all relevant MX records point to nonexistent hosts or invalidly to
抱歉打扰各位，本人对邮件服务器不是很懂，特来请教，最近有人抱怨发给我们的信都被退回了，错误记录是： all relevant mx records point to non-existent hosts or (invalidly) to IP addresses 我上网查了半天，有人说是要设置allow_mx_to_ip = yes。但我觉得这个是指设置对方的allow_mx_to_ip = yes， 而不是我们的。而我又无法修改对方服务器的设置。 不知是否有其他解决办法呢？或者我们的邮件系统需要修改什么么？ 我们用...
我们可以在hosts文件中指定A记录如： 236.136.26.33 www.abc.com.cn 各位大哥，能不能加mx记录啊，邮件地址解析，大家知道我在说什么吧？ 主机名 abc.com.cn 怎么写啊，怎么加啊？
Updating records I am currently writing an application that needs to allow multiple users to view the same record at the same time. My problem is that they need the ability to update the record. What is the best way to handle this to make sure I don't overwrite previous changes when someone updates?
配置mail服务器的时候，测试是否成功，按照贴子介绍的命令 [quote] #su - qmaild -c "/var/qmail/bin/qmail-popup localhost /bin/checkpassword pwd"〈回车> +OK ，〈18789.978689240@localhost> user realuser〈回车> +OK pass password〈回车> [/quote] 可是却提示我 [quote] su: /nonexistent: No such file or directory [/quote] /nonexistent是passwd里面对qmaild的she...
Appendix B. RFCs relevant to Building a Resilient IP Network This appendix lists Requests For Comments (RFCs) that are relevant to building resilient IP networks. You can find a complete list of RFCs on the Internet Engineering Task Force (IETF) website at http://www.ietf.org . Each RFC falls into one of the following categories, as indicated in the table: S Standard I Informational BCP Best Curr...
1, Create an instance of array of array int[][] arrays; arrays = new int[10][20]; arrays[0][1] = 1; .... arrays[9][19] = 100; 2, Define temporary class then instance it. //A.java public abstract class A { public A() ........ abstract void Func(); }; //B.java // Define a temporary class derived from A to overload some member functions // then instance it. A obj = new A() { void Func...
