Where you've read it. Don't read such resources again... Better get a literate book on networking.NAT is not a web filter, it's an address substitution system. If the NAT provider doesn't have enough reals. And if that's the case, whatever technology you're sending a package to such a ip provider won't know which one of the customers will transfer it. For any NAT is based on a memorial to the sessions established. Here you are sending a bag to port 443 from your own. Internal ip, we're still silent on port 12345. The provider changes your IP to some of his pool and changes the port of sender to 32,000, and remembers that any packages coming to port 32,000 of the goul (from where the ip was sent) should be sent to X's client to port 12345. If a package comes outside to any other port for which such a condition has not been remembered, the package will be destroyed because it will not be clear to whom to send it.Any small literate online filter provider is blocked first. any packages coming from subscribers any coming from the IP, which was not issued to the subscriber. So the IP replacement package will be killed on the first route (and in some cases directly on the scroll where the subscriber is included). In addition, silence was killed, without the formation of ICMP. There are no such blocks on interoperative channels (and not always).The notion of keep-alive exists only for protocols with a connection established. There are no packages for ICMP. ICMP is not physically capable of stopping the way. Except where this ICMP is a request for ping and falls within the overall NAT scheme.

♪ /etc/network/interfaces Write.auto eth0 allow-hotplug eth0 iface eth0 inet static address 192.168.1.2 netmask 255.255.255.0 gateway 192.168.1.1 auto eth0:0 allow-hotplug eth0:0 iface eth0:0 inet static address 192.168.1.3 netmask 255.255.255.0 auto eth0:1 allow-hotplug eth0:1 iface eth0:1 inet static address 192.168.1.4 netmask 255.255.255.0 IP addresses are naturally mine, and then DNS and routing.

It's a very vague question that says it's all too much and nothing. Specific response to which - No The router won't protect your server.To calculate the load, it is necessary to know the peak of the hiths per second on the server (to find on the specifications the possibility of CPU/ASIC-free trawling)Number of unique clients (to calculate the breadth of the table);The essence of your traffic to the site. It's clear that most of this is the protocol, but as soon as you don't know the banal things higher, maybe you're multicast from the strip site, and it's just a website for you-- things like multicast/dhcp, you need a CPU-based router because they usually handle the "head."Everything that's said doesn't make sense, if you've even read it to this point, because it's likely that any router in the category of house will depend on a small-scale network activity. to Your website, if it exists. Well, if this "for you" site comes at all any time, it's it's important not to aphish it because it's said earlier. And that's just about the choice of the Router. I completely don't understand what you mean by "protection." DDoS protection? Not at home. Break-in protection? It's not with a router, just a firewall. In fact, if you're attacked with ddos, it's likely that your provider will shut you down. If you're interested in my personal opinion, it's the server's site on the CD and/or the hostess, but not home.

Since no one wanted to help, jacked his bike and put it here to help others, perhaps the code is wrong, only checked on their system:#pragma comment(lib, "IPHLPAPI.lib") #include <winsock2.h> #include <iphlpapi.h> #include <algorithm> #include <sstream> #include <iomanip> #define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x)) #define FREE(x) HeapFree(GetProcessHeap(), 0, (x)) template<typename T> static std::string HexToString(T uval) { std::stringstream ss; ss << std::setw(sizeof(uval) * 2) << std::setfill('0') << std::hex << +uval; std::string strToConvert = ss.str(); std::transform(strToConvert.begin(), strToConvert.end(), strToConvert.begin(), ::toupper); return strToConvert; } std::wstring GetMac() { std::wstring result; unsigned int i = 0; DWORD dwRetVal = 0; ULONG flags = GAA_FLAG_INCLUDE_PREFIX; ULONG family = AF_INET; PIP_ADAPTER_ADDRESSES pAddresses = NULL; ULONG outBufLen = sizeof(IP_ADAPTER_ADDRESSES); pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC(outBufLen); if (GetAdaptersAddresses(family, flags, NULL, pAddresses, &amp;outBufLen) == ERROR_BUFFER_OVERFLOW) { FREE(pAddresses); pAddresses = (IP_ADAPTER_ADDRESSES *)MALLOC(outBufLen); } if (pAddresses == NULL) return L""; dwRetVal = GetAdaptersAddresses(family, flags, NULL, pAddresses, &amp;outBufLen); if (dwRetVal == NO_ERROR) { if (pAddresses-&gt;PhysicalAddressLength != 0) { std::string str; for (i = 0; i &lt; pAddresses-&gt;PhysicalAddressLength; i++) { if (i == (pAddresses-&gt;PhysicalAddressLength - 1)) str += HexToString((unsigned char)pAddresses-&gt;PhysicalAddress[i]); else str += HexToString((unsigned char)pAddresses-&gt;PhysicalAddress[i]) + ":"; } result = std::wstring(str.begin(), str.end()); } } FREE(pAddresses); return result; } p.s. from version NetBios refused because of his absence Windows Vista♪ Windows Server 2008 I'm sorry.

