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TL;DR - Fastest methods in 2015 The fastest method using DNS: dig +short myip.opendns.com @resolver1.opendns.com The fastest using HTTP: curl -s http://whatismyip.akamai.com/ The fastest using HTTPS with a valid cert: curl -s https://4.ifcfg.me/ Using telnet: With nc command: nc 4.ifcfg.me 23 | grep IPv4 | cut -d' ' -f4 With telnet command: ...


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It means that you are using the same IP range on both interfaces, or overlapping IP ranges. For example: Interface IP Address Subnet Mask eth0 192.168.2.10 255.255.255.240 eth1 192.168.2.2 255.255.255.252 It causes an overlapping because, according to the subnet mask: eth0 is in the range 192.168.2.0 - 192.168.2.15 ...


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from http://manpages.ubuntu.com/manpages/utopic/en/man8/ifenslave.8.html # modprobe bonding # ifconfig bond0 192.168.0.1 netmask 255.255.0.0 # ifenslave bond0 eth0 eth1 however, you have to be sure the same bonding protocol is also set on remote equipment. There are seven modes for bonding configuration. These affect which non failed interface will ...


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IP Spoofing, is a technique where the attacker uses a forged IP source address with the purpose of concealing the identity of the sender or impersonating another computing system. However, this kind of attack will be nearly "impossible" from the internet because RFC1918 defines the following blocks that will be used only inside LAN environments: The ...



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