Category: SysOps

System Operations

SysOps

How to use consistent exit codes in shell scripts

Post author By milosz
Post date August 12, 2022

Read sysexits FreeBSD manual page to learn how to use consistent exit codes in shell scripts.

Tags FreeBSD

SysOps

How to determine fastest server using ICMP

Post author By milosz
Post date August 8, 2022

Determine fastest server using the Internet Control Message Protocol (ICMP).

Tags Bullseye, Debian

SysOps

How to define ticket lifetime and renewable time

Post author By milosz
Post date August 1, 2022

Define ticket lifetime and renewable time when using MIT Kerberos.

Tags Kerberos

SysOps

How to flush buffers on a specific device

Post author By milosz
Post date July 26, 2022

Flush buffers on a specific device using blockdev utility.

Tags Impish Indri, Ubuntu

SysOps

How to increase the limit of the mmap counts

Post author By milosz
Post date July 25, 2022

Increase the limit of the mmap counts for Elasticsearch service.

Tags Elasticsearch

SysOps

How to alter date format when listing cached Kerberos tickets

Post author By milosz
Post date July 22, 2022

Alter date format when listing cached Kerberos tickets.

Tags Bullseye, Debian, Kerberos

SysOps

How to disable IPv6 on Raspberry Pi 4

Post author By milosz
Post date July 20, 2022

Disable IPv6 on Raspberry Pi 4.

Tags Raspberry, Raspberry Pi OS

SysOps

How to configure HashiCorp repository

Post author By milosz
Post date July 16, 2022

Configure HashiCorp repository.

Tags Jammy Jellyfish, Ubuntu