Solaris firewalls with IPfilter
IPfilter  can be used to construct firewalls (or just to filter and/or log packets) on all supported
operating systems, which includes Solaris. I’ve installed ipfilter on roswell.sdsu.edu with
the configuration given below. Note that no packets are currently being blocked, just logged. My plan is run this for several days to “tune” it and then convert it to block unwanted packets. My concerns for tuning include udp services, passive ftp connections, and web servers not included below. If you …

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