Author: admin

how to install let’s encrypt ssl certificate in centos using SSH command

Nowadays hacking is so simple,with out much technical extreme anybody can access other data,so it is important to encrypt the data when it exchange between the system,fortunately we have a standard security protocol called ssl to encrypt our data,among the ssl certificate let’s encrypt certificate is most popular and it is free.So we will discuss how to install let’s encrypt ssl certificate in centos using SSH command.We have certbot is their to do that. we will check each steps one by one

Login to ssh window

1) Download Certbot

#wget https://dl.eff.org/certbot-auto

2) Move Certbot to /usr/local/bin/

#sudo mv certbot-auto /usr/local/bin/certbot-auto

3) Change certbot-auto folder Owner to root

#sudo chown root /usr/local/bin/certbot-auto

4) Change certbot-auto folder permission to 755

#sudo chmod 0755 /usr/local/bin/certbot-auto

5) Install let’s encrypt ssl certificate in centos using SSH command

#sudo /usr/local/bin/certbot-auto --apache

How to enable Let’s Encrypt SSL certificate from cpanel

We know Let’s Encrypt SSL is most used SSL certificate and also it is a free service,you can install this free Let’s Encrypt SSL certificate for any of your domain.We know we can enable Let’s Encrypt SSL certificate from command prompt .Here am using cpanel for my server management, so in this tutorial we are going to discuss how to enable Let’s Encrypt SSL certificate from cpanel.

1) Open cPanel ,go to Security Section and check Lets Encrypt™ SSL tab is their or not

Let’s Encrypt SSL certificate from cpanel

2) If not their open SSH prompt

see link How to connect to ssh command prompt using cPanel info

3) add letsencrypt repo

#wget https://cpanel.fleetssl.com/static/letsencrypt.repo -O /etc/yum.repos.d/letsencrypt.repo

4) Install letsencrypt plugin

#yum -y install letsencrypt-cpanel

5) Test letsencrypt Installation

# le-cp self-test

6) Now again Open cPanel ,go to Security Section and check Lets Encrypt™ SSL tab

Let’s Encrypt SSL certificate from cpanel 2

7) Add your domain info and create Let’s Encrypt SSL certificate from cpanel

enjoy 🙂

How to change MySQL root password without knowing the old password ?

Sometime we don’t have any idea about the old MySQL root password,but we have to use root password to manage our application so automatically you are going to behind the topic how to change MySQL root password without knowing the old password,here am using Linux os and we have Linux root ssh login details.So lets find out the steps to change root password

1) Stop the server 

 #service httpd stop

2) open MySQL section

 #mysql
  How to change MySQL root password without knowing the old password step 1

3) Select Mysql Database

  > use mysql

4) Update root Password Section

>update user SET password=password(“hello@123”) where user=’root’;

if you are getting error for changing MySQL root password follow steps 5

5) show tables

   > show tables



How to change MySQL root password without knowing the old password step 2

 user table exits

6) Find user table fields

   > describe user
  How to change MySQL root password without knowing the old password step 3
 No password field instead of password we have authentication_string fields

7) Finally update new password

update user SET authentication_string=password("hello@123") where user='root'