//Situation System prompts that:"wget: unable to resolve host address".//Analysis Unable to resolve host address means the problem of DNS(Domain Nam.....
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其他好文 时间:
2014-07-11 22:31:13
阅读次数:
187
Linux中thread (light-weighted process) 跟process在實作上幾乎一樣。最大的差異來自於,thread 會分享 virtual memory address space.a. 從kernel角度看兩者沒差別,在user看來process是least shared...
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系统相关 时间:
2014-07-11 20:41:54
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308
IPv6 have colon character, for example FF:00::EEIf concatenate URL String, IPv6 URL will like:http://FF:00::EE:8888/a/b/cActually we want:http://[FF:0...
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编程语言 时间:
2014-07-11 12:51:16
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291
帮助->关于会话 SID : 507DECLARE l_sid NUMBER := :SID;BEGIN FOR cur_sql IN (SELECT sql_text FROM v$sqltext_with_newlines t WHERE t.address IN (SELECT s.prev_...
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数据库 时间:
2014-07-11 09:59:01
阅读次数:
334
/*开始 初始CSS模板 开始*/ body, div, address, blockquote, iframe, ul, ol, dl, dt, dd, li, dl, h1, h2, h3, h4, h5, h6, p, pre, table, caption, th, t...
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Web程序 时间:
2014-07-09 18:34:38
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241
An IP address is 32-bit long. IP addresses are classified into A, B, C, D, and E classes, as shown in the figure below.
Please determine the class of an input IP address and obtain the corresponding IP address information according to the input 32-bit IP ...
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其他好文 时间:
2014-07-09 12:43:54
阅读次数:
232
首先创建一个简单的user表
CREATE TABLE `user` (
`id` int NOT NULL AUTO_INCREMENT ,
`name` varchar(255) NULL ,
`sex` varchar(255) NULL ,
`age` int NULL ,
`address` varchar(255) NULL ,
PRIMARY KEY (`id...
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数据库 时间:
2014-07-09 12:22:34
阅读次数:
219
ssh连接远程服务器,报警信息AddressX.X.X.Xmapstolocalhost,butthisdoesnotmapbacktotheaddress-POSSIBLEBREAK-INATTEMPT!如下:[root@upgirl~]#sshroot@192.168.0.203Address192.168.0.203mapstolocalhost,butthisdoesnotmapbacktotheaddress-POSSIBLEBREAK-INATTEMPT!root@19..
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其他好文 时间:
2014-07-09 08:04:07
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241
TCP创建socket:1 int socket(int domain, int type, int protocol);AF = Address FamilyPF = Protocol FamilyAF_INET IPv4 Internet protocols ip(7)AF_INET6 IPv6...
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其他好文 时间:
2014-07-08 22:39:05
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352
套接字是通信端点的抽象。文件描述符用open函数创建,而套接字描述符用socket函数创建。socket函数原型如下:
int socket(int domain, int type, int protocol);
// 返回值:成功返回套接字描述符,失败返回-1
domain域确定通信特性,不同的域表示地址的格式不同,表示域的常数以AF开头,表示地址族(address family)...
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系统相关 时间:
2014-07-08 16:34:18
阅读次数:
333