Talk:Linux System Administration class

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we might take a look at these links for the iptables discussion:


re ssh tunnelling -

also see

... don't know if this is as good as Daniel's, but there is also LLTHW's Exercise 27 and its Extra Credit links through . YMMV though.


random tangent (cf windows more than linux) - interesting bootkit info:

There is a good addendum to Jim's net_config writeup that better explains why 10.x.x.x and 192.168.x.x networks are often used internally. It's entitled 'RFC 1597 - Address Allocation for Private Internets (RFC1597)' and its webpage is

The most interesting section here is the one starting with

The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private networks:        -      -     -