$ puttygen key.ppk -O private-openssh -o key.pem
Sunday, December 4, 2022
Convert a putty .ppk key to an Amazon .pem file on Mac
$ puttygen key.ppk -O private-openssh -o key.pem
Migrate Linux server to AWS EC2
wget -O ./aws-replication-installer-init.py https://aws-application-migration-service-us-west-2.s3.us-west-2.amazonaws.com/latest/linux/aws-replication-installer-init.py
sudo python3 aws-replication-installer-init.py --region us-west-2
Sunday, September 4, 2022
How to access EC2 instance if lost key Pair and root credentials
Step-1:
Create a new instance with same OS as previous one or create it from AIM made from old instance
Step-2:
Shutdown the old instance and detach the volume
Step-3:
Shutdown new instance Attached the detached volume to new instance and start the instance
Step-4:
Login new instance using ssh console
Run the following commands:
lsblk
df -h
cd mnt
mkdir oldvolume
sudo mount /dev/sda1 mnt/oldvolume
cd mnt/oldvolume/root/.ssh
sudo vi authorized_keys
Now add your public key and save
umount /dev/sda1
sudo shutdown now
Step-5:
Now detach the dev/sda1 volume from new instance and attach to old instance as dev/sda
Step-6:
Reboot old instance from AWS dashboard and login your old instance using ssh console
Note: Your old instance IP will be changed after doing this if no elastic IP
Thursday, August 25, 2022
How to add public key to authorized_keys ec2 instance Ubunutu Linux
Step 1: Login into you AWS account and go to EC2 instances
Step 2: Select your instance and click connect
Step 2: Then click connect button at the bottom right corner
Step 3: Now a new tab will be opened with console as follows
Step 4: Copy your SSH public key then add the key to the following key file
Use this command in Mac/Windows powershell to copy your public key: pbcopy ~/.ssh/id_rsa.pub
nano ~/.ssh/authorized_keys
Step 5: Save and reboot then try to connect again with device from which public key generated.
Upload file to server using Power Shell Command
scp file_name.zip username@server_ip/server_address:/directory_path
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Put the following code in a TXT file and save as "file.cmd" then run the cmd file as administrator. @echo off title Activate Micr...
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We can install PowerMTA on the server. rpm -ivh /home/PowerMTA-4.0r6.x86_64.rpm You will see the output like this Preparing... #############...
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# $Id: config 2015-03-24 16:00:00 Jack $ # Sample PowerMTA configuration file # PowerMTA Multiple Virtual PMTA config file sample # # E-mai...