Top network posts

• 23 What are the alternatives for checking open ports, besides telnet?
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• 17 renaming a huge folder: is it risky?
• 15 How to verify if iptables is running or the firewall is activated
• 15 How to test if array elements are all equal in bash?
• 10 awk/sed/perl one liner + how to print only the properties lines from json file
• 10 How to count the times a specific character appears in a file?
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