![]() /etc/inittab - runs different programs and processes on startup.Boot file sequence in the order they are accessed or executed.(root,alice) The list of users who are members of that group.Some unixs such as HP-UX reserve other groups numbers as well. Group ids below 10 are reserved for system use. (0) The unique id assigned to the group.() The group password in a hashed form.It has four sections which going from left to right are, etc/group stores the definitive list of the users groups and their members. (/home/alice/) The home directory of the user.Normally used for personal information abou the user such as full name. (Alice Monkey) The GCOS field can be used for anything or left blank.(20) The group that the user is assigned to upon login.For example, the user id 0 is used for the root user. (134) The unique id assigned to the user.In modern systems a star indicates shadowing is in use and hence the password can be found in /etc/shadow/. It has seven sections which going from left to right are, Historically it also included passwords, however as this file needs to world readable (so all programs can use it to convert between username and user id) it is no longer considered secure to keep passwords in this file.Īlice:*:134:20:Alice Monkey:/home/alice/:/bin/ bash ![]() etc/passwd is the user authentication database, it contains a list of users and their associated internal user id numbers. /etc/rpc - RPC program number database (do not edit)./etc/protocols - list of network protocols (do not edit)./etc/mailcap - describs how mime-types should be displayed./etc/mail/ - dir of config files for mail system./etc/machine-id - unique machine id set during installation./etc/fs - config for the shadow package./etc/localtime - symbolic link to a timezone file./etc/locale.gen - lists the locales used./etc/local.d/ - scripts run by "local" init script./etc/ld.so.conf.d/ - dir for config files that include library paths./etc/kernel/ - dir for scripts such as post-installation of the Linux kernel./etc/issue - message displayed before console or ssh logins./etc/inputrc - keyboard mapping for bash and most other shells./etc/inittab - describes which processes are started at bootup./etc/init.d/ or /etc/rc.d/init.d/ - dir for init scripts./etc/hosts - associates IP addresses with hostnames./etc/nf - specifies how host names on a network are resolved./etc/gshadow - Secure group account information./etc/group - groups and the users within them./etc/gconf/ - dir for Gnome based applications./etc/fonts/ - config dir for fontconfig./etc/filesystems - defines the filesystems search order used by mount -t auto./etc/exports - file systems are exported to remote hosts./etc/environment - environment variables./etc/env.d/ - dir for environment variables in Gentoo and other distributions. ![]() ![]()
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