allow if allow will not check 2.

The syntax of etc hosts allow is actually quite simple and easy to understand unlike say sendmail cf or the scattered nature of qmail. Service the name of the dæmon or service program that rule will be written for.