The simplest option is to put everything in one address area. In the building of the Virtualbox network, make a "net bridge."

If you're in your class manually managing resources (e.g. dynamic memory), you should also comply with Rule Three: not forget to use corrective measures. copy designer♪ A copycat operator and Designator♪ (In modern C++, this rule has been transformed into Rule Five, i.e., the transferor and the transferr of the assignee have been added. But it's an option.In your particular case, because of the lack of a correctly implemented copying design, it is not possible to correctly transfer the parameter into the method. connector correct return of the result from this method. (Why are the parameters transferred to the method connect by weight - a separate question.)It is also worth pointing out that it is not clear why the demonstrators of your facilities at the end of their function have made clear. main will lead to an uncertain behaviour later when the same destructors will be summoned again automatically.

https://developer.android.com/reference/android/net/ConnectivityManager.html#CONNECTIVITY_ACTION ♪ He's not deprecated, and he's doing great.Alternatives may be, for example, every second ping, but there's no point in them, that's how it works, like before.

You're using a rule to redirect bags from port 53 to 9053, but you don't have a rule to permit incoming server bags. Any answers from 9053? Then you need that rule... -A INPUT -p udp --dport 9053 -j ACCEPTAbout HTTPS, this protocol uses port 443, and you only have packages from the 80th port (HTTP). Add your rule to this: -A INPUT -p tcp -m multiport --dports 22,80,443,8888,8889 -j ACCEPTSupplement: Didn't work for DNS? What about HTTPS? Is he in trouble? And you tried to use the transaction log? For example, designate LOG_ACCEPT/LOG_REJECT and then describe them in approximately:-A LOG_ACCEPT -j LOG --log-prefix "INPUT:ACCEPT:" --log-level 6 --log-uid -A LOG_ACCEPT -j ACCEPT-A LOG_REJECT -j LOG --log-prefix "INPUT:REJECT:" --log-level 6 --log-uid -A LOG_REJECT -j REJECT( tastes)

Copy-paste from http://docs.oracle.com/javase/tutorial/networking/nifs/listing.html import java.io.*; import java.net.*; import java.util.*; import static java.lang.System.out; public class ListNets { public static void main(String args[]) throws SocketException { Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces(); for (NetworkInterface netint : Collections.list(nets)) displayInterfaceInformation(netint); } static void displayInterfaceInformation(NetworkInterface netint) throws SocketException { out.printf("Display name: %s\n", netint.getDisplayName()); out.printf("Name: %s\n", netint.getName()); Enumeration&lt;InetAddress&gt; inetAddresses = netint.getInetAddresses(); for (InetAddress inetAddress : Collections.list(inetAddresses)) { out.printf("InetAddress: %s\n", inetAddress); } out.printf("\n"); } }

eth0:1 eth0:2n. network interface aliases programme subsystem linux 15-16 years ago, I've been doing a normal configuration without this heavy legacy, but if you want, just finish the configuration. alias-ami♪The challenge is that I want the meaning of src 100.100.100.102 to be that ip I will tell you (and it was permanent).And point it out clearly.auto eth0 iface eth0 inet static address 100.100.100.100 netmask 255.255.255.0 up ip a a 100.100.100.101/24 dev $IFACE up ip a a 100.100.100.102/24 dev $IFACE up ip r c 100.100.100.0/24 dev $IFACE src 100.100.100.102 Reductions used (may be written and completely, just so short):ip a a = ip address addip r c = ip route changeon &quot; Complementing alias-ami&quot; .If they're so necessary, it's easier to tell them. alias- (in programme terminology) ip - marks, labels(a) Direct arguments of the programme ip:ip a a ... label $IFACE:0

You can just make a grid bridge in the building of all the virtois and they'll be on the same grid with the host. DHCP will also be from the Router.

