HP EliteBook 820 G1 Notebook PC User Manual
Page 65
There are two types of firewalls to consider:
●
Host-based firewalls—Software that protects only the computer it is installed on.
●
Network-based firewalls—Network-based firewalls are Installed between the computers on the
network and the connection to the Internet. Network-based firewalls can be dedicated devices or
devices such as routers or switches with firewall capability.
When a firewall is installed on a system, all data sent to and from the system is monitored and
compared with a set of user-defined security criteria. Any data that does not meet those criteria is
blocked.
Your computer or networking equipment may already have a firewall installed. If not, firewall software
solutions are available.
NOTE:
Under some circumstances a firewall can block access to Internet games, interfere with
printer or file sharing on a network, or block authorized e-mail attachments. To temporarily resolve the
problem, disable the firewall, perform the task that you want to perform, and then reenable the
firewall. To permanently resolve the problem, reconfigure the firewall.
1.
To view or modify the firewall settings, select Computer > YaST.
NOTE:
When accessing YaST, you are prompted for the root password.
2.
In the left pane, click Security and Users, and then click Firewall in the right pane.
NOTE:
When modifying firewall settings, you are prompted for the root password.
Using firewall software
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