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oreilly, static linking & UEA meetings
by LxS 23 May '01

23 May '01

DF sparked my interest in system-stylee programming again, so I have a couple of questions: a) At the last UEA meeting, I heard ALUG had been offered a 25% O'Reilly discount. I thought, mmm, munch. Is this going to be honoured as an ALUG-library only option, or if I come up with a huge order can I route it thru ALUG? b) I'm trying to build and link against a static library: gcc -g -Wall -o libdog.o libdog.c ar rcs libdog.a libdog.o gcc -g -Wall -o sll.o sll.c ld -L. -ldog -o sll sll.o libdog.c: #includes void speak() { printf("Arf!\n"); } sll.c: #includes [extern] void speak(); int main(int argc, char** argv) { speak(); return 0; } The ld command warns me that it can't find a _start symbol, then wibbles about undefined symbol speak. It definitely finds libdog.a though (from -verbose), and nm libdog.a reports something very much like: libdog.a: 00000000 t Letext U printf 00000006 T speak I've tried it with and without extern. Given I figured out how to build & link shared libraries for JNI, on AIX, with only man pages, I'm feeling fairly annoyed at myself for not being able to do statics with a big book in front of me. Help! Finally, I might be able to help out with organising UEA ALUG meetings. Being a student, I go onto campus pretty regularly anyway. Mail me, MJR. Alexis -- http://www.ikitten.co.uk "C++ : an octopus made by nailing extra legs onto a dog" "Resolve first your body and mind, your private relationships and your public ones. The state will soon follow." - Confucian-esque "I find that the harder I work, the more luck I seem to have" - T Jefferson

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Re: [Alug] oreilly, static linking & UEA meetings
by MJ Ray 22 May '01

22 May '01

Adam Bower <abower(a)zeus.com> writes: > David Freeman wrote: > > a-1) Subscribe from the email address you wish to post, otherwise we > > have to auth your posts each time. > Unfortunatly, Mailman looks at the Sender: mail header which may not be > the same as your subscribed email address (especially in an enviroment > with multiple outgoing relays), This is correct behaviour, I believe. Others may like to comment *AFTER* reading the standards. > and as the sender header should point to mail relay where the > mail originally came from not a arbitarily defined one The sender header should point to a valid email address for the sender and preferably be in the canonical form for that address. Think of it as the reverse of envelope rewriting on the incoming feed. > (eg the sender header for this mail will point to > abower(a)pandora.zeus.co.uk which is a valid mail relay but my email > address is abower(a)zeus.com). Worst case if your mail server admin doesn't correct it: subscribe abower(a)pandora.etc and set it not to get email (nomail). -- MJR

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Help I need a new ISP
by Adam Bower 22 May '01

22 May '01

Hi all, I have just about to give up on Force9 as my ISP as they won't fix a problem I let them know about a week ago, so as It happens I need some help with picking a new ISP and I hope you guys may provide some advice! Anyway the following is what part of what I posted in alt.internet.providers.uk So the services I need are:- Hosting for my domain Dial-up Newsgroups Unix shell account (pref with ssh from anywhere) some Webspace (not a huge amount) No Traffic servers or web caches Decent service, I don't want anyone who is a fly-by-night, complete muppets, or likely to go bankrupt in the next five minutes. 0800 numbers would be nice, but I am about to go to Australia for a year so I would rather make sure they provide good access to my email from remote. I would currently be thinking of someone like Demon, but I have heard bad things about them recently so would like some more suggestions. Thanks Adam

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Fw: [Alug] Help I need a new ISP
by Dan Jones 22 May '01

