vpn

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I am a newbie in hadoop, linux as well. My professor asked us to seperate Hadoop client and cluster using port mapping or VPN. I don't understand the meaning of such separation. Can anybody give me a hint? Now I get the idea of cluster client separation. I think it is required that hadoop is also installed in the client machine. When the client submit a hadoop job , it is submit to the masters of the clusters. And I have some naiive ideas: 1.Create a client machine and install hadoop . 2.set fs.default.name to be hdfs://master:9000 3.set dfs.namenode.name.dir to be file://master/home/hduser

I am using VPN, and thus if i check http://whatismyip.com it will give me different ip than $_SERVER['REMOTE_ADDR'] or getenv('REMOTE_ADDR') . whatismyip gives my original ip address while $_SERVER or getenv gives my VPN ip address !! is there anyway to get my original address ip using php in case that i am running VPN? and is there any way to get the PROXY IP address using PHP if i am using proxy also? Thanks No. Whatever PHP (rather the web server) returns is the address that the request was made from. There's no way for the script to know if you're behind a VPN or proxy. Try the following -

I want to create code which will create new connection with L2TP Protocol . below is my code. I didn't find any error but code run successfully and create new network but it's not showing data which i passes e.g username. - (IBAction)connectVPN_Cliced:(NSButton *)sender{ VPNServiceConfig *config = [[VPNServiceConfig alloc]init]; config.username = @"username"; config.password = @"password"; config.endpointPrefix = @"Server IP end prefix"; config.endpointSuffix = @"Server IP end endpointSuffix"; config.sharedSecret = @"sharedkey"; config.name = @"L2TP By Mac Application"; config.endpoint = @