Configuring a DHCP Server
In my last article, we took a look at the DHCP client that comes with your FreeBSD system. This week, I want to move on to configuring a DHCP server. Unlike the built-in dhclient, your FreeBSD system does not come with DHCP server software. This is because you only need to configure a DHCP server if you want to lease out IP configuration for your own network.
Connecting to the Internet
There are several ways of connecting a home Linux box to the Internet: Digital Subscriber Line (DSL) service, cable modems, and dial-up connections with ISDN or analog modems. Each of these services has its own hardware and software requirements. This week's column shows where to get the latest Linux documentation for these services and how to set up and use a PPP ("Point-to-Point Protocol") dial-up connection -- long the de facto means of connecting a computer to the Internet over a dial-up line.
Connecting to the Internet Using PPP or a Cable Modem
Learn how to connect to the internet with FreeBSD, using either a standard or cable modem. Includes information on recompiling your kernel to activate COM ports.
DHCP on a Multi-Segment Network
So far in this series about DHCP I have demonstrated how to configure DHCP clients and a DHCP server for a single segment network. In today's article I'd like to finish the series by explaining how to use DHCP in a multi-segment network. While I happen to be concentrating on the ISC software on a FreeBSD system, DHCP is a standard protocol: regardless of your particular mix of operating systems and the software you use to provide DHCP, the logic behind configuring DHCP remains the same.
HTTP Proxies
In my previous article, I introduced some of the benefits to be gained by using a proxy. In today's article, I'd like to concentrate on HTTP proxies. We'll take a look at some of the HTTP proxies available in the ports collection and which proxies are suited for which needs.
Installing and Configuring Squid
What can Squid do for your site? Put Squid between the users and the Internet to cache your web pages. Users surf faster, HTTP traffic uses less bandwidth, and you can save on bandwidth fees -- or use the saved bandwidth for other traffic.
Introducing DHCP
In the next few articles, I'll be covering the DHCP protocol: how it works and how to configure a DHCP client and a DHCP server using FreeBSD. If you've ever connected a computer to a network, you've probably heard of DHCP, the Dynamic Host Configuration Protocol. As its name suggests, this protocol is designed to configure a host dynamically with the TCP/IP information it needs in order to communicate on a network. The alternative to dynamic addressing is static addressing. Static addressing occurs when you manually type in an IP address, subnet mask, and default gateway address. FreeBSD systems support both static and dynamic addressing. Typically, you would use static addressing to set up a small home network and dynamic addressing when you connect to the Internet.
IP Packets Revealed
In last week's article, we used the tcpdump utility to capture the packets involved in a telnet session and then examined the resulting dump file. This week, I'd like to continue through the output of this file to see what else we can discover regarding a typical TCP connection.
Networking with TCP/IP
This article explains the basics of TCP/IP networking and gives examples of how to use it on FreeBSD. This also makes great reading for Linux and other operating systems that utilize the TCP/IP networking stack.
Proxy Terminology 101
If you've ever accessed the Internet from an office
environment, chances are your communications passed through a
proxy. In the next few articles, I'll discuss the advantages of
using a proxy and demonstrate the configuration of several
proxies available from FreeBSD's ports collection. You may not
already know what a proxy does.
SMTP Proxies
In my previous article, I demonstrated the configuration of several HTTP proxies. In this article, I'd like to finish up the proxy series by concentrating on an example SMTP proxy.
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