It is important to store the passwords of user accounts in a secure fashion. There have been many high profile incidents where a security breach resulted in hackers obtaining database dumps of user passwords. The 2012 LinkedIn hack and the recent Adobe hack are two out of many similar cases. Due to the fact that […]
If you are the only sysadmin or developer, you can skip password when you run sudo command. By default, sudo asks for the password. Here is how you can run sudo without having to enter your password. I’m a new Unix system user. How do I use sudo command without a password on a Linux […]
I use the gpass password manager to store my randomly generated unique password for each site. However, many sites such as net banking prevent you from pasting a password when signing up. The site owner or webmaster disables pasting into password input fields. Want to paste your password on such site? Give it a try […]
One of the biggest digital assets, Bitcoin, has its own list of stories of thefts and breaches. With its value shooting up to $2900+ this year, it’s very obvious why everyone including cyber criminals show interest in Bitcoin. Either by asking BTCs in ransomware attacks or looting your wallets, hackers try their very best to get bitcoins. For example, last […]
We had talk about How to Find your WiFi password in Windows before , so we talk about How to Find your Wifi password in Macos now. In MacOS, it’s rather easy to view all the saved WiFi passwords. However, you need to make sure you login with an administrator account and know the […]
If you come across a situation when you want to share your WiFi with a guest but you’ve forgotten the password and it’s only saved on your computer ? or perhaps you’ve got a new device and want to connect it to all the WiFi networks that are saved on your computer. In both scenarios, […]
![[Tutorial] Set Up Database Replication In MySQL](https://yaoyuan.org/wp-content/uploads/2017/03/linux.jpg)
This tutorial describes how to set up database replication in MySQL. MySQL replication allows you to have an exact copy of a database from a master server on another server (slave), and all updates to the database on the master server are immediately replicated to the database on the slave server so that both databases are in sync. This is not a backup policy because an accidentally issued DELETE command will also be carried out on the slave; but replication can help protect against hardware failures though.
These are the steps that we will do in this tutorial:To disable SELinux , edit the file /etc/sysconfig/selinux , and change enforced to disabled .