ipv6

How to connect to IPv6 addresses in Kubernetes running on Google Container Engine?

由 烈酒焚心 提交于 2019-12-23 02:01:39
问题 Background I'd like to connect Wordpress docker container to a Google Could SQL instance. By default Google Cloud SQL only expose an IPv6 address and preferably I'd like to connect Wordpress to this address but I can't find a way to do so (see my other stackoverflow post for details). Question I'd like to know if it's possible to connect to an IPv6 address from a pod running in Kubernetes (GKE)? If so how? 回答1: Currently, Google Cloud Platform Networks only support IPv4, so connecting to IPv6

IPv6 Regular Expression (RegEx) Not Working in PL/SQL

由 ≯℡__Kan透↙ 提交于 2019-12-23 00:26:19
问题 I can't seem to find out why this regular expression is not working in PL/SQL . if ( REGEXP_LIKE(v,'/^(?>(?>([a-f0-9]{1,4})(?>:(?1)){7}|(?!(?:.*[a-f0-9](?>:|$)){8,})((?1)(?>:(?1)){0,6})?::(?2)?)|(?>(?>(?1)(?>:(?1)){5}:|(?!(?:.*[a-f0-9]:){6,})(?3)?::(?>((?1)(?>:(?1)){0,4}):)?)?(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])(?>\.(?4)){3}))$/iD') ) then It's for validating IPv4 and IPv6, it came from here: https://stackoverflow.com/a/1934546/3112803 Not sure if this has anything to do with it but I

IPv6应用普及，任重而道远

由 試著忘記壹切 提交于 2019-12-22 18:56:27
导读 2018年初开始，全国尤其是运营商网络开启了IPv6改造的大幕，很多企业都从工信部领到了军令状，要将IPv6改造工作彻底落实下去。现在2018年已接近尾声，回头看看实际部署情况如何。 IPv6涉及到应用网站、网络和应用服务器几个部分，网络部分作为关键，需要改造的地方很多，每套网络的实际情况各有不同，存在不少困难，好在IPv6喊了这么多年，技术上留了一些底子，每年采购设备虽IPv6没用，但一直作为技术必选项对网络设备强制要求，所以除了一些老旧设备，大部分网络天然具备平滑切换到IPv6的能力。即便这样，要将覆盖全国这么大的一张网络梳理清楚，并且都要打通开启IPv6，却非易事。 经过这大半年的折腾，初战告捷，各大运营商也纷纷亮出了成绩单，不仅网络完成了基本改造，IPv6用户也实现了快速增长。比如中国移动的IPv6用户达到了951万(移动宽带718万，固定宽带233万)，覆盖用户为7017万户，普及率为6%，这显然与国外20%的目标还有不少差距。2017年12月，工信部曾要求三大运营商到2018年末，实现IPv6用户规模不少于2亿，后来结合实际情况，在2018年降到了5000万，到目前来看5000万的实现也存在难度。 网络侧，运营商可以全力改造，只要舍得投入，实现IPv6用户覆盖率要求，问题不大，关键是要有活跃用户量的增长，就是实际使用IPv6的用户，否则网络成了摆设。 其实

Can I use EnableStatic for configuring an IPv6 addres (using WMI)?

由 本秂侑毒 提交于 2019-12-22 10:29:21
问题 I would like to use WMI (in C++) to configure a static IPv6 address. Configuring a static IPv4 address is working fine using EnableStatic , which is part of a WMI class named Win32_NetworkAdapterConfiguration . Can anyone help me configure an IPv6 address using WMI? I have been looking for example code, but have not found any. 回答1: No. According to the Win32_NetworkAdapterConfiguration documentation on the MSDN web site, this API supports limited IPv6 functionality (looks like it's limited to

Compare IP address to IPv6 block

由 不打扰是莪最后的温柔 提交于 2019-12-22 10:03:25
问题 I'm using PHP to compare the user IP address to a list of IP blocks, most of which are IPv4 but some of them are IPv6. The IP address I get from the user is always IPv4 compatible, or so I'm assuming. How would I go about comparing this? This is what I'm using now: function ip_check($ip, $cidr) { list($net, $mask) = split("/", $cidr); $ip_address = decbin(ip2long($ip)); $ip_net = decbin(ip2long($net)); if (substr($ip_net, 0, $mask) == substr($ip_address, 0, $mask)) { return TRUE; } return

What dictates the formatting of IPv6 addresses by System.Net.IPAddress.ToString()?

由 二次信任 提交于 2019-12-22 05:54:12
问题 The builtin .Net method System.Net.IPAddress.ToString() behaves inconsistently for IPv6 addresses. Given the byte array 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA , in some environments "aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:aaaa" is returned, whereas others return "aaaa:aaaa:aaaa:aaaa:aaaa:aaaa:172.172.172.172" . I understand that both are valid IPv6 formats, but I would like to be able to explain the difference. It seems that newer environments (Windows 7 and Server 2008 R2) are more likely to produce

Dual IPv4 and IPv6 support in Flask applications

由 梦想的初衷 提交于 2019-12-22 05:23:27
问题 Would it be possible to run Flask to listen in both IPv4 and IPv6 (i.e. dual IP stack)? As far as I checked it is possible to run either in IPv4 using: app.run(host='0.0.0.0', port=port, debug=True) or IPv6 using app.run(host='::', port=port, debug=True) but I haven't find a way of running in both at the same time (it is possible to have an instance of my Flask application listening to IPv4 and another instance listening to IPv6, but both cannot listen to the same port). Thanks! Update

Java regex for accepting a valid hostname,IPv4, or IPv6 address

由 こ雲淡風輕ζ 提交于 2019-12-22 05:15:16
问题 Anyone have a good (preferably tested) regex for accpeting only a valid DNS hostname, IPv4 or IPv6 address? 回答1: I understand that you may be forced to use a regex. However, if possible it is better to avoid using regexes for this task and use a Java library class to do the validation instead. If you want to do validation and DNS lookup together, then InetAddress.getByName(String) is a good choice. This will cope with DNS, IPv4 and IPv6 in one go, and it returns you a neatly wrapped

Where m flag and o flag will be stored in Linux

由 三世轮回 提交于 2019-12-22 04:37:22
问题 I want to know the value of m flag and o flag of recently received Router Advertisement. From the kernel source code I came to know that m flag and o flag are stored. /* * Remember the managed/otherconf flags from most recently * received RA message (RFC 2462) -- yoshfuji */ in6_dev->if_flags = (in6_dev->if_flags & ~(IF_RA_MANAGED | IF_RA_OTHERCONF)) | (ra_msg->icmph.icmp6_addrconf_managed ? IF_RA_MANAGED : 0) | (ra_msg->icmph.icmp6_addrconf_other ? IF_RA_OTHERCONF : 0); . . . Then I believe

Problem Converting ipv6 to ipv4

由 二次信任 提交于 2019-12-22 04:25:15
问题 I have some code in an asp.net app that needsto get the ipv4 address of the client computer (the users are all on our own network). Recently we upgraded the server the app runs on to windows 2008 server. Now the Request.UserHostAddress code returns the ipv4 when the client is on an older OS and ipv6 when they are on a newer OS (Vista and higher). So the feature that relys on this works for some clients and not others. I added code that is supposed to convert from ipv6 to ipv4 to try to fix
订阅 ipv6