C # get computer information

Get computer information, get remote computer information when you need to shut down the remote machine's firewall, or not get the relevant information.

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingsystem.web;usingSystem.Text;usingSystem.Runtime.InteropServices;/// <summary>///Summary description of Nethelper/// </summary> Public classnethelper{ PublicNethelper () {} Public Static stringGetbrowsertype () {returnHttpContext.Current.Request.Browser.Type; }     Public Static stringgetsysversion () {stringAgent = httpcontext.current.request.servervariables["http_user_agent"]; if(Agent.indexof ("NT 4.0") >0)        {            return "Windows NT"; }        Else if(Agent.indexof ("NT 5.0") >0)        {            return "Windows $"; }        Else if(Agent.indexof ("NT 5.1") >0)        {            return "Windows XP"; }        Else if(Agent.indexof ("NT 5.2") >0)        {            return "Windows 2003"; }        Else if(Agent.indexof ("NT 6.0") >0)        {            return "Windows Vista"; }        Else if(Agent.indexof ("WindowsCE") >0)        {            return "Windows CE"; }        Else if(Agent.indexof ("NT") >0)        {            return "Windows NT"; }        Else if(Agent.indexof ("9x") >0)        {            return "Windows ME"; }        Else if(Agent.indexof ("98") >0)        {            return "Windows 98"; }        Else if(Agent.indexof (" the") >0)        {            return "Windows"; }        Else if(Agent.indexof ("Win32") >0)        {            return "Win32"; }        Else if(Agent.indexof ("Linux") >0)        {            return "Linux"; }        Else if(Agent.indexof ("SunOS") >0)        {            return "SunOS"; }        Else if(Agent.indexof ("Mac") >0)        {            return "Mac"; }        Else if(Agent.indexof ("Linux") >0)        {            return "Linux"; }        Else if(Agent.indexof ("Windows") >0)        {            return "Windows"; }        return "Unknow"; }    /// <summary>    ///If there is an agent then pass the proxy directly to the value/// </summary>    /// <returns></returns>     Public Static stringGetclientip () {if(httpcontext.current.request.servervariables["Http_via"] !=NULL)            returnhttpcontext.current.request.servervariables["http_x_forwarded_for"].        ToString (); Else            returnhttpcontext.current.request.servervariables["REMOTE_ADDR"].    ToString (); }     Public Static stringgethostname () {returngethostname (Getclientip ()); }     Public Static stringGetmac () {returnGetmac (Getclientip ()); }     Public Static stringGetHostName (stringipstr) {                stringHostName =string.        Empty; Try{System.Net.IPAddress IP=System.Net.IPAddress.Parse (IPSTR); System.Net.IPHostEntry Host=System.Net.Dns.GetHostEntry (IP); HostName=host.        HostName; }        Catch        { }        returnHostName; } [DllImport ("Iphlpapi.dll")]    Static extern intSendarp (Int32 destip, Int32 Srcip,refInt64 Macaddr,refInt32 Phyaddrlen); [DllImport ("Ws2_32.dll")]    Static externInt32 inet_addr (stringipaddr); /// <summary>     ///Sendarp get MAC address/// </summary>     /// <param name= "Remoteip" >IP address of the target machine (192.168.1.1)</param>     /// <returns>MAC address of the target machine</returns>      Public Static stringGetmac (stringRemoteip) {StringBuilder macAddress=NewStringBuilder (); Try{Int32 remote=inet_addr (REMOTEIP); Int64 Macinfo=NewInt64 (); Int32 length=6; Sendarp (remote,0,refMacinfo,reflength); stringtemp = convert.tostring (Macinfo, -). PadLeft ( A,'0').            ToUpper (); intx = A;  for(inti =0; I <6; i++)            {                if(i = =5) {macaddress.append (temp. Substring (x-2,2)); }                Else{macaddress.append (temp. Substring (x-2,2) +"-"); } x-=2; }            returnmacaddress.tostring (); }        Catch        {            returnmacaddress.tostring (); }    }}

C # get computer information