10-07-2005
But the problem is
im at PC 1, and cant send UDP to the gate to get out externally:
PC1 --- Network (UDP dropped)---GATE------(no Drops)-------WWW
I have SSH access to GATE which is a unix system, but still UDP packets dropped on way there.
maybe that's better explained
imma quite newb at terminology
10 More Discussions You Might Find Interesting
1. Solaris
Hi,
I have tried the following:
on PC1 (win xp) I have created ssh connection with port forwarding
(local 8888 to remote 8888) to server1.
>From server1 I have created another ssh connection with port
forwarding to server2(local 8888 to remote 1521).
When I try to connect to oracle... (3 Replies)
Discussion started by: goran00
3 Replies
2. UNIX for Advanced & Expert Users
Hi all
question -
there are 2 servers A + B. server A is connected to the internet and running a squid proxy server - server B is behind a firewall. I can ssh from A to B but not from B to A. I need internet access on B to update some files. I thought I could use some sort of ssh tunnel to... (1 Reply)
Discussion started by: silvaman
1 Replies
3. Filesystems, Disks and Memory
Hello Folks,
Im trying to pass the NFS Shared data through the SSH tunnel. Following are the Steps for my Executions:
A) Commands Executed on Server (NFS Server + SSHD Server running)
i) share -F nfs -o rw=<NFS Server IP> /home
ii) Start the NFS Server Services and SSHD Services.
... (3 Replies)
Discussion started by: ImpeccableCode
3 Replies
4. Infrastructure Monitoring
Performing UDP tunneling through an SSH connection
Found this while looking for a way to temporarily forward SNMP requests across otherwise disconnected networks. Might be useful for someone else, too. (1 Reply)
Discussion started by: pludi
1 Replies
5. UNIX for Dummies Questions & Answers
So this seems like something that should be simple...but I can't quite seem to get it up and running. I have a machine, .107 with a GUI on port 8443. The problem is that I can't connect directly to .107 from my laptop. Now I have another machine, .69 that can connect to .107. So shouldn't I be able... (4 Replies)
Discussion started by: DeCoTwc
4 Replies
6. IP Networking
Hi Guys
I'm newbie here, so how are You.
I have 3 servers, but only 1 I can access directly from my computer and my network, here is the diagram :
PC SSH Connect (22) -- (3338) 192.168.1.1 --- (22) Serv1 --- (22) Serv2 --- (22) Serv3 ... (0 Replies)
Discussion started by: AdziE
0 Replies
7. UNIX for Advanced & Expert Users
Hi!
I came to know about SSH Tunneling to bypass the Firewall.
I will have to setup a free access SSH server to tunnel data access through PUTTY or OpenSSH.
The problem is that I don't know about any free access servers.
So, can anyone of you guide me for that, for any type of help? (1 Reply)
Discussion started by: nixhead
1 Replies
8. UNIX for Dummies Questions & Answers
I have googled a bit but i think I don't know if I am even looking in the right places.
The following I want to achieve and I don't even know if it is possible.
If I write a web application I can view in my web-browser (on the localhost). But eventually if I want to upload it to a server... (1 Reply)
Discussion started by: kevincobain2000
1 Replies
9. UNIX for Dummies Questions & Answers
I want to perform ssh tunnelling for which I have been using PuTTy. Config is as follows:
Host IP: 172.XX.XX.111Port: 22Tunnel setting source port: 19005Destination: 172.XX.XX.40:1521After entering my user ID and password, I am able to see in my command prompt that 127.0.0.1:19005 is listening.... (1 Reply)
Discussion started by: aakashsoor
1 Replies
10. Shell Programming and Scripting
I have a process running on my local server.
http://dev.techx.com:6060/proct
I wish to block port 6060 and expose port 7777 to the outside world.
I block port 6060 and open port 7777 on the firewall.
What should be the PuTTY Settings -> Connection -> SSH -> Tunnels
1. Destination ... (3 Replies)
Discussion started by: mohtashims
3 Replies
udp(4p) udp(4p)
Name
udp - Internet User Datagram Protocol
Syntax
#include <sys/socket.h>
#include <netinet/in.h>
s = socket(AF_INET, SOCK_DGRAM, 0);
Description
UDP is a simple, unreliable datagram protocol that is used to support the SOCK_DGRAM abstraction for the Internet protocol family. UDP
sockets are connectionless and are normally used with the and calls, though the call can also be used to fix the destination for future
packets (in which case the or and or system calls may be used).
UDP address formats are identical to those used by TCP. In particular, UDP provides a port identifier in addition to the normal Internet
address format. Note that the UDP port space is separate from the TCP port space (for example, a UDP port may not be ``connected'' to a
TCP port). In addition broadcast packets can be sent (assuming the underlying network supports this) by using a reserved ``broadcast
address''; this address is network interface dependent. The SO_BROADCAST option must be set on the socket for broadcasting to succeed.
Diagnostics
A socket operation may fail with one of the following errors returned:
[EISCONN] Try to establish a connection on a socket which already has one, or when trying to send a datagram with the destination
address specified and the socket already connected.
[ENOTCONN] Try to send a datagram, but no destination address is specified, and the socket has not been connected.
[ENOBUFS] The system runs out of memory for an internal data structure.
[EADDRINUSE] An attempt is made to create a socket with a port that has already been allocated.
[EADDRNOTAVAIL]
An attempt is made to create a socket with a network address for which no network interface exists.
See Also
getsockopt(2), send(2), socket(2) recv(2), intro(4n), inet(4f)
udp(4p)