Step 1 : Please follow the below steps to install the Litespeed in shared server
Reference : https://docs.litespeedtech.com/lsws/cp/cpanel/quickstart/
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bash <( curl https://get.litespeed.sh ) your_serial_no
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Step 2 : For all the further steps keep the default value.
Step 3 : After installing the Litespeed, keep the password in seprate notepad
Step 4 : Check the Firewall whether 7080 port is allowed
Step 5 : In WHM interface, search for Litespeed and enable the Litespeed.
Step 6 : Click on Switch to Litespeed.
Step 7 : Login the Litespeed using the below URL.
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https://your server IP:7080
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Step 7 : Reset the password for Litespeed admin user from another shared server and login to Litespeed in seprate tab.
To reset the password for admin, refer to the below URL.
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https://www.interserver.net/tips/kb/how-to-reset-the-litespeed-admin-credentials/
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Step 8 : Go to Configuration -> server -> External APP in both server Litespeed interface. And copy the exact setup in new server.
Step 9 : Go to Configuration -> server -> Script Handler in both server Litespeed interface. And copy the exact setup in new server.
Step 10 : Once completed restart the Litespeed.
Step 11 : Verify the Litespeed running status in server backend