I didn't want to get the team.$ sudo iptables -t nat -A PREROUTING -p tcp -j REDIRECT --to-port 6000 Remove the rule by replacing the option -A (add) at -D (delete). All other options/parameters shall be exactly the same:$ sudo iptables -t nat -D PREROUTING -p tcp -j REDIRECT --to-port 6000

IP Forwarding should be included in the building of the driveway. On the vinde, it's in the key of the registry. HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parametersmeaning IPEnableRouter♪ The truth is, it's written in the WinXP instructions, and I didn't personally check whether this was enough.And in the bridge, you've brought the interfaces together for nothing. The bridge and routing are easily interconnected: the bridge combines two networks at the canal level and the routing on the network.Alternatively, leave the bridge and join the subnets. For example, in both segments of the address from subset 192.168.0.0, or leave it as it is, but set up a subset of 255.255.254.0. There's no need for marshruts like this.

There's a special, paid library. https://ru.wikipedia.org/wiki/Pcap ♪ Allows for the establishment of web-based data analysis programmes on the computer network map.

If we look inside the operating system (Windows 7), we'll see that the library. Iphlpapi.dll♪%SYSTEM_ROOT%\System32\Iphlpapi.dll() exporting this function has a MUI-component Iphlpapi.dll.mui♪ But this MUI-component only exists for the English elbow.%SYSTEM_ROOT%\System32\en-US\Iphlpapi.dll.mui) If we look into the binary codes of this component, we'll see the lines that interest us. I mean, the library should take resources from the library. .muibut in the absence, only English is available.So we have three options:Wait for M$ to transmit messages;I'll write it myself. ru-RU\Iphlpapi.dll.mui;Transfer the necessary lines in your annex.

I don't know how you've been looking for information about the cash, but for each of the functions in MSDN, there's information on the cashing.For https://msdn.microsoft.com/en-us/library/windows/desktop/aa385096%28v=vs.85%29.aspx There are INTERNET_FLAG_FROM_CACHE and INTERNET_FLAG_OFFLINE.For https://msdn.microsoft.com/en-us/library/windows/desktop/aa384363%28v=vs.85%29.aspx Cashing is mentioned in the note.For the function https://msdn.microsoft.com/en-us/library/windows/desktop/aa384233%28v=vs.85%29.aspx is INTERNET_FLAG_CACHE_IF_NET_FAIL, INTERNET_FLAG_NO_CACHE_WRITE, INTERNET_FLAG_PRAGMA_NOCACHE, INTERNET_FLAG_RELOAD.And for functions https://msdn.microsoft.com/en-us/library/windows/desktop/aa384247%28v=vs.85%29.aspx ♪ https://msdn.microsoft.com/en-us/library/windows/desktop/aa385103%28v=vs.85%29.aspx The cash is mentioned in the notes.Don't mention what it says when it's impossible to connect to the network. Yes, in some cases, conduct is described in the autonomous/offline mode and in the event of error and inaccessibility. Then the data comes from the cash. But we are not aware of all the conditions of your testing.And the most interesting thing is to read the notes. HtpOpenRequest and InternetReadFile♪Note that caching happens automatically unless the original request to open the data stream set the INTERNET_FLAG_NO_CACHE_WRITE flag. If a verb other than "GET" or "POST" is specified, HttpOpenRequest automatically sets INTERNET_FLAG_NO_CACHE_WRITE and INTERNET_FLAG_RELOAD for the request. It could be written in the comments, but unfortunately they do not have so many texts.

Look at these projects: https://github.com/TheTincho/nemu https://github.com/mininet/mininet/wiki/Introduction-to-Mininet Maybe that's what you're looking for.

There's no way you could use the server.You have to have the information and logic of the game written on the server from which customers have to get their data on their phones.How do you do that? For example, http://android-er.blogspot.ru/2014/08/implement-simple-android-chat.html to create a chat and redesign. There's still a class for networking. Socket

As an option, to single out the download in a separate annex(s) that both of your applications request to download the file. And now this loader can make "singleton" in the system, he'll be the only one to download that file.Another option is to write a temporary (or permanent) file with the status of the required file: if it may be downloaded.

Team ln makes a reference. In shape ln <На что ссылаемся> <Файл-ссылка> or something. The team helped. ln -s /dev/ttyACM0 /dev/modem♪