Category: Advanced

  • How To Encrypt Root Filesystem on Linux

    How To Encrypt Root Filesystem on Linux

    As a system administrator, you probably already know how important it is to encrypt your disks. If your laptop were to be stolen, even a novice hacker would be able to extract the information contained on the disks. All it takes is a simple USB stick with a LiveCD on it and everything would be […]

  • Arping Command on Linux Explained

    Arping Command on Linux Explained

    As a network administrator, you are probably already very familiar with the ARP protocol. ARP is commonly used by layer two devices in order to discover as well as communicating with each other easily. When you are dealing with a small office network, you might be tempted to ping hosts in order to verify that […]

  • How To Install Samba on Debian 10 Buster

    How To Install Samba on Debian 10 Buster

    If you are working on a small to medium entreprise network, you probably have dozens of drives and printers that need to be shared. Besides the NFS protocol, there are plenty of other network protocols that can be used in order to share resources over a network. The CIFS, short for Common Internet File System, […]

  • Network File System (NFS) Administration on Linux

    Network File System (NFS) Administration on Linux

    Network File Systems, also shortened NFS, are file systems that can be accessed over the network. Compared to filesystems that may be local to your machine, network file systems are stored on distant machines that are accessed via a specific network protocol : the NFS protocol. NFS belongs to the large family of file sharing […]

  • How To Configure Linux as a Static Router

    How To Configure Linux as a Static Router

    As a network administrator, you probably know how costly routers can be. If you are configuring a complex network architecture, you might need Cisco or Netgear routers, as they embed advanced features for network management. However, if you plan on creating a small network for your company, there might be a cheapier alternative. What if […]

  • How To Change IP Address on Linux

    How To Change IP Address on Linux

    As a network administrator, you are probably managing various Linux machines over different subnets of your company infrastructure. As network topology changes, you may need to change the IP address already implemented on some machines. Also, if you switched from DHCP to static IP addressing, you will also need to change the IP address on […]

  • LVM Snapshots Backup and Restore on Linux

    LVM Snapshots Backup and Restore on Linux

    In our previous tutorials, we have seen that implementing LVM volumes can be very beneficial in order to manage space on your host. The Logical Volume Management layer exposes an API that can be used in order to add or remove space at will, while your system is running. However, there is another key feature […]

  • How To Search LDAP using ldapsearch (With Examples)

    How To Search LDAP using ldapsearch (With Examples)

    If you are working in a medium to large company, you are probably interacting on a daily basis with LDAP. Whether this is on a Windows domain controller, or on a Linux OpenLDAP server, the LDAP protocol is very useful to centralize authentication. However, as your LDAP directory grows, you might get lost in all […]

  • Logical Volume Management Explained on Linux

    Logical Volume Management Explained on Linux

    On Linux, it can be quite hard to manage storage and filesystems and it often needs a lot of different commands to move data. Traditional storage is usually made of three different layers : the physical disk (whether it is a HDD or a SSD), the logical partitions created on it and the filesystem formatted […]

  • How To Install AutoFS on Linux

    How To Install AutoFS on Linux

    Whether you are an experienced system administrator or just a regular user, you have probably already mounted drives on Linux. Drives can be local to your machine or they can be accessed over the network by using the NFS protocol for example. If you chose to mount drives permanently, you have probably added them to […]