Brute Force Attack & Dictionary Network Attack :

Dictionary and brute-force attacks are networking attacks in which the attacker attempts to log into a user’s account by systematically checking and trying with all the possible passwords until finding the correct one. The simplest method to attack is through the front door since you must have to logging in to get access of their account. If you have the necessary credentials, you can gain entry as a regular user without creating the suspicious logs, needing an unpatched entry, or tripping IDS signatures and can easily get access over all the features which are granted for the authenticated user. If you have a system’s substantiate credentials, your life is even simplified since attackers don’t have these luxuries. The term brute force means overwhelm the system through repetition. When hacking passwords, brute force requires dictionary software that combines dictionary words with thousands of different variations. It is a slower and less elegant process. These type of brute force attacks start with simple letters such as “a” and then move to full words such as “snoop” or “snoopy.” 100 to 1000 attempts can be made by brute force dictionary attacks per minute. After several hours or days, brute force attacks can crack any password. Brute force attacks restate the importance of password best practices, especially on critical resources such as network switches, routers, and servers.

How to avoid Brute Force Attack & Dictionary network Attack :

  • Limit failed login attempts
  • Make the root user inaccessible via SSH by editing the sshd_config file
  • Don’t use a default port, edit the port line in your sshd_configfile
  • Use Captcha
  • Limit logins to a specified IP address or range
  • Two factor authentication
  • Unique login URLs
  • Monitor server logs


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