Posts by Tag

• RHEL7 92
• RHCSA 43
• RHCE 24
• SYS 22
• Ubuntu 11
• Security 6
• YUM 6
• Apache 6
• SELINUX 6
• SSH 5
• MariaDB 4
• CentOS 3
• Kerberos 3
• Network 3
• Javascript 3
• PuTTY 2
• Delta-rpms 2
• BIND 2
• POSTFIX 2
• NFS 2
• KVM 2
• DOCKER 2
• PowerShell 1
• PHP7 1
• FileZilla 1
• FTP 1
• SFTP 1
• VPN 1
• Wi-Fi 1
• Sudores 1
• Vim 1
• Tutorials 1
• UFW 1
• Firewall 1
• Systemd 1
• EPEL 1
• RPM 1
• MAIL 1
• iSCSI 1
• DNS 1
• LDAP 1
• Firewalld 1
• SMB 1
• VLAN 1
• I/O 1
• Etherpad 1
• MediaWiki 1
• MongoDB 1
• Node.js 1
• JAVA 1

RHEL7

RHEL7: How to set up an environment variable.

1 minute read

RHEL7: How to install a Wekan service.

2 minute read

RHEL7: How to install a NodeJS service.

2 minute read

RHEL7: How to install a MongoDB service.

8 minute read

RHEL7: How to install the Meteor framework.

2 minute read

RHEL7: How to install a Mediawiki service.

2 minute read

RHEL7: How to install an Etherpad service.

2 minute read

RHEL7: How to configure I/O schedulers.

1 minute read

RHEL7: How to install Cockpit.

2 minute read

RHEL7: How to get started with Atomic Host.

5 minute read

RHEL7: How to configure vlans.

3 minute read

RHEL7: How to deal with KVM certificate expiration.

3 minute read

RHEL7: Configure a physical machine to host virtual guests.

1 minute read

SYS: Start and stop virtual machines.

less than 1 minute read

SYS: Install and update software packages from Red Hat Network, a remote repository, or from the local file system.

less than 1 minute read

SYS: Create and remove physical volumes, assign physical volumes to volume groups, and create and delete logical volumes

3 minute read

SYS: Create and manage Access Control Lists (ACLs).

1 minute read

SYS: Identify CPU/memory intensive processes, adjust process priority with renice, and kill processes

less than 1 minute read

SYS: Create hard and soft links

less than 1 minute read

SYS: Create and edit text files

less than 1 minute read

SYS: Create, delete, and modify local user accounts

less than 1 minute read

SYS: Create, delete, and modify local groups and group memberships

less than 1 minute read

SYS: Configure systems to mount file systems at boot by Universally Unique ID (UUID) or label

1 minute read

SYS: Configure systems to launch virtual machines at boot

less than 1 minute read

SYS: Create and configure set-GID directories for collaboration

1 minute read

SYS: Change passwords and adjust password aging for local user accounts

less than 1 minute read

SYS: Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2

less than 1 minute read

SYS: Add new partitions and logical volumes, and swap to a system non-destructively

1 minute read

SELINUX: Use boolean settings to modify system SELinux settings

3 minute read

SELINUX: Set enforcing and permissive modes for SELinux

1 minute read

SELINUX: Restore default file contexts.

less than 1 minute read

SELINUX: List and identify SELinux file and process context

less than 1 minute read

SELINUX: Diagnose and address routine SELinux policy violations

1 minute read

RHEL7: Create, mount, unmount, and use vfat, ext4 and xfs file systems

5 minute read

RHEL7: Use SELinux port labelling to allow services to use non-standard ports.

2 minute read

RHEL7: Use Kerberos to control access to NFS network shares.

5 minute read

RHEL7: Update the kernel package appropriately to ensure a bootable system

less than 1 minute read

RHEL7: Start, stop, and check the status of network services.

1 minute read

RHEL7: How to set up the NTP service

7 minute read

RHEL7: Securely transfer files between systems

1 minute read

RHEL7: Provide SMB network shares to specific clients.

2 minute read

RHEL7: Provide NFS network shares suitable for group collaboration.

1 minute read

RHEL7: Provide NFS network shares to specific clients.

3 minute read

RHEL7: Produce and deliver reports on system utilization (processor, memory, disk, and network).

less than 1 minute read

RHEL7: Perform simple SQL queries against a database.

2 minute read

RHEL7: Mount and unmount CIFS and NFS network file systems

1 minute read

RHEL7: Locate, read, and use system documentation including man, info, and files in /usr/share/doc.

