netstat

event handler to detect changes in netstat data

I know .net allows a method to detect if your network IP has changed via System.Net.NetworkInformation. I would like to be able to detect changes to the number of TCP or UDP connections to a computer. So instead of scraping the IP end points every x seconds I want the system to notify me of new connections or dropped connections. Are t...

netstat command on a server (winform application)

Hello, I'm looking for how to recorgnize some server (windows in my case) network configuration (information we obtain using netstat dos command). I have the login and password of the target (server), and I developp with visual studio 2005 (c# or vB.NET doesn't matter). (Can I use WMI for that ???) Regards, ...

Find application using port

I have a networking program setup that does a lot of what the nestat program does. I am working now on netstat -o. That command will give me the PID of the program using that socket. I have some idea of where to look. I have been trying to use WMI to get that information but so far I have not found a suitable class. How can I find th...

Windows: "netstat -e" for a specific adapter

In Windows, I want to get the statistics similar to that dumped out by "netstat -e". This commands spits out the data (bytes in & out) for all the adapters. How can I get similar information but for a specific adapter. Say if I have two adapters & both are connected, how can I specify (either using netstat or something else) to give me t...

Netstat -s value interpretation

Hey everybody! I was checking netstat -s because every now and then in /var/log/message I get the famous "possible SYN flooding on port XX. Sending cookies"... And I see this value: XXXX resets received for embryonic SYN_RECV sockets What this value means? Thanks in advance! ...

trying to pass from hex(base 16) to dec to ip6 /proc/net/tcp6

Hi, im reading the content of the file /proc/net/tcp6 and trying to transform that notation of ip6 into a '0::1' like previously with ipv4 y use the next method. struct sockaddr_in tmp_ip; char ip_str[30]; char ipex[]='00000AF0'; /*read from the file /proc/net/tcp */ tmp_ip.sin_addr.s_addr=(int)strtoll(ipex,NULL,16); inet_ntop(AF_IN...

postgres connections exceeding max_connections?

we are running a very connection-heavy, insert-heavy postgres database (to the point that we should've done some connection pooling, but there's no time now). when doing some troubleshooting, i was using netstat to show me how many connections there were to postgres. i would commonly see more than what i had specified in the postgres.c...

Extract IP from netstat output

The netstat output contains thing like... tcp 0 0 0.0.0.0:80 221.126.149.99:51973 ESTABLISHED 23879/apache2 tcp 0 0 0.0.0.0:80 66.249.68.154:40883 ESTABLISHED 23899/apache2 tcp 0 0 0.0.0.0:80 66.249.68.81:41200 ESTABLISHED 23892/apache2 tcp 0 0 0.0.0.0:80 ...

Debugging IDE's port connection to XDebug: "Waiting to Connect"

Preamble Like many, I've spent more hours debugging my IDE’s connection to XDebug than I have using XDebug to debug my programs. I’ve gotten it to work repeatedly, but every once and a while I get the common “Waiting to connect” problem. I haven’t been able to localize what causes XDebug to work or fail. I’ve been using ubuntu for two y...

What does "Can not obtain ownership information" in Netstat -ab mean?

(Windows 7 x86) If I run "netstat -ab", I get a list of active connections, along with the names of the applications which have opened the connections. However, some connections (including the one opened by my app) are listed as "Can not obtain ownership information". Why? Thanks, Darren. ...

How do I access netstat data in Python?

I'm trying to need to access/parse all outgoing connections on a particular port number on a Linux machine using a Python script. The simplest implementation seems to be to open a subprocess for netstat and parse its stdout. I imagine someone somewhere has had this problem before, and am surprised not to find any netstat parsers online....

Netstat on Nexus one?

Hello, Im trying to run the netstat command on nexus one, its returning empty entries: Proto Recv-Q Send-Q Local Address Foreign Address State can anyone help me figure out this problem? thanks! ...

How to do like "netstat -p", but faster?

Both "netstat -p" and "lsof -n -i -P" seems to readlinking all processes fd's, like stat /proc/*/fd/*. How to do it more efficiently? My program wants to know what process is connecting to it. Traversing all processes again and again seems too ineffective. Ways suggesting iptables things or kernel patches are welcome too. ...