[RouterOS@ROSABC] > ip service
[RouterOS@ROSABC] /ip service> prin Flags: X - disabled, I - invalid
# NAME PORT ADDRESS CERTIFICATE
0 telnet 23 0.0.0.0/0
1 ftp 21 0.0.0.0/0
2 www 80 0.0.0.0/0
3 X www-ssl 443 0.0.0.0/0 none
4 X api 8728 0.0.0.0/0
5 winbox 8291 0.0.0.0/0
[RouterOS@ROSABC] /ip service>
[RouterOS@ROSABC] ip service> set www port=8081 address=10.10.10.0/24
[RouterOS@ROSABC] ip service> print
Flags: X - disabled, I - invalid
# NAME PORT ADDRESS CERTIFICATE
0 telnet 23 0.0.0.0/0
1 ftp 21 0.0.0.0/0
2 www 8081 10.10.10.0/24
3 X www-ssl 443 0.0.0.0/0 none
4 X api 8728 0.0.0.0/0
5 winbox 8291 0.0.0.0/0
[RouterOS@ROSABC] ip service>