iptables

Failed to fetch webpage, temporary failure resolving domain

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1.0 Error

While configuring a Linux server, the error Failed to fetch webpage, temporary failure resolving domain was observed.

$ sudo apt-get update
Err:1 ... bionic InRelease
  Temporary failure resolving ...
Err:2 ... bionic-updates InRelease
  Temporary failure resolving ...
...
Reading package lists...
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iptables command in Linux

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1.0 iptables

The iptables command is for defining rules for packet filtering for establishing and configuring firewalls in Linux. iptables, also, helps in configuring the Network Address Translation (NAT) for placing a local area network behind a single public IP address for accessing the Internet and for other uses.… Read more

Connecting two computers with Ethernet LAN cable

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Quite often, we wish to connect two computers back to back using an Ethernet LAN cable. It may be because we wish to transfer files between the two computers or because one of these has the Internet access and we wish to have one more access point to the Net.… Read more