2 minute read

RHEL7: Interrupt the boot process in order to gain access to a system.

2 minute read

RHEL7: Locate and interpret system log files and journals

2 minute read

RHEL7: Install Red Hat Enterprise Linux systems as virtual guests

1 minute read

RHEL7: How to install a MariaDB/MySql service.

6 minute read

RHEL7: How to install an Apache service.

1 minute read

RHEL7: How to get started with GRUB2

4 minute read

RHEL7: How to get started with Firewalld

14 minute read

RHEL7: Extend existing unencrypted logical volumes

4 minute read

RHEL7: Deploy an Apache basic CGI application.

1 minute read

RHEL7: Create a simple database schema.

3 minute read

RHEL7: List, create, delete partitions on MBR and GPT disks

7 minute read

RHEL7: Configure systems to boot into a specific target automatically

less than 1 minute read

RHEL7: Configure a system to use an existing LDAP directory service for user and group information

1 minute read

RHEL7: Configure a system to forward all email to a central mail server.

4 minute read

RHEL7: Configure a system to authenticate using Kerberos.

2 minute read

RHEL7: Configure SSH key-based authentication

2 minute read

RHEL7: Configure a master name server.

4 minute read

RHEL7: Configure a system as either an iSCSI target or initiator that persistently mounts an iSCSI target.

8 minute read

RHEL7: Configure IPv4 addresses and perform basic IPv4 troubleshooting

9 minute read

RHEL7: Configure a central mail server.

2 minute read

RHEL7: Configure a caching-only name server.

less than 1 minute read

RHEL7: Configure an Apache virtual host.

1 minute read

RHEL7: Configure Apache TLS security.

4 minute read

RHEL7: Configure Apache access restrictions on directories.

1 minute read

RHEL7: Configure Apache group-managed content.

less than 1 minute read

RHEL7: Configure aggregated network links between two RHEL systems.

less than 1 minute read

RHEL7: Configure additional SSH options described in documentation.

2 minute read

RHEL7: Boot systems into different targets manually

1 minute read

RHEL7: Boot, reboot, and shut down a system normally.

less than 1 minute read

RHEL7: Backup and restore a MariaDB database.

2 minute read

RHEL7: Access a virtual machine’s console

2 minute read

SYS: Manage repositories.

less than 1 minute read

SYS: Learn to use the yum command.

1 minute read

SYS: Learn to use the rpm command.

1 minute read

SYS: Configure a remote repository.

less than 1 minute read

SYS: Configure a local repository.

less than 1 minute read

RHEL7: Use yum transaction history.

6 minute read

RHEL7: How to install the EPEL repository.

less than 1 minute read

RHEL7: How to get started with Systemd.

17 minute read

RHEL7: How to get started with package groups.

3 minute read

RHEL7: How to get started with delta rpms.

3 minute read

RHEL7: How to get started with CGroups.

8 minute read

RHEL7: Configure network teaming between two RHEL systems.

3 minute read

RHEL7: Configure network bonding between two RHEL systems.

3 minute read

RHEL7: Configure a Kerberos KDC.

4 minute read

Back to top ↑

RHCSA

RHEL7: How to deal with KVM certificate expiration.

3 minute read

RHEL7: Configure a physical machine to host virtual guests.

1 minute read

SYS: Start and stop virtual machines.

less than 1 minute read

SYS: Install and update software packages from Red Hat Network, a remote repository, or from the local file system.

less than 1 minute read

SYS: Create and remove physical volumes, assign physical volumes to volume groups, and create and delete logical volumes

3 minute read

SYS: Create and manage Access Control Lists (ACLs).

1 minute read

SYS: Identify CPU/memory intensive processes, adjust process priority with renice, and kill processes

less than 1 minute read

SYS: Create hard and soft links

less than 1 minute read

SYS: Create and edit text files

less than 1 minute read

SYS: Create, delete, and modify local user accounts

less than 1 minute read

SYS: Create, delete, and modify local groups and group memberships

less than 1 minute read

SYS: Configure systems to mount file systems at boot by Universally Unique ID (UUID) or label

1 minute read

SYS: Configure systems to launch virtual machines at boot

less than 1 minute read

SYS: Create and configure set-GID directories for collaboration

1 minute read

SYS: Change passwords and adjust password aging for local user accounts

less than 1 minute read

SYS: Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2

less than 1 minute read

SYS: Add new partitions and logical volumes, and swap to a system non-destructively

1 minute read

SELINUX: Use boolean settings to modify system SELinux settings

3 minute read

SELINUX: Set enforcing and permissive modes for SELinux

1 minute read

SELINUX: Restore default file contexts.

less than 1 minute read

SELINUX: List and identify SELinux file and process context

less than 1 minute read

SELINUX: Diagnose and address routine SELinux policy violations

1 minute read

RHEL7: Create, mount, unmount, and use vfat, ext4 and xfs file systems

5 minute read

RHEL7: Update the kernel package appropriately to ensure a bootable system

less than 1 minute read

RHEL7: Start, stop, and check the status of network services.

