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some commands and configurations related to bgp general comma show router bgp show router route-map get router info bgp community-info (to check all communities configured) get router info bgp community 64550:2000 get router info bgp summary spoke side config config neighbor-group edit “advpn01-spokes ... ...

basic scan of one IP nmap 192.168.1.1 basic scan of subnet nmap 192.168.1.0/24 create and scan from a file nmap -iL test.txt random scan and exclude IP nmap -iR 50 exclude IP nmap 192.168.1.0/24 --exclude 192.168.1.100 export results to a file txt nmap 192.168.1.0/24 -oN /root/output.txt xml nmap 192.168.1.0/24 -oX /root/output.xml ...

tcp flags –> Synchronization flag (SYN flag) a packet with SYN flag set to 1 is sent to initiate a connection to a host as per classical 3-way handshake model. –> Acknowledgement flag (ACK flag) a packet with ACK flag set to 1 serves as a confirmation of getting the packets from sender –> Push flag (PSH flag) when PSH is set to 1...

collection of ….. so…here is a bunch of linux “things” that I have collected over the years I’m not quite sure how usefull is this here but…who knows. ;) in case you have the problem with pyhthon after installing gns3 sudo ln -s /usr/bin/python3 /usr/bin/python DNS settings - check public IP with CLI curl ifconfig.io GUI on RHEL serve...