Yes, this is a large building (900 units or so). Like I said, it is directly fed by the phone company, and has its own switching office for all the units in the basement. Greg On Mon, Dec 10, 2001 at 01:39:42PM -0500, Rich Caloggero wrote: > OK, maybe this makes more sense to me now... If your dealing with a large > building then the pipe which comes into the building better be "large > enough" to handle the entire building. This is most likely T1 or bigger > pipe. When dealing with phone lines coming into a house, for example, they > have already been branched off of the big trunk probably well before the > telephone pole on your block, and usually will only handle a few lines so > don't need to be very large in terms of band width. > > Rich > > ----- Original Message ----- > From: "Gregory Nowak" <gnowak1 at uic.edu> > To: <speakup at braille.uwo.ca> > Sent: Monday, December 10, 2001 11:15 AM > Subject: Re: some networking questions, I'm slightly confused > > > > As far as I know, the actual t1 line comes into the phone equipment which > is in the basement (in fact, the entire central > > switching office for this building is there). Then, as I understand it, > the digital signals > > for the t1 ride on the same cat5 wires > > in this building as the phone signals. > > If you just want to plug a phone in, you don't need anything > > between it and the jacks which are all standard rj11. > > If you have the internet service, you plug this box into the rj11, > > and it has an rj45 on it which hooks up to your nic. > > Like I said, I'll try to find out exactly what this is called and how > > to get more info on it. > > Greg > > > > > > On Mon, Dec 10, 2001 at 06:19:18AM -0700, Darrell Shandrow wrote: > > > Hi Gregory, > > > > > > If it is a T1 line, it needs two pieces of equipment, which may actually > be > > > built into a single device. First, there is the CSU/DSU, which is like > a > > > modem for dedicated lines. It is not, of course, a modem, but that is > its > > > metaphorical function in the dedicated environment. It handles the line > > > coding, framing, signaling, etc. Then there is some kind of protocol > > > router. This is, of course, usually a router for the IP > > > protocols. Perhaps, the device you're talking about is a combo CSU/DSU > and > > > router; though I know of no such device manufactured by HP. > > > > > > Regards. > > > > > > At 08:32 PM 12/9/2001 -0600, you wrote: > > > >I'm not sure how it is possible, but it is. > > > >I can find out more details. > > > >This is not cable or dsl, it is t1. > > > >Greg > > > > > > > > > > > >On Sun, Dec 09, 2001 at 07:24:53PM -0500, Rich Caloggero wrote: > > > > > Gregory Nowak wrote: > > > > > >They're running t1 over here through this HP networking gizmo that > > > > > >plugs into the phone jack, and has an rj45 jack on it. > > > > > How is this possible? How can you run T1 over a phone line, unless > perhaps > > > > > it were some dedicated phone line, in which case its usually termed > DSL for > > > > > dedicated subscriber line. Normal phone lines just don't have the > bandwidth > > > > > to do this. I assume the other side of this box is a standard > ethernet > > > > port? > > > > > We have such a box here at my house: one end plugs into a cable > modem and > > > > > the other has 4 ethernet ports which go to each of four computers. > We all > > > > > thus share the same cable connection. Its awesome! > > > > > > > > > > Rich > > > > > > > > > > ----- Original Message ----- > > > > > From: "Gregory Nowak" <gnowak1 at uic.edu> > > > > > To: <speakup at braille.uwo.ca> > > > > > Sent: 06 December, 2001 10:52 PM > > > > > Subject: Re: some networking questions, I'm slightly confused > > > > > > > > > > > > > > > In kernel 2.4.16. > > > > > Greg > > > > > > > > > > > > > > > On Thu, Dec 06, 2001 at 07:56:42PM -0700, Darrell Shandrow wrote: > > > > > > Hi Gregory, > > > > > > > > > > > > On which Kernel version's source tree are you finding this > > > > information? I > > > > > > do not find it in 2.4.6. > > > > > > > > > > > > Thanks. > > > > > > > > > > > > At 08:44 PM 12/6/2001 -0600, you wrote: > > > > > > >I am trying to do something like serial line load balancing, but > with > > > > > nics. > > > > > > >It is described in > /usr/src/linux/Documentation/networking/bonding.txt > > > > > > >. > > > > > > >Greg > > > > > > > > > > > > > > > > > > > > >On Thu, Dec 06, 2001 at 07:11:14PM -0700, Darrell Shandrow wrote: > > > > > > > > Hi Greg, > > > > > > > > > > > > > > > > Hmmm, this talk about bonding I am not understanding... Are > you > > > > > trying to > > > > > > > > multihome with two different service providers? Please > advise; I'm > > > > > > > > apparently missing