Files
On Linux systems almost everything is a file. This page consists of a collection of any files that is referenced within the articles.
/bin
One of primary locations on Linux is /bin and contains very common system administration utilities.
| File | Description |
|---|---|
| /bin/ls |
/dev
Device files are stored in /dev and interact with the kernel.
| File | Description |
|---|---|
| /dev/random | provides random data from the Linux kernel random number generator. |
| /dev/urandom | provides random data like /dev/random data. It is the preferred source to retrieve such data from the Linux kernel random number generator. |
/etc
The directory that contains configuration files is /etc.
| File | Description |
|---|---|
| /etc/audit/audit.conf | |
| /etc/audit/audit.rules | |
| /etc/crontab | |
| /etc/fstab | |
| /etc/group | |
| /etc/gshadow | |
| /etc/hostname | |
| /etc/hosts | configures the mapping between the specified hostnames and IP addresses, and is only available to the local system |
| /etc/lighttpd/lighttpd.conf | |
| /etc/login.defs | |
| /etc/motd | |
| /etc/needrestart/needrestart.conf | |
| /etc/network | |
| /etc/network/interfaces | |
| /etc/nsswitch.conf | configures the name service switch functionality to Linux knows how to lookup entries such as services, users, domain name resolution, and protocols. |
| /etc/pam.d/common-password | |
| /etc/pam.d/common-session | |
| /etc/pam.d/system-auth | |
| /etc/passwd | |
| /etc/profile | |
| /etc/resolv.conf | Defines DNS resolvers |
| /etc/resolvconf.conf | |
| /etc/security/limits.conf | |
| /etc/security/pwquality.conf | |
| /etc/security/pwsecurity.conf | |
| /etc/shadow | |
| /etc/ssh_config | |
| /etc/ssh/ssh_config | The configuration file /etc/ssh/ssh_config contains settings related to the OpenSSH client. Learn more about this file its configuration. |
| /etc/ssh/sshd_config | Main configuration file for the OpenSSH daemon |
| /etc/sysconfig/network | |
| /etc/sysctl.conf | |
| /etc/systemd/resolved.conf |
/proc
The /proc virtual filesystem (procfs) provides a way to configure the Linux kernel or share information.
| File | Description |
|---|---|
| /proc/cpuinfo | |
| /proc/net/netstat | |
| /proc/net/sctp/snmp | |
| /proc/net/snmp | |
| /proc/net/snmp6 | |
| /proc/uptime |
Articles for Files
The /dev/random file is a special character file on Linux that provides random data from the Linux kernel random number generator.
The /etc/resolv.conf file is usually a regular file or a symbolic link to a regular file, defining which servers are used for DNS requests.
The configuration file /etc/ssh/ssh_config contains settings related to the OpenSSH client. Learn more about this file its configuration.
The configuration file /etc/ssh/sshd_config contains settings related to the OpenSSH server daemon. Learn more about this file its configuration.