Top "Ipv6" questions

Is there a way for non-root processes to bind to "privileged" ports on Linux?

It's very annoying to have this limitation on my development box, when there won't ever be any users other than …

linux root ipv6 iptables linux-capabilities

Regular expression that matches valid IPv6 addresses

I'm having trouble writing a regular expression that matches valid IPv6 addresses, including those in their compressed form (with :: or …

regex networking ipv6

Maximum length of the textual representation of an IPv6 address?

I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, …

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How can I convert IPV6 address to IPV4 address?

I have application that uses IPv4 addresses (it stores them as long), so it only understands IPv4 addresses. Is it …

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What is IPV6 for localhost and 0.0.0.0?

As we all know the IPv4 address for localhost is 127.0.0.1 (loopback address). What is the IPv6 address for localhost and …

localhost ipv6 ipv4

How do ports work with IPv6?

Conventional IPv4 dotted quad notation separates the address from the port with a colon, as in this example of a …

tcp udp ipv6 ports

what does "dead beef" mean?

What does the word "dead beef" mean? I read it from a interview question. It has something to do with …

ipv6

Get IPv4 addresses from Dns.GetHostEntry()

I've got some code here that works great on IPv4 machines, but on our build server (an IPv6) it fails. …

c# .net dns ipv6 ipv4

Make docker use IPv4 for port binding

I have docker host and inside I have one container. The docker host is binding the port on IPv6 interface …

ubuntu docker port ipv6

How to set java.net.preferIPv4Stack=true at runtime?

I need to disable IPv6. For that the java documentation indicates setting jvm property java.net.preferIPv4Stack=true. But …

java ipv6 broadcast ipv4