1 minute read

RHEL7: How to set up the NTP service

7 minute read

RHEL7: Securely transfer files between systems

1 minute read

RHEL7: Mount and unmount CIFS and NFS network file systems

1 minute read

RHEL7: Locate, read, and use system documentation including man, info, and files in /usr/share/doc.

2 minute read

RHEL7: Interrupt the boot process in order to gain access to a system.

2 minute read

RHEL7: Locate and interpret system log files and journals

2 minute read

RHEL7: Install Red Hat Enterprise Linux systems as virtual guests

1 minute read

RHEL7: How to get started with GRUB2

4 minute read

RHEL7: How to get started with Firewalld

14 minute read

RHEL7: Extend existing unencrypted logical volumes

4 minute read

RHEL7: List, create, delete partitions on MBR and GPT disks

7 minute read

RHEL7: Configure systems to boot into a specific target automatically

less than 1 minute read

RHEL7: Configure a system to use an existing LDAP directory service for user and group information

1 minute read

RHEL7: Configure SSH key-based authentication

2 minute read

RHEL7: Configure IPv4 addresses and perform basic IPv4 troubleshooting

9 minute read

RHEL7: Boot systems into different targets manually

1 minute read

RHEL7: Boot, reboot, and shut down a system normally.

less than 1 minute read

RHEL7: Access a virtual machine’s console

2 minute read

Back to top ↑

RHCE

RHEL7: Use SELinux port labelling to allow services to use non-standard ports.

2 minute read

RHEL7: Use Kerberos to control access to NFS network shares.

5 minute read

RHEL7: Start, stop, and check the status of network services.

1 minute read

RHEL7: How to set up the NTP service

7 minute read

RHEL7: Provide SMB network shares to specific clients.

2 minute read

RHEL7: Provide NFS network shares suitable for group collaboration.

1 minute read

RHEL7: Provide NFS network shares to specific clients.

3 minute read

RHEL7: Produce and deliver reports on system utilization (processor, memory, disk, and network).

less than 1 minute read

RHEL7: Perform simple SQL queries against a database.

2 minute read

RHEL7: How to install a MariaDB/MySql service.

6 minute read

RHEL7: How to get started with Firewalld

14 minute read

RHEL7: Deploy an Apache basic CGI application.

1 minute read

RHEL7: Create a simple database schema.

3 minute read

RHEL7: Configure a system to forward all email to a central mail server.

4 minute read

RHEL7: Configure a system to authenticate using Kerberos.

2 minute read

RHEL7: Configure a system as either an iSCSI target or initiator that persistently mounts an iSCSI target.

8 minute read

RHEL7: Configure a caching-only name server.

less than 1 minute read

RHEL7: Configure an Apache virtual host.

1 minute read

RHEL7: Configure Apache TLS security.

4 minute read

RHEL7: Configure Apache access restrictions on directories.

1 minute read

RHEL7: Configure Apache group-managed content.

less than 1 minute read

RHEL7: Configure aggregated network links between two RHEL systems.

less than 1 minute read

RHEL7: Configure additional SSH options described in documentation.

2 minute read

RHEL7: Backup and restore a MariaDB database.

2 minute read

Back to top ↑

SYS

LINUX: Choose a Linux distribution.

3 minute read

SYS: Start and stop virtual machines.

less than 1 minute read

SYS: Install and update software packages from Red Hat Network, a remote repository, or from the local file system.

less than 1 minute read

SYS: Create and remove physical volumes, assign physical volumes to volume groups, and create and delete logical volumes

3 minute read

SYS: Create and manage Access Control Lists (ACLs).

1 minute read

SYS: Identify CPU/memory intensive processes, adjust process priority with renice, and kill processes

less than 1 minute read

SYS: Create hard and soft links

less than 1 minute read

SYS: Create and edit text files

less than 1 minute read

SYS: Create, delete, and modify local user accounts

less than 1 minute read

SYS: Create, delete, and modify local groups and group memberships

less than 1 minute read

SYS: Configure systems to mount file systems at boot by Universally Unique ID (UUID) or label

1 minute read

SYS: Configure systems to launch virtual machines at boot

less than 1 minute read

SYS: Create and configure set-GID directories for collaboration

1 minute read

SYS: Change passwords and adjust password aging for local user accounts

less than 1 minute read

SYS: Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2

less than 1 minute read

SYS: Add new partitions and logical volumes, and swap to a system non-destructively

1 minute read

RHEL7: How to install an Apache service.

