Notepad++ Organize IP Address List Numerically

Issue: Require numerically organizing a long list of IP addresses using the Notepad++ application Solution: Use Regex expressions in the “replace” feature of this application. Step 1 Open the replace dialogue. Please be sure to switch the Search Mode to “Regular expression” (by default the search mode is “normal”). Search for: Replace with: Step 2 … Read more

Configure Server to Ignore Ping

Issue: Configure CentOS server to ignore pings. Ping is useful to would-be attackers, who use it to identify systems. Configuring systems to ignore pings, may help them maintain a more hidden disposition, it is not a certain tool to eliminate attacks. In fact, it can disrupt someone trying to troubleshoot network connectivity. Solution: Use sysctl … Read more