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how to find host name from IP with out login to the host
i need to find the host name of a UNIX host whose IP is known with out login to that UNIX host
11 Answers
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What are named pipes?
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Both on Windows and POSIX systems, named-pipes provide a way for inter-process communication to occur among processes running on the same machine. What named pipes give you is a way to send your data without having the performance penalty of involving the network st...
Predicate Delegates in C#
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@Andrew Hare: in your first code snippet, should that be yeild return instead? Or how does that work, how does it iterate over the whole list?
– VoodooChild
Sep 26 '11 at 16:42
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如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...得这些年用着还不错的常规指南。
How large is your training set?
训练集有多大？
If your training set is small, high bias/low variance classifiers (e.g., Naive Bayes) have an advantage over low bias/high variance classifiers (e.g., kNN), since the latter will overfi...
Windows下 C++网络延时检测 - C/C++ - 清泛网 - 专注C/C++及内核技术
...#include <winnt.h>
#define PING_TIMES 2 //ping 4 次
typedef struct _IPINFO
{
unsigned char Ttl; // Time To Live
unsigned char Tos; // Type Of Service
unsigned char IPFlags; // IP flags
unsigned char OptSize; // Size of options data
unsigned char FAR *Options; // Options ...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...理有Bug，DHCP租期到了不会主动续约并且会继续使用过期IP，这个问题会造成TCP长连接偶然的断连。（租期问题的具体描述见附录6.2）。
3、网络状态变化
手机网络和WIFI网络切换、网络断开和连上等情况有网络状态的变化，也会...
What is the largest TCP/IP network port number allowable for IPv4?
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@JessieArr Most IP stacks use a tuple of Source IP address, Source port, Destination IP address and Destination port as a unique identifier for connections. This means that a server can have many many more active connections than there are a...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...这么描述:
We use a consensus protocol to pick a primary. Exact details will be spared here but that basic process is:
get maxLocalOpOrdinal from each server.
if a majority of servers are not up (from this server’s POV), remain in Secondary mode and stop.
if the last op time se...
How can I redirect HTTP requests made from an iPad?
Since on an iPad we cannot edit the hosts file (without jailbreaking), how can we arbitrarily redirect web traffic to another url?
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数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...分词：
public class TestPositiveMatch {
public static void main(String[] args) {
String str = "我爱这个中华人民共和国大家庭";
List normalDict = new ArrayList();
normalDict.add("");
normalDict.add("爱");
normalDict.add("中华...