ip

问题 When I receive an IP Packet with my Android VpnService I read the headers first (as here), then I try to print the received data as follows: int lengthRemaining = packet.remaining(); if (lengthRemaining > 0) { byte[] data = new byte[lengthRemaining]; packet.get(data, packet.arrayOffset(), lengthRemaining); Log.d(TAG, "Packet-Data: " + new String(data, Charset.forName("UTF-8"))); } This results in out put like the following: Packet-Data: ����5��(��������������������www�google�com������ Or

问题 Okay guys, I have this idea to recreate a program wich could find the best rout in IP networks. I found one guy on the internet who did it, and he shared some code..but whatever I'm doing with it, I can't make it work. I'm using Visual Studio 2012 with latest BOOST libs, C++. The IP protocol has a possibility of data transmission by the non-standard routes. therefore, at the IP-packege header, you can specify specific source routing option of IP-addresses list network routers through which

问题 Say I open a connection to a server like: conn, _ := net.DialTimeout("tcp", "127.0.0.1:2121", 10000000) and I do some stuff and then call conn.Close() that's option 1. But what if I don't call Close on the conn and just call os.Exit(1) leaving the connection still open. That's option 2. i.e. I'm trying to simulate a user uploading a file and either reaching the ending and really Closing the connection... or ending the stream being writen to the socket but never officially closing it. Back on

问题 I'd like to get a tcp/ip connection working over the internet. I already have two classes, one tcpserver which handles requests and a tcpclient which connects, sends and receives data. Until now I had it working perfectly on local networks. The usual 127.0.0.1 / localhost and my 192.168.xxx.xxx adresses are not giving any problems. My question is, what do I have to do to make it work over the internet. As I might want to do some research involving a simple http/server I need this to work. I

问题 I'd like to get a tcp/ip connection working over the internet. I already have two classes, one tcpserver which handles requests and a tcpclient which connects, sends and receives data. Until now I had it working perfectly on local networks. The usual 127.0.0.1 / localhost and my 192.168.xxx.xxx adresses are not giving any problems. My question is, what do I have to do to make it work over the internet. As I might want to do some research involving a simple http/server I need this to work. I

问题 I am writing an application in Java that serves a web page with data from an underlying database. I am limiting access to the web page based on some IP restrictions. Basically any IP that falls into the 'Accepted' range will be allowed to access the web page and any IP outside of this range will be redirected to an error page. To get the IP address of the user attempting to access the page I am using the following: String userIPAddress = request.getRemoteAddr(); Where 'request' is my

问题 I am writing an application in Java that serves a web page with data from an underlying database. I am limiting access to the web page based on some IP restrictions. Basically any IP that falls into the 'Accepted' range will be allowed to access the web page and any IP outside of this range will be redirected to an error page. To get the IP address of the user attempting to access the page I am using the following: String userIPAddress = request.getRemoteAddr(); Where 'request' is my

问题 Sample.txt file: ......................... some log file entries some log file entries some log file entries some log file entries This system ip is not found some log file entries some log file entries some log file entries This system IP is 172.16.80.10 some log file entries some log file entries This system IP:172.16.80.10 some log file entries some log file entries some log file entries Hostname::ip-172.16.80.10.ec2.internal some log file entries some log file entries ....................

问题 Currently I get usr's IP like this: if ( isset($_SERVER['HTTP_X_FORWARDED_FOR']) ){ $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } elseif ( isset($_SERVER['REMOTE_ADDR']) ) { $ip = $_SERVER['REMOTE_ADDR']; } // IPs +----+----------------+-------------+ | id | user_ip | date_time | +----+----------------+-------------+ | 1 | 43.12.9.9 | 1468070172 | | 2 | 173.3.0.1 | 1468070667 | +----+----------------+-------------+ But now, I read this in here: if you are going to save the $_SERVER['HTTP_X

问题 My question is about the following code (in this link): #include <stdio.h> #include <sys/types.h> #include <ifaddrs.h> #include <netinet/in.h> #include <string.h> #include <arpa/inet.h> int main (int argc, const char * argv[]) { struct ifaddrs * ifAddrStruct = NULL; struct ifaddrs * ifa = NULL; void * tmpAddrPtr = NULL; getifaddrs(&ifAddrStruct); for (ifa = ifAddrStruct; ifa != NULL; ifa = ifa->ifa_next) { if (ifa ->ifa_addr->sa_family==AF_INET) { // Check it is // a valid IPv4 address