Linux’s default security is entirely correct and higher than that of a maximum of its competitors, but it still has weaknesses. We realize that the most effective excellent server is a relaxed server, and so we’ve pulled our top hints collectively for securing a Linux VPS Server so that you can prevent the hackers at the gates earlier than they breach your web site and gain get admission to touchy data.
These techniques don’t want to take a significant quantity of time and effort. However, a certain level of administrative revel in is required. If you want any assistance then don’t be afraid to get in touch – we’ll be glad to assist.
Let’s get began; here are 7 ways to hold your VPS comfortable.
1. Turn off the root login
Do you want a safe VPS? Then you cannot enter as a root user.
By default, every Linux VPS Server has “root” as the username. Therefore hackers try to attack brutal forces to jump over passwords and gain access. Disabling user names from root usernames adds a security layer because hackers don’t just guess your user credentials.
Instead of entering as a root user, you must create a different username and use the sudo command to run the root command. Sudo is a special privilege that can be given to authorized users so that they execute administrative commands and no longer need root access. Make sure you create a non-root user and set the appropriate permission level before deactivating the root account.
Then continue by opening / etc / ssh / sshd_config on nano or vi and finding the PermitRootLogin parameter.
By default, “Yes” is displayed. Change the value to “No” and save the changes.
2. Change the SSH port
It’s hard for people to hack SSH if they can’t find it. Changing the SSH port number can prevent malicious scripts from connecting directly to the default port (22).
To do this, open / etc / ssh / sshd_config and change the appropriate settings.
Make sure another service uses your port number – you don’t want to crash!
3. Keep server software program updated
It isn’t difficult to replace your server’s software.
You can use the rpm/yum package manager (CentOS/RHEL) or apt-get (Ubuntu/ Debian) to improve to more modern versions of installed software, modules, and additives. You may even configure the working device to ship yum bundle replace notifications through email. This makes it clean to hold song of what’s changing. And, in case you’re glad to automate the mission, you can set up a cronjob to use all to be had security updates to your behalf.
If you’re using a panel, which includes Plesk or cPanel, then you’ll want to update that, too. Most groups may be set to replace themselves mechanically, and cPanel uses EasyApache for maximum bundle updates.
Finally, you’ll want to apply protection patches as speedy as feasible. The longer you wait, the much more likely you’re to succumb to a malicious attack.
4. Remove unwanted modules/packages
There’s no way you need all the boxes and services included in your Linux VPS Server distribution. Whatever service you delete is not too problematic. So make sure you only work with the services that you use.
Also, avoid installing unnecessary software, packages, and services to minimize potential threats. This is also a welcome side effect in streamlining your server performance!
5. Use GnuPG encryption
Hackers often target data as they pass through the network. For this reason, encrypting transfers to your server uses passwords, keys, and certificates that are very important. A popular tool is GnuPG, the key-based authentication system used to encrypt messages. It uses a “public key” which can only be decrypted by a “private key” that can only be accessed by the intended recipient.
6. You have a strong password policy
Weak passwords are always one of the biggest security threats. Don’t let the user account contain a blank password or use a simple password like” 123456, password, qwerty123, or trustno1″.
You can increase security by using upper and lower case letters for all passwords to avoid using words from dictionaries and to enter numbers and symbols. Enable aging passwords to force users to change old passwords regularly, and consider limiting previous password reuse. Use the “faillog” command to set the failure to enter and block user accounts from brute force attacks after several failed attempts to protect the system. Check Hosting Solution
7. Make /boot read-only
On Linux servers, all kernel-specific files are stored in the “/ boot” directory.
But the default access level for the directory is “read-write.” To prevent unauthorized changes to startup files that are critical to your server’s operation, it is a good idea to change the read-only access level.
To do this, simply edit the file / etc / fstab and add LABEL = / boot / boot ext2 by default, 1 2 at the bottom. And, if you need to make kernel changes in the future, you can go back to read-write mode. Then you can make your changes and restore the read-only mode when you’re done.