tcpSocket.address

General
1

When setting a tcpSocket address, I was wondering if it accepts sub-domain type addresses?

Example:

myTcpSocket.address = “dev.myserver.com”

The reason I ask is because I can’t get it to connect this way, but if I put the IP in (such as myTcpSocket.address = “199.199.199.199”) then it works. When I PING the “dev.myserver.com” from the command-line in windows, the same IP address I use to connect comes back with the reply. Anybody have any ideas?

2

It seems TCPSocket.Address only accept IPs. Have you considered the use of LookupIPAddress ?:

myTcpSocket.address = System.Network.LookupIPAddress("dev.myserver.com")
3

Didn’t even know about the lookUpIpAddress function… tried it, and it worked like a champ. Thanks, Guy!

4

if I remember correctly the address property will accept whatever DNS can lookup, so it does the lookup internally.

5

myTcpSocket.address does take DNS names and if your OS resolves the name to an IP it works fine.

6

I use DNS names all the time. As long as the name can be resolved it should work

7

Sometimes I need to query specific DNS servers from Windows 7/8 client. The lookUpIpAddress function doesn’t have that option.

As a workaround I do this:

[code] Dim s As Shell = New Shell

Dim setDNS, unsetDNS as string
setDNS = “netsh interface ip set dns “+ “”“Wireless Network Connection”””+" “+ “static 8.8.8.8”
unsetDNS = “netsh interface ip set dns “+ “”“Wireless Network Connection”””+” "+ “static 192.168.1.254”
s.Execute(setDNS)

dim ip as string = System.Network.LookupIPAddress(“forum.xojo.com”)
MsgBox(ip)

s.Execute(unsetDNS)[/code]