F-SECURE CLIENT SECURITY 7.00, Administrator'S Manual, Page: 269 / 315

CHAPTER 13 269
3. Check that the DHCP address is a valid one. You can do this by
giving the command
ipconfig
in command prompt.
4. Next you should ping the default gateway.
If you do not know the address, you can find it out by issuing the
command
ipconfig -all
in command prompt. Then ping the default gateway to see if it
responds.
5. If normal Internet browsing does not work, you can try to ping a DNS
server.
6. Run nslookup to make sure that the DNS service is running.
7. You can also try to ping a known web address to make sure that the
computer in the other end is not down.
8. Next you should check whether something in the centrally managed
domain has been changed: is there a new policy in use and does this
policy contain some settings that might cause these problems?
9. Check from firewall rules that outbound HTTP connections are
allowed.
10. Check from the local application control that the IP address the user
tries to connect to has not accidentally been added to the list of
denied addresses.
11. If nothing else helps, unload F-Secure products or set the Internet
Shield to allow all mode. If even this does not help, it is likely that the
problem is in routing or in some other component in the computer the
user tries to connect to.
13.5 Adding New Services
Service, short for Network Service, means a service that is available on
the network, e.g. file sharing, remote console access, or web browsing. It
is most often described by what protocol and port it uses.