How To Use Etc In Linux
Historically the etc passwd file used to store all login information in a standalone linux system.
How to use etc in linux. Etc at deny keep users in this file to deny at jobs execution. This file is used by the man db package to configure the man and cat paths. Configuring etckeeper in linux once you have installed etckeeper as shown above you need to configure how it will operate and its main configuration file is etc etckeeper etckeeper conf. Later due to following reasons password information was moved in etc shadow file. These are the files which contain what users are allowed denied for particular service what ip address are allowed denied to access our services etc.
To safely edit etc group file run. Since there is only one field besides encrypted password other password related information cannot be stored in this file. Etc at allow keep users in this file to allow at jobs execution. This allows you to use linux with ms dos formatted diskettes on dos and windows systems. The mtools series of commands work with ms dos files and directories on floppy disks.
Etc services file contains a list of network services and ports mapped to them. Now vipw and vigr commands will lock the etc passwd and etc group files and prevent others users from making any changes. To open it for editing use any of your favorite text based editors as shown. 192 168 56 1 ubuntu tecmint lan 192 168 56 10 centos tecmint lan. Vim etc etckeeper etckeeper conf or sudo nano etc etckeeper etckeeper conf.
Internet daemon is an important service in the linux world. Run sudo vipw in one window and try to change the password of an user in another window. It takes care of all network services with the help of etc services file. In this article we will walk you through the content format of this file and what it means to a linux system. Debian default mtools configuration file.
Deny allow files in etc folder. Now open the etc hosts file using your editor of choice as follows sudo vi etc hosts then add the lines below to the end of the file as shown in the screen shot below.