Learn, Solve & Master Python, Linux, SQL, ML & DevOps
Learn how to find which process is using a specific port in Linux using ss, lsof, and netstat. Quickly identify blocked or occupied ports and stop conflicting services.
Learn how to mount an ISO file in Linux and configure it as a local package repository for offline systems, secure environments, and servers without internet access.
Reset a forgotten Linux root password safely using the GRUB rd.break method without reinstalling the operating system.
Safely extend an LVM partition by adding a new disk, creating a physical volume, extending the volume group and logical volume, and growing the filesystem online without downtime or reboot.
SSH login pauses for several seconds before asking for a password due to GSSAPI or Kerberos authentication. Learn how to quickly fix slow SSH logins safely.
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