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61.
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For a graphical walkthrough of basic Gufw usage, see the <ulink url="https://help.ubuntu.com/community/Gufw">Ubuntu Community Documentation page on <application>Gufw</application></ulink>.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:136(para)
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62.
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Testing the firewall and monitoring network traffic
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:140(title)
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63.
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To test the firewall it is best to scan it from a second computer. A popular application to use is called <application>nmap</application>.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:141(para)
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64.
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nmap
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:144(application)
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65.
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Run:
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:147(para)
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66.
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nmap -vAPN 192.168.1.100
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:148(command)
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67.
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Substitute the IP address of the computer you want to scan for <emphasis>192.168.1.100</emphasis>.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:149(para)
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68.
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To see what services are associated with the open ports, run:
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:152(para)
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69.
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lsof -i -n -P
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:153(command)
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70.
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You can also make use of an online firewall testing service such as <ulink url="http://www.grc.com/">ShieldsUP</ulink>.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:156(para)
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