• Home
  • Forum
  • Premium Domains
  • Contact Us
Computer How To
Menu Close
  • Home
  • Forum
  • Premium Domains
  • Contact Us

Ubuntu

[SOLVED] How to fix error: GPT PMBR size mismatch

April 21, 2022arstech Leave a Comment
GPT PMBR size mismatch

In this article you will learn how to fix the Linux error: GPT PMBR size mismatch will be corrected by write after executing fdisk command. The problem can happen when the partition table was set up for a smaller disk… Continue Reading →

CentOS, Linux, Ubuntu fdisk, Linux, parted, Ubuntu

How To Resize Linux Partition Using Command Line

April 21, 2022arstech Leave a Comment
Resize Linux Partition Command Line

In this article you will learn how to resize Linux partition from Command Line on virtual machine (VMware, Proxmox, AWS, ..). Тhis example is applicable for increase only for NON LVM partitions. In our example we will use Debian, but… Continue Reading →

CentOS, Linux, Ubuntu centos, fdisk, Linux, resize2fs, Ubuntu

How To Add New Disk in Ubuntu 20.04

January 13, 2022arstech Leave a Comment
How To Add New Disk in Ubuntu 20.04

In this article you will learn how to add new disk in Ubuntu 20.04, how to partition, format disk and mount new disk from command line. Finding the New Hard Drive in Ubuntu For this tutorial I attached to my… Continue Reading →

Ubuntu blkid, ext4, fdisk, fstab, gdisk, Hard drive, Linux, lshw, mount

Raspberry Pi 4 Ubuntu WiFi Setup

January 10, 2022arstech Leave a Comment
Raspberry Pi 4 Ubuntu WiFi Setup

In this article I will show Raspberry Pi 4 Ubuntu WiFi Setup from command line. Identify The WiFi Card Name In Raspberry Pi 4 Ubuntu Raspberry Pi 4 has hardware WiFi card already onboard, but you can add other USB… Continue Reading →

Linux, Ubuntu Raspberry Pi, Ubuntu, WiFi

How To Allow SSH Root Login On Ubuntu 20.04

December 20, 2021arstech 1 Comment
Allow SSH Root Login on Ubuntu

In this article you will learn How to Allow SSH Root Login on Ubuntu 20.04 LTS Linux step by step. By default you can login as other user. SSH login as root disabled on Ubuntu for security reasons. Also By… Continue Reading →

Linux, Ubuntu enable root ssh, root, SSH, ubuntu 20.04

How To Check Ethernet Connection Speed in Linux

December 2, 2021arstech Leave a Comment
Check Ethernet Connection Speed in Linux

In this article I will show How To Check Ethernet Connection Speed in Linux using 3 different ways. Ethtool Show Speed ethtool is powerful utility for query or control network driver and hardware settings for wired Ethernet devices. To determine… Continue Reading →

CentOS, Linux, Ubuntu Connection Speed, eth, Ethernet, ethtool command, link speed

[Solved] How to fix “Error: Let’s Encrypt validation status 400”

November 2, 2021arstech Leave a Comment
Let's Encrypt validation status 400

While trying add new WEB domain with SSL support or installing Let’s Encrypt SSL Certificate in Vesta / Hestia / MyVesta Control Panel yo may have receive an error “Error: Let’s Encrypt validation status 400”. That’s It! Discuss this topic… Continue Reading →

CentOS, Linux, Ubuntu Hestia, myvesta, vesta control panel, vestacp

How to Securely Wipe Hard Drive in Linux

October 18, 2021arstech Leave a Comment
Securely Wipe Hard Drive in Linux

In this article you will learn how to securely wipe hard drive Linux, also how to securely delete files in Linux. First you need found correct disk path to hard drive which you want securely wipe, list hard drives in… Continue Reading →

CentOS, Linux, Ubuntu Hard drive, Linux, scrub, Wipe

[SOLVED] Fail2ban High Memory Usage

October 13, 2021arstech Leave a Comment
fail2ban

In this article you will learn a couple of methods on how to fix Fail2ban High Memory Usage problem. There may be several reasons for Fail2ban consumption a very large amount of memory (in my case it was about 2,5… Continue Reading →

CentOS, Linux, Ubuntu Fail2ban, Memory, SQLite

Fix Zabbix Warning: Lack of Free Swap Space

September 7, 2021arstech Leave a Comment
Lack of Free Swap Space

In this article you will learn how to Fix Zabbix Warning: Lack of Free Swap Space, and manually clear swap memory in Linux. The problem has 3 solutions, create or increase swap space, increase server RAM, and finally we can… Continue Reading →

CentOS, Linux, Ubuntu Linux, Swap, Zabbix

Post navigation

← Older Articles

Follow us on Facebook

Follow us on Facebook

Tags

AMD Apache centos centos 7 CentOS 8 convert debian DJI Mavic 2 Pro DNS EPEL fdisk ffmpeg FreeNAS FreeSWITCH FusionPBX Hard drive hostname iptables iptraf java Linux log mysql Nginx Nvidia password port rdp redhat RHEL root script SIP sox SSH tcpdump Ubuntu Ubuntu 18.04 vestacp VMWARE Windows Windows 10 yum Yum Update Zimbra

Tags

AMD Apache centos centos 7 CentOS 8 convert debian DJI Mavic 2 Pro DNS EPEL fdisk ffmpeg FreeNAS FreeSWITCH FusionPBX Hard drive hostname iptables iptraf java Linux log mysql Nginx Nvidia password port rdp redhat RHEL root script SIP sox SSH tcpdump Ubuntu Ubuntu 18.04 vestacp VMWARE Windows Windows 10 yum Yum Update Zimbra

Recent Posts

  • DJI Mini 3 Pro Sample Footage
  • How to enable AMD Virtualization on the Aorus X570 Motherboard
  • [SOLVED] Cannot connect to the Docker daemon at tcp://docker:2375. Is the docker daemon running?
  • Script To Delete Log Files in Linux
  • How to Fix Minikube Error: This computer doesn’t have VT-X/AMD-v enabled

Recent Comments

  • arstech on Bash Script If Ping Fails Then Automatically Reboot Server
  • arstech on Bash Script If Ping Fails Then Automatically Reboot Server
  • Luca Sasdelli on Bash Script If Ping Fails Then Automatically Reboot Server
  • Luca Sasdelli on Bash Script If Ping Fails Then Automatically Reboot Server
  • arstech on Bash Script If Ping Fails Then Automatically Reboot Server

Categories

  • Android
  • Asterisk
  • CentOS
  • Cisco
  • cryptocurrency
  • DNS
  • E-mail
  • elastix
  • FFmpeg
  • FreeNAS
  • FreeSWITCH
  • FusionPBX
  • General
  • IpTV
  • kloxo
  • Linux
  • MikroTik
  • MySQL
  • Network
  • News and Reviews
  • sipXecs
  • Terraform
  • Ubuntu
  • Uncategorized
  • Video
  • VMware
  • VoIP
  • Windows
  • WordPress
© 2022 Computer How To. All rights reserved.
Fashionista by aThemes