something. > > > > > > > > > > > > > > > > Thanks. > > > > > > > > > > > > > > > > At 12:17 PM 12/6/2001 -0600, you wrote: > > > > > > > > >Yes, sort of. > > > > > > > > >I'll have to talk to the guy running the service here when he > gives > > > > > me my > > > > > > > > >second > > > > > > > > >connection, and see if I'll get another ip address or not, > and if he > > > > > > > knows > > > > > > > > >if his router will support bonding. > > > > > > > > >Greg > > > > > > > > > > > > > > > > > > > > > > > > > > >On Wed, Dec 05, 2001 at 10:00:36PM -0700, Darrell Shandrow > wrote: > > > > > > > > > > Hi Greg, > > > > > > > > > > > > > > > > > > > > Good deal; I'll be glad to do what I can to help, > especially with > > > > > a > > > > > > > > > > specific implementation. Did you get your answers > regarding the > > > > > > > two NICs > > > > > > > > > > and the outside addressing? > > > > > > > > > > > > > > > > > > > > Regards. > > > > > > > > > > > > > > > > > > > > At 09:56 PM 12/5/2001 -0600, you wrote: > > > > > > > > > > >Thanks for the info even though I knew 99% of that. > > > > > > > > > > >I will be in touch if I need more help. > > > > > > > > > > >Again, thanks for a very good explanation (it's certainly > better > > > > > > > then I > > > > > > > > > > >could've done (grin)). > > > > > > > > > > >Greg > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >On Wed, Dec 05, 2001 at 08:19:57PM -0700, Darrell > Shandrow > > > > wrote: > > > > > > > > > > > > Hi Greg, > > > > > > > > > > > > > > > > > > > > > > > > I have stayed out of this until now because I haven't > really > > > > > had > > > > > > > > > any time > > > > > > > > > > > > to respond properly. My days are usually quite long > > > > > > > > > lately. Anyhow, I am > > > > > > > > > > > > a sys admin for a regional ISP; perhaps, I can help > you. > > > > > > > > > > > > > > > > > > > > > > > > A domain is registered through a registrar like > Network > > > > > > > Solutions or > > > > > > > > > > > > register.com. When the domain is registered, part of > the > > > > > required > > > > > > > > > > > > information includes the IP addresses for the primary > and > > > > > > > secondary > > > > > > > > > name > > > > > > > > > > > > servers. This information is then added to what are > known as > > > > > > > the root > > > > > > > > > > > > servers, which tell the entire world which primary and > > > > > > > secondary name > > > > > > > > > > > > servers know how to answer lookup questions about your > > > > domain. > > > > > In > > > > > > > > > other > > > > > > > > > > > > words, the root servers delegate authority to the > specified > > > > > > > primary and > > > > > > > > > > > > secondary name servers to answer questions concerning > your > > > > > domain > > > > > > > > > > > > name. You could run one or both of these name servers > > > > > yourself > > > > > > > or have > > > > > > > > > > > > someone else do DNS. It sounds like you are having > someone > > > > > else do > > > > > > > > > > > primary > > > > > > > > > > > > and secondary DNS. As I'm sure you already know, DNS > is the > > > > > > > domain > > > > > > > > > name > > > > > > > > > > > > system, which points domain names to IP addresses, and > which > > > > > > > allows > > > > > > > > > us to > > > > > > > > > > > > do neat things like browse to www.foxnews.com and send > > > > mail to > > > > > > > > > > > > nu7i at azboss.net instead of having to know all kinds of > awful > > > > > IP > > > > > > > > > addresses > > > > > > > > > > > > just to perform the simplest of functions on the > Internet. > > > > > So, > > > > > > > DNS > > > > > > > > > points > > > > > > > > > > > > a domain name to an IP address, but how does it work? > DNS > > > > > > > information > > > > > > > > > > > > about a domain name is handled by name servers in the > form of > > > > > zone > > > > > > > > > > > > files. Your domain exists as a zone file on the > primary name > > > > > > > > > server, and > > > > > > > > > > > > the secondary name server is usually set up as a slave > to the > > > > > > > > > primary. In > > > > > > > > > > > > other words, the secondary name server gets its > information > > > > > > > (the zone > > > > > > > > > > > file) > > > > > > > > > > > > from the primary name server and holds onto it, just > in case > > > > > the > > > > > > > > > primary > > > > > > > > > > > > name server is unavailable for some reason. The > domain name > > > > > > > system is > > > > > > > > > > > > really a very large, world wide distributed database. > A > > > > > domain > > > > > > > name > > > > > > > > > > > > contains various types of information which is managed > in the > > > > > > > form of > > > > > > > > > > > > various types of records. The first type