1 minute read

SYS: Manage repositories.

less than 1 minute read

SYS: Learn to use the yum command.

1 minute read

SYS: Learn to use the rpm command.

1 minute read

SYS: Configure a remote repository.

less than 1 minute read

SYS: Configure a local repository.

less than 1 minute read

Back to top ↑

Ubuntu

UFW Essentials: Common Firewall Rules and Commands

6 minute read

Installing and Using the Vim Text Editor on a Cloud Server

7 minute read

How To Edit the Sudoers File on Ubuntu and CentOS

12 minute read

SSH Essentials: Working with SSH Servers, Clients, and Keys

35 minute read

How To Create SSH Keys With PuTTY to Connect to a VPS

7 minute read

How To Configure SSH Key-Based Authentication on a Linux Server

12 minute read

Initial Server Setup with Ubuntu 16.04

9 minute read

How To Set Up an OpenVPN Server on Ubuntu 16.04

26 minute read

How To Use SFTP to Securely Transfer Files with a Remote Server

9 minute read

How To Use FileZilla to Transfer and Manage Files Securely on your VPS

5 minute read

How Fail2Ban Works to Protect Services on a Linux Server

18 minute read

Back to top ↑

Security

SSH Essentials: Working with SSH Servers, Clients, and Keys

35 minute read

How To Log Into Your Droplet with PuTTY (for windows users)

1 minute read

How To Create SSH Keys With PuTTY to Connect to a VPS

7 minute read

How To Configure SSH Key-Based Authentication on a Linux Server

12 minute read

How To Protect SSH With Fail2Ban on CentOS 7

7 minute read

How Fail2Ban Works to Protect Services on a Linux Server

18 minute read

Back to top ↑

YUM

SYS: Manage repositories.

less than 1 minute read

SYS: Learn to use the yum command.

1 minute read

SYS: Configure a remote repository.

less than 1 minute read

SYS: Configure a local repository.

less than 1 minute read

RHEL7: Use yum transaction history.

6 minute read

RHEL7: How to get started with package groups.

3 minute read

Back to top ↑

Apache

RHEL7: How to install an Apache service.

1 minute read

RHEL7: Deploy an Apache basic CGI application.

1 minute read

RHEL7: Configure an Apache virtual host.

1 minute read

RHEL7: Configure Apache TLS security.

4 minute read

RHEL7: Configure Apache access restrictions on directories.

1 minute read

RHEL7: Configure Apache group-managed content.

less than 1 minute read

Back to top ↑

SELINUX

SELINUX: Use boolean settings to modify system SELinux settings

3 minute read

SELINUX: Set enforcing and permissive modes for SELinux

1 minute read

SELINUX: Restore default file contexts.

less than 1 minute read

SELINUX: List and identify SELinux file and process context

less than 1 minute read

SELINUX: Diagnose and address routine SELinux policy violations

1 minute read

RHEL7: Use SELinux port labelling to allow services to use non-standard ports.

2 minute read

Back to top ↑

SSH

RHEL7: Configure additional SSH options described in documentation.

2 minute read

SSH Essentials: Working with SSH Servers, Clients, and Keys

35 minute read

How To Log Into Your Droplet with PuTTY (for windows users)

1 minute read

How To Create SSH Keys With PuTTY to Connect to a VPS

7 minute read

How To Configure SSH Key-Based Authentication on a Linux Server

12 minute read

Back to top ↑

MariaDB

RHEL7: Perform simple SQL queries against a database.

2 minute read

RHEL7: How to install a MariaDB/MySql service.

6 minute read

RHEL7: Create a simple database schema.

3 minute read

RHEL7: Backup and restore a MariaDB database.

2 minute read

Back to top ↑

CentOS

How To Edit the Sudoers File on Ubuntu and CentOS

12 minute read

How To Protect SSH With Fail2Ban on CentOS 7

7 minute read

Install PHP 7 on CentOS 7 and 6

2 minute read

Back to top ↑

Kerberos

RHEL7: Use Kerberos to control access to NFS network shares.

5 minute read

RHEL7: Configure a system to authenticate using Kerberos.

2 minute read

RHEL7: Configure a Kerberos KDC.

