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Home > All Categories > isCOBOL General > When can I get the " Permission denied:connect" message? And how can it be avoided?
Question Title When can I get the " Permission denied:connect" message? And how can it be avoided?
The " Permission denied: connect" exception message may happen when you are working in Application Server or with a client/server environment via VPN connection and you are using Java 7.

The reason is that isCOBOL uses the IPv4 type of sockets and Java 7 brings support for IPv6 sockets on Windows.
So, when you attempt to connect to an IPv4 address then "behind the scenes" it will use an IPv4-mapped IPv6 address.
And if the VPN product doesn't support the IPv6 sockets this exception will happen.

For example, if you want to connect via thin-client and you use any of the following commands:

iscclient -hostname host -port port progname
java com.iscobol.gui.client.Client -hostname host -port port progname

Or if you want to access the Veryant UDBC server started on the server machine and you run the command:

visql -cstring jdbc:veryant:udbc-server-ip:udbc-server-port:database -u user
To solve this problem you have to use the java property
iscclient com.iscobol.gui.client.Client -hostname MAIN_PROGR
java com.iscobol.gui.client.Client -hostname MAIN_PROGR
visql -cstring jdbc:veryant: -u admin
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Article Number: 197
Created: 2013-02-14 10:53 AM
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