of record is > SOA, > > > > > which > > > > > > > > > stands > > > > > > > > > > > > for start of authority. This just specifies your > primary and > > > > > > > secondary > > > > > > > > > > > > name servers. You see, if things were set up a > certain way, > > > > > your > > > > > > > > > primary > > > > > > > > > > > > and secondary name servers could actually delegate > authority > > > > > > > for your > > > > > > > > > > > > domain to still other name servers, but this is not > common > > > > > > > > > > > > practice. Another important record type is the A > record. > > > > > This > > > > > > > is the > > > > > > > > > > > > address record, and your domain could have multiple A > > > > records, > > > > > > > > > > > depending on > > > > > > > > > > > > how many subdomains you have set up. For example my > domain > > > > > name > > > > > > > > > servers > > > > > > > > > > > > have an A record for shandrow.com which points to > > > > > > > > > > > 206.124.184.77. There is > > > > > > > > > > > > also another A record for borg.shandrow.com, a > subdomain, > > > > > which > > > > > > > also > > > > > > > > > > > > happens to point to the same IP address, though it > could just > > > > > > > as easily > > > > > > > > > > > > point to another IP address. Another somewhat related > record > > > > > > > type is a > > > > > > > > > > > > CNAME, which stands for canonical name. These records > are > > > > > used > > > > > > > like > > > > > > > > > > > > aliases to point subdomains to other domains. For > example, I > > > > > > > did use a > > > > > > > > > > > > CNAME record to point www.shandrow.com to > shandrow.com, which > > > > > > > means it > > > > > > > > > > > also > > > > > > > > > > > > has the IP address 206.124.184.77. Yet another > important > > > > > record > > > > > > > > > type is > > > > > > > > > > > > the MX record. MX stands for mail exchanger. E-mail > > > > software > > > > > > > uses > > > > > > > > > these > > > > > > > > > > > > records when figuring out how to deliver e-mail on the > > > > > > > Internet. These > > > > > > > > > > > > records, numbered by priority, tell mail delivery > software > > > > > > > where mail > > > > > > > > > > > > should go when destined for a particular domain. For > > > > example, > > > > > my > > > > > > > > > first MX > > > > > > > > > > > > record priority for shandrow.com (which is MX 10) > points to > > > > > > > > > > > > borg.shandrow.com. That is ultimately pointing to the > > > > > Sendmail > > > > > > > server > > > > > > > > > > > > which runs on the IP address 206.124.184.77. But, > again, > > > > this > > > > > > > > > could have > > > > > > > > > > > > just as easily pointed to any Sendmail server which > was > > > > > > > configured to > > > > > > > > > > > > accept and deliver mail for the shandrow.com domain. > > > > > Additional MX > > > > > > > > > > > records > > > > > > > > > > > > can be defined so that, if the server specified in the > first > > > > > > > > > priority MX > > > > > > > > > > > > record is unavailable for some reason, mail delivery > software > > > > > will > > > > > > > > > try a > > > > > > > > > > > > second, third, fourth and so on server until it can > deliver > > > > > the > > > > > > > > > mail. I > > > > > > > > > > > > could, if configured properly, have a MX 20 pointing > > > > > shandrow.com > > > > > > > > > to yet > > > > > > > > > > > > another Sendmail server, which would be able to > receive mail > > > > > for > > > > > > > > > > > > shandrow.com in the absence of the primary mail > server. > > > > > > > > > > > > > > > > > > > > > > > > Finally, there is reverse DNS. This does the reverse > of the > > > > > > > domain > > > > > > > > > name > > > > > > > > > > > > system; it translates IP addresses back to domain > names. You > > > > > > > > > definitely > > > > > > > > > > > > want to have your DNS administrator set this up for > your > > > > > domain, > > > > > > > > > because > > > > > > > > > > > > certain FTP sites, web sites and other types of > services on > > > > > the > > > > > > > > > Internet > > > > > > > > > > > > use reverse DNS information for security purposes; > they want > > > > > to > > > > > > > see > > > > > > > > > that > > > > > > > > > > > > your forward DNS and reverse DNS point to the same > place, or > > > > > they > > > > > > > > > may also > > > > > > > > > > > > want to verify that you have a domain which is or is > not > > > > > > > registered > > > > > > > > > in a > > > > > > > > > > > > certain part of the world. In my example, performing > a > > > > > > > nslookup on > > > > > > > > > the IP > > > > > > > > > > > > address 206.124.184.77 will tell you that it reverses > to > > > > > > > > > > > borg.shandrow.com, > > > > > > > > > > > > which