Difference between 127.0.0.1 and 127.0.1.1?
109723
Why does my hostname appear with the address 127.0.1.1 rather than 127.0.0.1 in /etc/hosts?
40768
Difference between `nmap local-IP-address` and `nmap localhost`
7912
How does ServerName and ServerAlias work?
154756
In Ubuntu 16+, for a network interface "ens192", where does the "192" come from?
148827
What is the difference between Network Manager and 'ifconfig' 'ifup', etc?
24082
Why does my browser think that https://1.1.1.1 is secure?
121968
nslookup finds ip for a hostname in .local domain, but ping does not
100277
What are the differences between "precise" and "precise-updates" and "precise-backports"?
114327
Choosing between meaningful and meaningless hostnames
41884
How are connections differentiated from behind NAT routers?
58752
What is the difference between a hostname and a fully qualified domain name?
49589
Two identical files; Apache says one is forbidden
40744
Why do I have different IP addresses on different websites?
65447
Why did Ubuntu change the network configuration
97964
CentOS difference between version
35019
MySQL cannot connect via "localhost", only 127.0.0.1
155198
What is the difference between the "jessie" and "jessie-updates" distributions in /etc/apt/sources.list?