Score:0

What does 0.0.0.0/0 mean?

jo flag

For example in an 'allow' statement in BIND or in Chrony config files.

Does allow 0.0.0.0/0 mean allowing any clients or allowing no clients?

My question isn't about the specific programs, but just generally what is the correct interpretation of this CIDR notation.

Score:3
ca flag

It literally means all or any hosts - 99.99% of the time.

The only exception I can provide at hand is the whitelist of Cisco routers, where such "zero whitelist" means negating all hosts. It is a pretty specific case, though.

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.