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Messege of the Day

To update the Message of the Day (MOTD) on all application and database servers in Datacenter, follow these steps:

Step 1: Copy the Approved username to Each Server

Since the username file is located on the jump host, you need to copy it to the target servers.

scp /home/thor/nautilus_username user@server:/etc/motd

Replace user@server with the actual usernames and server IP addresses.

If you have multiple servers, use a loop:

SERVERS=("app-server1" "app-server2" "db-server1" "db-server2")
for SERVER in "${SERVERS[@]}"; do
  scp /home/thor/nautilus_username user@$SERVER:/etc/motd
done

Step 2: Set Permissions

Ensure the MOTD file is readable:

sudo chmod 644 /etc/motd

Step 3: Verify the MOTD is Applied

Log into each server and check the contents:

cat /etc/motd

Or log out and back in to see if the username displays upon login.

Automating Using pdsh for Multiple Servers

If managing multiple servers, parallel execution using pdsh is helpful:

pdsh -w app-server1,app-server2,db-server1,db-server2 "scp /home/thor/nautilus_username root@{}:/etc/motd && chmod 644 /etc/motd"

Now, all servers should have the compliance-approved MOTD applied correctly! 🚀 Let me know if you need further adjustments.