is a valid subdomain pointing to that same IP > address. > > > > > > > > > > > > > > > > > > > > > > > > Anyhow, this will either help you or confuse you. > Please let > > > > > me > > > > > > > > > know if I > > > > > > > > > > > > can help you with specifics. > > > > > > > > > > > > > > > > > > > > > > > > Regards. > > > > > > > > > > > > > > > > > > > > > > > > At 06:38 PM 12/5/2001 -0600, you wrote: > > > > > > > > > > > > >Well, I'll actually be running a mail server for the > > > > building > > > > > in > > > > > > > > > which > > > > > > > > > > > I live. > > > > > > > > > > > > >Instead of being regularly payed, my current > connection will > > > > > be > > > > > > > > > free, and > > > > > > > > > > > > >I'll get a second free connection > > > > > > > > > > > > >They're running t1 over here through this HP > networking > > > > gizmo > > > > > that > > > > > > > > > > > > >plugs into the phone jack, and has an rj45 jack on > it. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >The reason I'm asking about the dns stuff is because > > > > > > > > > > > > >when I told the guy that I've looked at the mail > admin docs, > > > > > > > and am > > > > > > > > > > > > >seriously considering running the server, > > > > > > > > > > > > >his response to me was: > > > > > > > > > > > > >"so, I'll need to get you a domain with primary and > > > > secondary > > > > > dns > > > > > > > > > > > servers." > > > > > > > > > > > > >I said yes to this, but am carious about how his dns > servers > > > > > > > will know > > > > > > > > > > > > >where I exist > > > > > > > > > > > > >since he didn't ask for the name of my box. > > > > > > > > > > > > >I guess when he tells me he's got things set up, > > > > > > > > > > > > >my first question to him will be, > > > > > > > > > > > > >"what name do the dns servers know my machine by?" > > > > > > > > > > > > > > > > > > > > > > > > > >He's macroslop licensed, but not meaning to brag, > > > > > > > > > > > > >I get the impression that I may know more then he > does > > > > > without a > > > > > > > > > license. > > > > > > > > > > > > > > > > > > > > > > > > > >In case some of you reading my post now are > remembering > > > > a few > > > > > of > > > > > > > > > my other > > > > > > > > > > > > >posts, I decided > > > > > > > > > > > > >that getting my own domain name wasn't worth it. > > > > > > > > > > > > >He said that I could run a small web server here if I > want. > > > > > So, I > > > > > > > > > don't > > > > > > > > > > > > >think he'd > > > > > > > > > > > > >have a problem with me running it as > http://mybox.domain. > > > > > > > > > > > > > > > > > > > > > > > > > >This whole thing started when I got my service, and > he came > > > > > > > here to > > > > > > > > > > > get it > > > > > > > > > > > > >all setup. > > > > > > > > > > > > >Not only was he impressed that I was the only one in > the > > > > > building > > > > > > > > > so far > > > > > > > > > > > > >running anything other then windblows, but that it > was > > > > Linux. > > > > > > > > > > > > >After my configuring tcp/ip both in windows and in > Linux > > > > > while > > > > > > > he just > > > > > > > > > > > > >watched me do it and gave me my ip address and all > the other > > > > > > > stuff, > > > > > > > > > > > > >I asked if I would get a mail account. > > > > > > > > > > > > >He said no, because there is no body to run one yet. > > > > > > > > > > > > >Then he tentatively asked if I would be willing to > > > > perhaps do > > > > > it, > > > > > > > > > I said > > > > > > > > > > > > >I'd read the mailadmin docs and think about it, > > > > > > > > > > > > >and you know the rest. > > > > > > > > > > > > > > > > > > > > > > > > > >He's also looking to hire someone to run apachee. > > > > > > > > > > > > >But, I'm not touching that for now (grin). > > > > > > > > > > > > >Sorry for the long and personal post, but since Geoff > asked, > > > > > > > > > > > > >I figured that some other people on this list may be > > > > > wondering > > > > > > > > > > > > >why I'm asking theese questions, some of which may > sound > > > > > > > > > > > > >dumb, but are for the most part so that I could make > sure > > > > > that > > > > > > > what > > > > > > > > > > > > >I know is actually correct. > > > > > > > > > > > > >Greg > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >On Thu, Dec 06, 2001 at 09:29:48AM +1000, Geoff Shang > wrote: > > > > > > > > > > > > > > On Tue, 4 Dec 2001, Gregory Nowak wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 1. Say there is a primary and secondary dns > servers > > > > on a > > > > > > > domain > > > > > > > > > > > > > called mydomain. > > > > > > > > > > > > > > > Say also that there is a machine