22 May '01

</UNLURK> You could also look at http://www.ukshells.com for shell account - offers remote telnet, ssh, and telnet (on port 80 for those troublesome work firewalls) - Some boxes also have telnet on port 443 also ! We don't do dialup, and most customers use whoever is cheapest at the time (most use BTI at the moment).. Remote IMAP, ssh, webmail running on a SSL port (in beta with our 50 "testers" atm), POP3, PHP4, procmail access etc, all on our own 45Mbit ATM link here in the west midlands. Yes, I work there, and I moved from the alug region last year to work here full time late last year, although I'm back in Suffolk most weekends. We're stable, and have been selling shell accounts in the UK since 1996 (as redvan.net originally). Oh, I am on the birmingham LUG list, but its not as good as ALUG, although I have yet to attend an ALUG meeting (always busy on Sundays!) Regards Dan J <LURK> Adam Bower wrote: > > Hi all, > > I have just about to give up on Force9 as my ISP as they won't fix a > problem I let them know about a week ago, so as It happens I need some > help with picking a new ISP and I hope you guys may provide some advice! > > Anyway the following is what part of what I posted in > alt.internet.providers.uk > > So the services I need are:- > > Hosting for my domain > Dial-up > Newsgroups > Unix shell account (pref with ssh from anywhere) > some Webspace (not a huge amount) > No Traffic servers or web caches > Decent service, I don't want anyone who is a fly-by-night, complete > muppets, or likely to go bankrupt in the next five minutes. > > 0800 numbers would be nice, but I am about to go to Australia for a year > so I would rather make sure they provide good access to my email from > remote. > > I would currently be thinking of someone like Demon, but I have heard > bad things about them recently so would like some more suggestions. > > Thanks > Adam The shell account will be your problem, I think. Google now do newsgroups, see http://www.theregister.co.uk/content/6/19070.html I don't do dial-up (which won't help in Aus for a year), but I do the rest, and fit the rest of your criteria. I would consider a shell account, seeing as it's you, but you'd need to justify why you need it (no telnet, only ssh). Normally, there's no way I'd allow a shell account on one of my live systems. We run POP3, so remote access to email isn't a problem, and we're working on secure POP, and a web-based mail browser. I filter spam, adding to the access list daily as I receive it. Oh, and it's all on Linux. Usual charge is £100 pa. but I may be able to convince himself to offer an alug discount. Cheers, Laurie. PS. Zeus are doing a presentation at Adastral Park soon: will you be there? I will. -- --------------------------------------------------------------------- Laurie Brown laurie(a)brownowl.com PGP key at http://pgpkeys.mit.edu:11371 --------------------------------------------------------------------- _______________________________________________ alug, the Anglian Linux User Group list Send list replies to alug(a)stu.uea.ac.uk http://www.anglian.lug.org.uk/ http://rabbit.stu.uea.ac.uk/cgi-bin/listinfo/alug See the website for instructions on digest or unsub!

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Suggestion: Member's web space & SuSE contact change
by Martyn Drake 21 May '01

21 May '01

But I'd thought I would like to offer ALUG members 100Mb free web space (and free of any banners!) with a URL either hanging off of www.alug.org.uk or hostname.alug.org.uk. Stats provided. The only catch is please don't generate 10Gb of traffic per month, otherwise that'll cost me a small fortune :)) So no p0rn! :) The main ALUG site has actually moved from Webfusion to Rackspace where it's (a) cheaper, (b) more bandwidth available, (c) far better connectivity and (d) support actually have a clue if things go wibbly. Now, I've also received SuSE Professional 7.1 from the kind folk at SuSE and having finished using it myself (I'm now exploring the joys of Red Hat 7.1 and Mandrake 8.0). As I'm now leaving Norfolk permanently for the joys of Kingston Upon Thames in London, I'd like to forward this on to someone (as well as any future updates) so that it can be properly distributed as these days I can't make as many meetings as usual. That's my updates for this millenium. :) Regards, Martyn

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Re: [Alug] Configuring network card (again)
by Jenny_Hopkins＠toby-churchill.com 21 May '01

21 May '01

>>....and do insmod 3c5x9 Good grief! I did this and it showed the correct info. Strange, I thought, and proceeded to bring up the interface. This also suddenly is working. (hmmmmm) And eth0 is also showing in ifconfig. All I can think is that when i ran modconf I did two things - deleted the dummy0 module and tried installing the 3c509, the latter which just brought up errors yesterday. Perhaps restarting the computer and having no dummy0 in place caused the eth0 mod to do whatever it needed to do properly? Still not pinging anything on the network though. Pinging my own IP shows it is using loopback, and tcpdump then shows for trying to reach anything else on the network: 13:40:32.704186 eth0 > arp who-has jenny?TCL tell TRX850/TCL (0:a0:24:2:cf:26) 13:40:35.694822 lo > TRX850/TCL > TRX850/TCL: icmp: host jenny/TCL unreachable [tos 0xc0] Does this mean anything to anyone? Heff! Heff! A hoffable herralump! Thanks, Jenny. PS. Next time I splash out on the netgear.

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Weekly IRC meeting reminder
by Adam Bower 21 May '01

21 May '01

This is the automated ALUG irc meeting reminder sent to remind you that there is an irc meeting tonight (Monday) at 8.00pm. The meeting takes place on the irc server irc.openprojects.net in the #alug channel, you can take a look at www.openprojects.net to get more info on the openprojects network. Popular irc clients include tkirc, bitchx, xchat and ircII on Unix, and Mirc under windows. Here are some links to help you get started with irc. Unix http://www.bitchx.com http://www.xchat.org http://freshmeat.net http://www.epicsol.org/ (for Brett!) Windows http://www.mirc.com (loads of help with irc for newbies!)

