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- 编辑
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How Port Knocking Maker - Mikrotik Script RouterOS | |
In computer networking, port knocking is a method of externally opening ports on a firewall by generating a connection attempt on a set of prespecified closed ports. Once a correct sequence of connection attempts is received, the firewall rules are dynamically modified to allow the host which sent the connection attempts to connect over specific port(s). A variant called single packet authorization (SPA) exists, where only a single "knock" is needed, consisting of an encrypted packet. | |
The primary purpose of port knocking is to prevent an attacker from scanning a system for potentially exploitable services by doing a port scan, because unless the attacker sends the correct knock sequence, the protected ports will appear closed | |
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# Mikrotik Port Knocking Generator with Icmp + Packet Size | |
# Date/Time: 2/14/2021, 12:14:10 PM | |
# https://fb.me/buananet.pbun | |
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# delete local tag '12345' | |
git tag -d 12345 | |
# delete remote tag '12345' (eg, GitHub version too) | |
git push origin :refs/tags/12345 | |
# alternative approach | |
git push --delete origin tagName | |
git tag -d tagName |