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You can do it the router in the pocket way, tunnel through your schools wifi and have your own AP where you go, but that requires a decent less consumer type of router with advanced wireless.

Old hardware that would use too much resources on w7, no experience with Linux, preference etc.. WinXP won't die for a long time.

It would, however you should not get IP conflicts if you are connected to the same router unless someone has a statically set IP. Though i recommend you go with a switch since wired is better. Any unmanaged one will do.

You could run them all at once or at least 2 and have some breathing room left.

A source server doesn't require much metal to begin with, a Dual Core @ 2.66ghz with 2gb of ram will easily handle a source server + whatever overhead gmod provides. For FastDL to work you will need to host apache, nginx or lighthttpd whichever you prefer, this is going to be your main source of upload traffic and may cause lag if you don't have sufficient bandwidth, so i recommend moving this to a shared hosting or a VPS.

You can do it that's what networking is for. You also have a few options on how to do it you can make a LAN by using a switch to connect all the houses together and have an uplink from the switch to the ISP (though it needs to be a reasonably fast connection). You could could do it with routers running OSPF for the internal network and BGP to peer with a provider though in this sense you become an ISP. Copper cables reach 100m/330ft without signal loss so placement of equipment is important to avoid buying a ton of repeaters, fiber has a wider range of distances 500m-90km depending on the type's of modules used. Another way of doing this is daisy chaining the houses, running cable from house to house making it more of a tree pattern, however if a switch loses power and there are more houses connected to it those users will have no connection. You better have one common point of failure than a 100 small ones.

I do intend to make money with this, however little but it still counts as profit, does that restrict me to Xen, KVM then ?

Its a q6600 with 8gb of ram. Does RAID work with it ? I might throw 2*1tb in mirror mode.

Hey guys, i'm going to acquire a new server soon and im searching for a free virtualization tool. Ive looked into ESXi which is now called vSphere for some reason, its supposed to be free but what are the catches (CPU count, max ram etc...)? Id love to have a bare metal hypervisor to save on system resources. Maybe someone who has a virtual machines running can point me to the right direction. Oh and im going to run mostly Debian distros on it and maybe one or two Windows systems if that matters.

ADSL and Cable are technically limited so without having complex equipment in every home you can't deliver good upload speeds. Every at least decent switch is rated for full (2 * number of ports * switch speed) operation its your router that is the bottleneck. And guys really, saying things like you don't need it is what keeps the ISP's sitting and not doing anything rather than improving infrastructure to support higher rates.

Need more ports on your router ? Looked into switches, but you are confused with the naming ? Here are the types of switches you might encounter when shopping for one: Unmanaged or "dumb" switches. These types of switches do not have any user configurable options and are best suited for home users who wish to expand their network or just add extra ports to their router. These switches are ready to use out of the box. Smart switches. A tier down from managed ones, these switches offer the ability to configure some options like QoS and VLAN's via a web interface and are best suited for users who need a slightly tighter control over their network. Managed switches. A switch that offers even more features usually suited for enterprise users and large networks, these switches can often be stacked. A serial CLI interface is usually provided for management and configuration. Switches usually come in standard port number configurations 5,8,16,24,48 (Usable ports = number of ports - 1). I need to run ethernet cable, but i don't know what the Cat symbol on the wire means The "Cat" or category is a cable rating system and it tells the user how much the cable can handle in terms of speed and interference. Here are the most common categories you will encounter: Category 3 or Cat3 cable, is a very old standard that allows the wire to carry speeds up to 10mbps, it is no longer used for internet, but instead is still used for telephone wiring. Category 5e or Cat5e, the most common cable type right now, it can handle 100mbps and 1gbps speeds. Category 6 or Cat6 in addition to being able to handle more interference it can also handle 10gbps speeds, though at reduced distance. Category 7 or Cat7 or Class F cable is rated for full length 10gbps operation. All these cables (except Cat7) come in two types: STP (or FTP in EU) this is a shielded cable and UTP (unshielded cable). A maximum length of a ethernet cable is 330ft (100m), going further you risk signal degradation.

Unmanaged switch 8-16-24 ports how many you need, bunch of cat5 premade or you can make some yourself. Plug the switch into the router pc's to the switch and there you go instant LAN party.

Don't waste money on LACP it does not work the way you think, get a normal 16port non smart switch be it from TP-Link D-Link Cisco they are all good.

Its been around for some time already, you should be fine with cat6 if you can't get better. You can go about this using fiber with SFP+ modules instead of copper cabling, most if not all 10gig cards come with a SFP+ slot.

If you run Realtek integrated chips and you have problems then it might be a good idea to get a separate NIC. For a normal home user its a waste of money.

If you are new at this you can start off by running premade web server packs, search for LAMP (Linux) WAMP (Windows). Later on if you so desire you can switch out the heavy apache server for something lighter like nginx or lighthttpd.

With ubuntu you will need to mess around more to get your NAS working, but sooner or later you will get the hang of it. Use the no gui version you will learn linux much faster.

Maybe in 10-20 years, when 100gbit becomes mainstream on wired networks.

No it wont.

If someone wants to DDOS you "masking" your ip won't help.

Ethernet hubs are obsolete and no longer exist, however if you find one do us a favor and burn it.

Usually as far as switches are concerned both MAC's should get the same packet, there isnt much collision detection for MAC addresses. This could lead to IP conflicts in some cases. MAC spoofing or it is referred to as cloning on routers is the ability to change the devices MAC address to gain access on networks that provide service based on MAC's, there isn't really any harm in doing this as addressing by MAC is only used in L2 networks.

2GB is plenty enough to host a a few simple websites. Though this is a server so get some more ram 4-8gb if you ever intend to change its purpose. If your board has integrated Intel NIC then you wont need an add-on card, else Intel PRO series is the way to go especially when you get a mobo with realtek stuff on it.

The amount of crap you will face when installing pfSense on a virtual machine is not worth the effort + getting FreeNAS working with it. Just get a good consumer router instead.

As far as networking goes and CCNA you can apply for a course somewhere, take online ones, teach yourself from various sites and general networking. If you are a more hardware guy then you will need to spend some $ on cisco equipment (its not much don't worry) or you can use alternatives as such Packet tracer and GNS3.