called mybox. > > > > > > > > > > > > > > > Also, I have ip addresses for primary and > secondary dns > > > > > > > > > servers on > > > > > > > > > > > > > mydomain. > > > > > > > > > > > > > > > Assumming all of the above, and assuming that I > have > > > > > > > > > permission to > > > > > > > > > > > > > officially be on mydomain which is a valid internet > domain, > > > > > > > > > > > > > > > what do I do on mybox so that it would be > resolvable > > > > > > > > > > > > > > > as mybox.mydomain on the net? > > > > > > > > > > > > > > > > > > > > > > > > > > > > Nothing. It's the primary and secondary DNS > servers that > > > > > > > control > > > > > > > > > > > how your > > > > > > > > > > > > > > host is resolved, not your box. As long as mybox > has the > > > > > IP > > > > > > > > > > > address that > > > > > > > > > > > > > > ns1.mydomain.com and ns2.mydomain.com think it > has, you > > > > > > > should be > > > > > > > > > > > good to > > > > > > > > > > > > > > go. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 2. Say that I have to nics with 2 static ip > address for > > > > > the > > > > > > > > > outside > > > > > > > > > > > > > world. > > > > > > > > > > > > > > > How do I set things up so that my box would use > both > > > > > > > > > > > > > > > nics for outside access instead just either one > nic or > > > > > > > the other? > > > > > > > > > > > > > > > > > > > > > > > > > > > > As Chris said, what comes in where will depend on > what > > > > > > > address it > > > > > > > > > > > is sent > > > > > > > > > > > > > > to. What goes out where depends on a few things. > If you > > > > > > > want to > > > > > > > > > > > use one > > > > > > > > > > > > > > interface to access a particular host or network, > you can > > > > > > > set up a > > > > > > > > > > > route > > > > > > > > > > > > > > accordingly. If you want to access everything > with both, > > > > > you > > > > > > > > > might > > > > > > > > > > > be able > > > > > > > > > > > > > > to put 2 default routes (i've seen it done but > don't know > > > > > if it > > > > > > > > > > > works and > > > > > > > > > > > > > > if it's supposed to work). I saw you've been > looking at > > > > > > > > > bonding which > > > > > > > > > > > > > > might also work, but I don't know about it. > > > > > > > > > > > > > > > > > > > > > > > > > > > > Can I ask, why you have 2 NICs? Is it just to get > 2 > > > > > > > addresses or > > > > > > > > > > > are you > > > > > > > > > > > > > > connected to 2 networks? > > > > > > > > > > > > > > > > > > > > > > > > > > > > Geoff. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > > > > > > > Speakup mailing list > > > > > > > > > > > > > > Speakup at braille.uwo.ca > > > > > > > > > > > > > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > > > > > > > > >_______________________________________________ > > > > > > > > > > > > >Speakup mailing list > > > > > > > > > > > > >Speakup at braille.uwo.ca > > > > > > > > > > > > >http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > > > > > Speakup mailing list > > > > > > > > > > > > Speakup at braille.uwo.ca > > > > > > > > > > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > > > > >_______________________________________________ > > > > > > > > > > >Speakup mailing list > > > > > > > > > > >Speakup at braille.uwo.ca > > > > > > > > > > >http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > > > Speakup mailing list > > > > > > > > > > Speakup at braille.uwo.ca > > > > > > > > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > >_______________________________________________ > > > > > > > > >Speakup mailing list > > > > > > > > >Speakup at braille.uwo.ca > > > > > > > > >http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > > > Speakup mailing list > > > > > > > > Speakup at braille.uwo.ca > > > > > > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > >_______________________________________________ > > > > > > >Speakup mailing list > > > > > > >Speakup at braille.uwo.ca > > > > > > >http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > Speakup mailing list > > > > > > Speakup at braille.uwo.ca > > > > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > Speakup mailing list > > > > > Speakup at braille.uwo.ca > > > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > >_______________________________________________ > > > >Speakup mailing list > > > >Speakup at braille.uwo.ca > > > >http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > _______________________________________________ > > > Speakup mailing list > > > Speakup at braille.uwo.ca > > > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > > > > > > > > > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup
