Shell script to login to server with autofill of sshadmin and root passwords.

First install expect in your local machine.
For ubuntu : apt-get install expect.
For Centos : yum install expect.

Create a file sshlogin
chmod +x sshlogin

#!/usr/bin/expect
set timeout 10
log_user 0
spawn ssh -p 1707 sshadmin@ipaddress
expect "*?assword:*"
send -- "sshadminPassword\r"
expect "*sshadmin@*"
send "su -\n"
expect "*?assword:*"
send -- "rootPassword\r"
send "uptime\n"
interact

1. Where 1707 is the ssh port,
2. ipaddress is the IP address of your server to which you need to login.
3. Replace "sshadminPassword" with your sshadmin password.
4. Replace "rootPassword" with your root password.
5. uptime is the command to execute after login to the server. You can give any command here.

You can also try (MTputty) in Windows machine for this purpose.
After installing the Mtputty

Go to Server Menu >> Add Server >> Script Tab

Enter the below code :

###_SLEEP:10000
sshadmin
###_SLEEP:2000
sshadmnpassword
###_SLEEP:10000
su - root
###_SLEEP:2000
rootpassword
###_SLEEP:200

1. Replace sshadminpassword with your sshadmin password.
2. Replace rootpassword with your root password.

Comments

K8s External Secrets integration between AWS EKS and Secrets Manager(SM) using IAM Role.

What is K8s External Secrets and how it will make your life easier? Before saying about External Secrets we will say about k8s secrets and how it will work. In k8s secrets we will create key value pairs of the secrets and set this as either pod env variables or mount them as volumes to pods. For more details about k8s secrets you can check my blog http://jinojoseph.blogspot.com/2020/08/k8s-secrets-explained.html So in this case if developers wants to change the ENV variables , then we have to edit the k8s manifest yaml file, then we have to apply the new files to the deployment. This is a tiresome process and also chances of applying to the wrong context is high if you have multiple k8s clusters for dev / stage and Prod deployments. So in-order to make this easy , we can add all the secrets that is needed in the deployment, in the AWS Secret Manager and with the help of External secrets we can fetch and create those secrets in the k8s cluster. So what is K8s external Secret? It i...

LXC Containers and How it differs from VMs and Docker Containers?

VM vs LXC ########## The main difference between the VMs and Containers is that virtual machines require their own kernel instance to run while containers share the same kernel. In other words, containers are virtualization at operating-system-level whereas VMs are virtualization at the hardware level. In virtual Machines each Guest OS will have its own Operating System and kernel. But in the case of LXC Containers the Guest OS will share the same OS of its Host machine. LXC vs Docker ############# LXC is a container technology that gives us the lightweight Linux containers and Docker is single application virtualisation which is based on top of the containerd Run time engine.. Thus even though based on container utilisation they may sound similar but they are completely different when it comes to usage. Unlike the lightweight LXC containers, docker does not tend to behave lightweight VM’s. Single application restriction of the docker is strictly by t...

Password reset too simplistic/systematic issue

Some time when we try to reset the password of our user in linux it will show as simple and systematic as below: BAD PASSWORD: it is too simplistic/systematic no matter how hard password you give it will show the same. Solution: ######### Check if your password is Ok with the below command, jino@ndz~$ echo 'D7y8HK#56r89lj&8*&^%&^%#56rlKJ!789l' | cracklib-check D7y8HK#56r89lj&8*&^%&^%#56rlKJ!789l: it is too simplistic/systematic Now Create a password with the below command : jino@ndz~$ echo $(tr -dc '[:graph:]' 7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K; You can see that this password will be ok with the cracklib-check. jino@ndz~$ echo '7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K;' | cracklib-check 7\xi%!W[y*S}g-H7W~gbEB4cv,9:E:K;: OK Thats all, Thanks.

My Experiments for Truth.

Search This Blog