Security of server is important to safeguard your crucial data and details from unauthenticated access and theft. Here are some important proactive security measures for implementation to strengthen server security and avoid hazards.
Choose a difficult password
Easy passwords like your date of birth, nickname and likes leaves your system more insecure and there is a chance for it to be hacked easily. It is highly recommended that you select password containing a mix of numeric, alphabets, characters as well as a few symbols. For example, "fr!3nd_74" will be a good choice as a password as it will be difficult to guess. Choose complicated password as the hackers have several ways to crack your encrypted password.
When it comes to inux server support for security purpose, the first thing that many will remember is different CGI scripts which will require you to get an extra password file from the attacked system. Never forget that simpler a password is, easier will it be to crack.
Length of Password
A password of short length is never a good choice. To make guesswork difficult for the hackers, keep length of password to eight though the minimum requirement by Linux server is five. To do that, you have to edit login.defs file which is the configuration file for login program. Also edit PASS_MIN_LEN 5 to PASS_MIN_LEN 8.File Transfer
Your server security will also be at risk during file transfer from one system to another. So, you must shut down FTPd while transferring file to your system. A surefire way to secure your system is to use SCP. It uses SSH for data transfer and also makes a good use of similar authentication that provides same level of security.
Secure Bios
To secure your server, set password by using BIOS security. It will allow you to block unauthenticated users who may attempt to boot your system by using a special disk.
Enable Shadow Password Feature
You can enhance server security by enabling Shadow Password feature. To do this, you need to apply a function "/usr/sbin/authconfig" on your system. If you want to convert your current password to shadow password, apply "pwconv, grpconv" commands.
Disable Your Unnecessary Accounts
Default users and unnecessary accounts can also be a threat to security for your server. So, if you delete all accounts like news, operator, games, sync and others, it will keep your server more secured.
Disable Console-Equivalent Programs for Access
This is another way to keep your server secured. Here, console-equivalent access programs include halt, reboot, shutdown that are used by your server every day.
Disable Unused Services
If you are not using a particular service, disable it.
Choose a difficult password
Easy passwords like your date of birth, nickname and likes leaves your system more insecure and there is a chance for it to be hacked easily. It is highly recommended that you select password containing a mix of numeric, alphabets, characters as well as a few symbols. For example, "fr!3nd_74" will be a good choice as a password as it will be difficult to guess. Choose complicated password as the hackers have several ways to crack your encrypted password.
When it comes to inux server support for security purpose, the first thing that many will remember is different CGI scripts which will require you to get an extra password file from the attacked system. Never forget that simpler a password is, easier will it be to crack.
Length of Password
A password of short length is never a good choice. To make guesswork difficult for the hackers, keep length of password to eight though the minimum requirement by Linux server is five. To do that, you have to edit login.defs file which is the configuration file for login program. Also edit PASS_MIN_LEN 5 to PASS_MIN_LEN 8.File Transfer
Your server security will also be at risk during file transfer from one system to another. So, you must shut down FTPd while transferring file to your system. A surefire way to secure your system is to use SCP. It uses SSH for data transfer and also makes a good use of similar authentication that provides same level of security.
Secure Bios
To secure your server, set password by using BIOS security. It will allow you to block unauthenticated users who may attempt to boot your system by using a special disk.
Enable Shadow Password Feature
You can enhance server security by enabling Shadow Password feature. To do this, you need to apply a function "/usr/sbin/authconfig" on your system. If you want to convert your current password to shadow password, apply "pwconv, grpconv" commands.
Disable Your Unnecessary Accounts
Default users and unnecessary accounts can also be a threat to security for your server. So, if you delete all accounts like news, operator, games, sync and others, it will keep your server more secured.
Disable Console-Equivalent Programs for Access
This is another way to keep your server secured. Here, console-equivalent access programs include halt, reboot, shutdown that are used by your server every day.
Disable Unused Services
If you are not using a particular service, disable it.
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