Web security is the most important element for web server administrators. Without a proper security system, you are always on target for data loss and that is a big issue nowadays. There are so many hosting services available internally as well as locally, like email hosting services in Pakistan Therefore, here are some of the tips that can help you to make your web server harder and continuously monitor them for security purpose.
Public key authentication for SSH should be used
If you are concerned about the security of your data then you should stop using the telnet or HTTP. The accepted standards for this purpose are SSH, SFTH, and https. If you want, even more, security standards then remove the password authentication on SSH altogether, and instead of that try using SSH keys. There are always two keys available to a user. One key is the private key, which is kept by the user, while the other is the public key, which is kept by the server. When a user tries to login his or her account through a private key, SSH matched that key with the public key.
Always keep your passwords strong
If your server’s security is hardened through a strong password, then it is a challenge for the criminals to reach the data. However, you will be so surprised to know how many people have kept their front doors wide open to be attacked. Try to use a very long password with random digits and alphabets. Long passphrases can also be used and restrict the users through login type of access to your account.
Keep your software up-to-date
If your software is out of date then your server is vulnerable due to high risk of known access to the hackers. Even if you do not practically apply all the advice in the article, then at least you should update with the use of a Linux distribution’s package manager.
Regularly make the backup of your account
Usually, people do not think of a backup as a security measure, but the main reason for storing data through backup is to save it from potential loss. You can never guarantee that your data will not be compromised, so you should always keep a backup to an offsite location.
Always turn off the unnecessary services
Always disable any internet facing software that is not required for your server. It is better to have the least point of contacts between the outside world and the server’s internal environment. All Linux services include a tool for managing services.
You should also apply this to the web server engine itself. Turn off all the modules you do not need anymore. Remove the language modules you do not use now. Disable the web server status and disable the debugging pages. The least portion of your information you provide about your infrastructure, the fewer chances will be to be attacked.
Monitor the logs
Logs are a very important security tool. A server usually collects a huge amount of data about what it does and who can connect to it.logwatch is such an amazing tool that can help you analyze and summarize what is going on in your server.