4 minute read

Back to top ↑

Network

RHEL7: Configure aggregated network links between two RHEL systems.

less than 1 minute read

RHEL7: Configure network teaming between two RHEL systems.

3 minute read

RHEL7: Configure network bonding between two RHEL systems.

3 minute read

Back to top ↑

Javascript

RHEL7: How to install a Wekan service.

2 minute read

RHEL7: How to install a NodeJS service.

2 minute read

RHEL7: How to install the Meteor framework.

2 minute read

Back to top ↑

PuTTY

How To Log Into Your Droplet with PuTTY (for windows users)

1 minute read

How To Create SSH Keys With PuTTY to Connect to a VPS

7 minute read

Back to top ↑

Delta-rpms

RHEL7: How to get started with delta rpms.

3 minute read

RHEL7: How to get started with CGroups.

8 minute read

Back to top ↑

BIND

RHEL7: Configure a master name server.

4 minute read

RHEL7: Configure a caching-only name server.

less than 1 minute read

Back to top ↑

POSTFIX

RHEL7: Configure a system to forward all email to a central mail server.

4 minute read

RHEL7: Configure a central mail server.

2 minute read

Back to top ↑

NFS

RHEL7: Provide NFS network shares suitable for group collaboration.

1 minute read

RHEL7: Provide NFS network shares to specific clients.

3 minute read

Back to top ↑

KVM

RHEL7: How to deal with KVM certificate expiration.

3 minute read

RHEL7: Configure a physical machine to host virtual guests.

1 minute read

Back to top ↑

DOCKER

RHEL7: How to install Cockpit.

2 minute read

RHEL7: How to get started with Atomic Host.

5 minute read

Back to top ↑

PowerShell

PowerShell : Useful Commands

1 minute read

Back to top ↑

PHP7

Install PHP 7 on CentOS 7 and 6

2 minute read

Back to top ↑

FileZilla

How To Use FileZilla to Transfer and Manage Files Securely on your VPS

5 minute read

Back to top ↑

FTP

How To Use FileZilla to Transfer and Manage Files Securely on your VPS

5 minute read

Back to top ↑

SFTP

How To Use SFTP to Securely Transfer Files with a Remote Server

9 minute read

Back to top ↑

VPN

How To Set Up an OpenVPN Server on Ubuntu 16.04

26 minute read

Back to top ↑

Wi-Fi

MikroTik CAP and CAPsMAN

1 minute read

Back to top ↑

Sudores

How To Edit the Sudoers File on Ubuntu and CentOS

12 minute read

Back to top ↑

Vim

Installing and Using the Vim Text Editor on a Cloud Server

7 minute read

Back to top ↑

Tutorials

Installing and Using the Vim Text Editor on a Cloud Server

7 minute read

Back to top ↑

UFW

UFW Essentials: Common Firewall Rules and Commands

6 minute read

Back to top ↑

Firewall

UFW Essentials: Common Firewall Rules and Commands

6 minute read

Back to top ↑

Systemd

RHEL7: How to get started with Systemd.

17 minute read

Back to top ↑

EPEL

RHEL7: How to install the EPEL repository.

less than 1 minute read

Back to top ↑

RPM

SYS: Learn to use the rpm command.

1 minute read

Back to top ↑

MAIL

RHEL7: Configure a central mail server.

2 minute read

Back to top ↑

iSCSI

RHEL7: Configure a system as either an iSCSI target or initiator that persistently mounts an iSCSI target.

8 minute read

Back to top ↑

DNS

RHEL7: Configure a master name server.

4 minute read

Back to top ↑

LDAP

RHEL7: Configure a system to use an existing LDAP directory service for user and group information

1 minute read

Back to top ↑

Firewalld

RHEL7: How to get started with Firewalld

14 minute read

Back to top ↑

SMB

RHEL7: Provide SMB network shares to specific clients.

2 minute read

Back to top ↑

VLAN

RHEL7: How to configure vlans.

3 minute read

Back to top ↑

I/O

RHEL7: How to configure I/O schedulers.

1 minute read

Back to top ↑

Etherpad

RHEL7: How to install an Etherpad service.

2 minute read

Back to top ↑

MediaWiki

RHEL7: How to install a Mediawiki service.

2 minute read

Back to top ↑

MongoDB

RHEL7: How to install a MongoDB service.

8 minute read

Back to top ↑

Node.js

RHEL7: How to install a NodeJS service.

2 minute read

Back to top ↑

JAVA

RHEL7: How to set up an environment variable.

1 minute read

Back to top ↑