To return expected results, you can:
Reduce the number of search terms.
Each term you use focuses the search further.
Check your spelling.
A single misspelled or incorrectly typed term can change your result.
Try substituting synonyms for your original terms.
For example, instead of searching for "java classes", try "java training"
Did you search for an IBM acquired or sold product ?
If so, follow the appropriate link below to find the content you need.
The utility
netcat
can be used to ascertain if a particular TCP or UDP port is open between two endpoints. This can be extremely useful for determining whether a connection can be made between an Aspera client and server.
Obtaining netcat
Windows: Download from
http://joncraton.org/media/files/nc111nt.zip
(password for the archive is "nc")
Linux/Unix: Install netcat from your usual package manager for example with CentOS:
yum install netcat
Instructions
Ensure
netcat
is available on both computers you are testing with.
First, set up one computer to be the "listener" listening on a specific port. Then try to connect to the listening computer on the same port from the other computer.
STEP 1
Connect to both local and remote computer. Make sure the
netcat
files are present on both computers.
STEP 2
On your Aspera server open up a command prompt and navigate to the directory with
netcat
. Then type in:
nc -l -u -p 33001
-l means it should listen -u that it should use UDP and -p specifies the port.
STEP 3
Now try and connect from the remote machine. Open up a command prompt and navigate to the directory with
netcat
. Use the following command where
ip_address
is the IP address of your Aspera server:
nc -u ip_address 33001
STEP 4
If the connection was successful you can type something on the remote machine and will see the same echoed on the listening machine.
If the port is blocked you will be able to type something on the remote machine but you will not see anything appear on the listening machine.
STEP 5
(optional)
Try
netcat
with a port you know works and is open just for verification. For example to test TCP/33001:
nc -l -p 33001 # on the listening servernc ip_address # 33001 on the remote machine
