ipv6

Does hadoop and spark support IPv6 now?

由 ぐ巨炮叔叔 提交于 2019-12-02 10:59:30
问题 I want to build Hadoop and Spark cluster over a pure IPv6 environment. I have already built it over IPv4, how can I configure to run them under IPv6 environment？Do hadoop and spark support IPv6 now? 回答1: It does not. As of today HADOOP-11890, which track progress of IPv6 support, is still unresolved. 来源： https://stackoverflow.com/questions/47054959/does-hadoop-and-spark-support-ipv6-now

Retrieve IPv4 and IPv6 nameservers programmatically

由 谁说胖子不能爱 提交于 2019-12-02 10:10:24
I'm trying to use libresolv to read both the IPv4 and IPv6 nameservers in my /etc/resolv.conf file: # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers. nameserver 127.0.0.53 nameserver 2001:4860:4860:0:0:0:0:8888 This is my C program: #include <resolv.h> #include <stdlib.h> int main(int argc, char** argv) { res_state res = malloc(sizeof(struct __res_state)); res_ninit(res)

Java - How can I prefer IPv6?

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-02 09:23:42
问题 I want to get the content of http://en.wikipedia.org using java.net.URL 's openConnection() method. I find that en.wikiepdia.org has both IPv4 and IPv6 address: $ host en.wikipedia.org en.wikipedia.org is an alias for wikipedia-lb.wikimedia.org. wikipedia-lb.wikimedia.org is an alias for wikipedia-lb.eqiad.wikimedia.org. wikipedia-lb.eqiad.wikimedia.org has address 208.80.154.225 wikipedia-lb.eqiad.wikimedia.org has IPv6 address 2620:0:861:ed1a::1 How can I access that site using IPv6 address

Does hadoop and spark support IPv6 now?

由 本秂侑毒 提交于 2019-12-02 08:22:01
I want to build Hadoop and Spark cluster over a pure IPv6 environment. I have already built it over IPv4, how can I configure to run them under IPv6 environment？Do hadoop and spark support IPv6 now? It does not. As of today HADOOP-11890 , which track progress of IPv6 support, is still unresolved. 来源： https://stackoverflow.com/questions/47054959/does-hadoop-and-spark-support-ipv6-now

How to know the IP address for interfaces in C using IPv6

由 删除回忆录丶 提交于 2019-12-02 07:31:12
问题 Suppose I'd like a list of all IP addresses on my Linux machine by their interface names, using both IPv6 and IPv4. The best advice I could find is to use getifaddrs() that should support IPv6, similarly to a post from here. However, the getifaddrs() uses struct ifaddrs which uses struct sockaddr which is incompatible with IPv6. Instead, it should be a pointer to a union with struct in6_addr as well. How is this handled? How does getifaddrs() support IPv6? Is the documentation obsolete? 回答1:

Enumerate all network interfaces with IPs on FreeBSD

由 落花浮王杯 提交于 2019-12-02 07:18:50
问题 My application needs to list all network interafaces on a machine and their IPs, IPv4 and IPv6. I can get all interfaces with IPv4 IPs using ioctl(SIOCGIFCONF), but I need the IPv6 IPs, too. On Linux, those can get gotten from /proc/net/if_inet6, but where would I get them on FreeBSD ? 回答1: getifaddrs(3) provides portable way to get network addresses and interface names. 来源： https://stackoverflow.com/questions/7629164/enumerate-all-network-interfaces-with-ips-on-freebsd

Enumerate all network interfaces with IPs on FreeBSD

由 时间秒杀一切 提交于 2019-12-02 07:02:17
My application needs to list all network interafaces on a machine and their IPs, IPv4 and IPv6. I can get all interfaces with IPv4 IPs using ioctl(SIOCGIFCONF), but I need the IPv6 IPs, too. On Linux, those can get gotten from /proc/net/if_inet6, but where would I get them on FreeBSD ? getifaddrs(3) provides portable way to get network addresses and interface names. 来源： https://stackoverflow.com/questions/7629164/enumerate-all-network-interfaces-with-ips-on-freebsd

Java - How can I prefer IPv6?

由 前提是你 提交于 2019-12-02 06:04:18
I want to get the content of http://en.wikipedia.org using java.net.URL 's openConnection() method. I find that en.wikiepdia.org has both IPv4 and IPv6 address: $ host en.wikipedia.org en.wikipedia.org is an alias for wikipedia-lb.wikimedia.org. wikipedia-lb.wikimedia.org is an alias for wikipedia-lb.eqiad.wikimedia.org. wikipedia-lb.eqiad.wikimedia.org has address 208.80.154.225 wikipedia-lb.eqiad.wikimedia.org has IPv6 address 2620:0:861:ed1a::1 How can I access that site using IPv6 address? -Djava.net.preferIPv6Addresses=true This jvm argument will work. ct_ IPv6 in Java is transparent and

IPv6 Multicast example

由 。_饼干妹妹 提交于 2019-12-02 04:12:20
问题 I've searched for examples of how to implement a simple ipv6 multicast example, however I have only found examples using ipv4. Can anybody provide a simple "helloworld" example of ipv6 multicasting? 回答1: Here is a simple client server example. Incidentally running it on multiple machines on a network wil get all the machines chatting to each other, good for testing automatic discovery on the network. import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress;

Convert IPv4 to IPv6 manually

由 霸气de小男生 提交于 2019-12-02 03:54:40
After read this article i have a question: In the exapmle in this link there is explanation hot to convert 192.168.25.234 into equivalent IPv6 address so in the example this address become C0A8:19EA and it says that this can be written into the following 128-Bit IPv6 link-local address: FE80:0000:0000:0000:0000:0000:C0A8:19EA or FE80::C0A8:19EA So my question is how C0A8:19EA become FE80:0000:0000:0000:0000:0000:C0A8:19EA ? The C0, A8, 19 and EA are just 192, 168, 25 and 234 displayed in hex. The FE80 is a well-known prefix for link local. The rest is always all zero in this case (or for the
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