Gaurav Masand chkconfig was commonly used on older Linux distributions to view and manage which services start at different runlevels. On many modern systems, systemctl has replaced it. List service settings Modern systemd equivalent Use chkconfig mainly when working with older Red Hat, CentOS or similar systems that still use the older service model.
Practical Linux rootkit-checking notes covering chkrootkit, rkhunter, logs, package verification, and safer recovery after a suspected compromise.
Linux can read and write NTFS drives using the NTFS driver available in modern distributions. This is useful when accessing Windows partitions or external drives. Identify the device Confirm the device name and filesystem type before mounting. Do not guess device names. Create a mount point Mount the NTFS drive Replace /dev/sdXN with the correct … Read more
If umount reports that a CD, USB drive, or other removable filesystem is busy, first find out which process is still using the mount point. Killing processes blindly can cause data loss or interrupt unrelated work. Find what is using the mount fuser -vm /mount/point lsof +D /mount/point Close shells, file managers, editors, or applications … Read more
A practical rpm reference for querying RPM packages, with guidance on using dnf for normal dependency-aware package management.
lspci shows PCI buses and devices detected by Linux. It is useful for identifying network adapters, storage controllers, graphics devices, USB controllers, and other PCI hardware. Common commands lspci lspci -v lspci -vv lspci -nn lspci -k -v and -vv show increasing detail. -nn includes numeric vendor and device IDs. -k shows the kernel driver … Read more
A modern overview of Linux VNC server setup, including TigerVNC, SSH tunnelling, firewall restrictions, and safer remote-desktop practices.
How to find, mount and safely unmount drives in Linux.