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/group | |
| /etc/gshadow | |
| /etc/hosts | configures the mapping between the specified hostnames and IP addresses, and is only available to the local system |
| /etc/inittab | |
| /etc/login.defs | |
| /etc/motd | |
| /etc/needrestart/needrestart.conf | |
| /etc/network | |
| /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 | define 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 | The configuration file /etc/ssh/sshd_config contains settings related to the OpenSSH server daemon. Learn more about this file its configuration. |
| /etc/sysctl.conf | |
| /etc/systemd/resolved.conf |
/sys
Virtual filesystem (sysfs) that allows the Linux kernel to export information kernel subsystems and hardware devices.
| File | Description |
|---|
/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
The configuration file /etc/ssh/sshd_config contains settings related to the OpenSSH server daemon. Learn more about this file its configuration.