SOLVED: change dicom port

[Pela Silveira]

hello,

when I change dcm4chee standard dicom port from 11112 to 104 the archive stop working. I reboot server in order to start all services again, but it stay down. The iu remains ok, but there is no other service online: hl7 server etc.

When i put back port on 11112 it start working again.

Do you know what could be the problem.

thank you very much

[Jon Ander Zuccaro]

Please attach your entire server log.

It is possible that the 104 port  is already in use by another application or that your user lacks permissions to bind to the 104 port (ports bellow 1024 can only be opened by root).

Don't run your server as root if that's the case!, Leave the default 11112 port and then do a simple port redirection from 104 externally to 11112 internally using iptables

[Pela Silveira]

You are right. I have changed to 11111 and it works.

Thanks!

[Pela Silveira]

here is the configuration i have made.

first i enable ipv4 forward 

edit  /etc/sysctl.conf and uncomment net.ipv4.ip_forward = 1

then I run  sudo sysctl -p

here is the command to enable port forwarding

sudo iptables -t nat -i ens160 -A PREROUTING -p tcp --dport 104 -j REDIRECT --to-port 11112

 

num  target     prot opt source               destination

1    REDIRECT   tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:104 redir ports 11112

[Jon Ander Zuccaro]

Looks good to me, the only thing that maybe is missing is the step to make the iptables changes permanent so they survive a reboot, I believe you need to use iptables-save, depends on your distro though so look it up.

Good luck.

[Pela Silveira]

yes you are right. thank you very much.