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Re: [Alug] BTTV atlast
by MJ Ray 21 May '01

21 May '01

> > Can anybody tell me when the next meeting (in or around Norwich) > > will be please? I still need help persuading the network and sound > > devices in my machine to work. I was hoping for mid-June, but it seems that the May meeting is currently Missing In Action. Is it going to happen, or do we just go ahead and plan Yet Another Norwich Meeting for June 10th? For probably the penultimate time, I can arrange a room at UEA, but can anyone else (preferably from near Norwich) act as co-ordinator? It's quite a simple task, just keeping some lists of who's bringing what and who wants to see what, etc, and emailing us to move us along. History shows I'm very bad at it, though. -- MJR (PS: Today, David, I am going to be a muppet who can't tell his fs from his rs.)

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Re: [Alug] Configuring network card (again)
by David Freeman 20 May '01

20 May '01

--- Raphael Mankin <raph(a)panache.demon.co.uk> wrote: > > On 20-May-01 David Freeman wrote: > > > > --- Raphael Mankin <raph(a)panache.demon.co.uk> wrote: > >> In general, your primary net card should be compiled in and not a > >> module. You > >> can get away with it if you add to your conf.modules (or > >> modules.conf) a line > >> like > >> alias eth0 3c509 (or whatever the module is called) > >> The alternative is to ensure that an explciit modprobe is done for > >> the card > >> before you try to configure the network. Dig around in /etc/rc* to > >> find out > >> where to put it. > > > > Why should it be compiled in? surely this is a bad idea as every > time > > you change card you need to recompile the whole kernel. > [snip] > > In general, I agree with you, and that is fine for those who are hapy > with > doing all the tinkering that is necessary in places like > modules.conf. > Howver, newbies are likely to be bitten by this, and in the > particular case of > network cards, which need to have their modules loaded quite early in > the > startup sequence, it is easier to have them compiled in. Why? it means that it isn't as versitile and that you can only support a small number of cards compiled in. Its better to have one of the init scripts go and load the required modules, its not even difficult to write tool which will aid choosing the correct modules. That way you can just distribute modules as extras etc... To me it just makes sense. > I do exactly the same as you do in my Slackware system, and for the > same > reasons: I am forever swapping network cards around. However for > simple usage > stick to simple configurations; you are less likely to be bitten by > something > unexpected. Which requires a complex kernel recompile when you want to upgrade from 10Mbps to 100Mbps? Thanks D __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

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ALUG Librarian stuff
by brodders＠cwcom.net 20 May '01

20 May '01

This is a repost as the original didn't seem to turn up - or if it did, no - one commented! ======================================================== ALUG Librarian and Security stuff Hi. Been thinking over things and have some thoughts re Librarian & Security. Librarian ========= Who volunteers for this? The Librarian has to be present at all meets and must oversee all returns / loans, maintain the database, fixe occasional errors, chase people for overdues, carry out stocktakes - and bring the current ALUG stock with them to every meet in case a loan is wanted. May need a truck. I don't like this - would you do it? - so I've been kicking around the idea of allowing casual person-person item passing. These need to be verified transactions on the database otherwise fraud is simple. The protocol I suggest below is - good enough?? Comments appreciated. What I've got is: Stock items are scattered i.e. held by who-ever-has-them-right-now. A potential borrower searches the library database and discovers Item X. They request Item X. The database sends an email to the current holder saying to bring Item X to the next meet. The database generates a random "release key" for the trade and emails it to the requestor. Eventually Item X and the release key change hands. The old holder enters the release key into the database and the transaction is verified. Kicker: Until the release key is in & verified the old holder is responsible for Item X; responsibility gets passed to the new borrower by entering the key. Further, requests for popular items can be stacked (that's the idea behind having requests as transactions; these can be ordered by item / time sequence making a request stack - as well as other very useful life-history stuff). Is this adequate?? There is still a need for a librarian - but the job is much less onerous, for it frees them from compulsory attendance, involvement in every transaction & removes the "drag-the-stock-about" problem. Also, an item swap is not geographically limited to a meet - could be down a local pub etc. Again please kick holes in it people! Security ======== Other than people hacking in and diddling the transactions database, items database etc to generally kill the system there is a security issue over the names & addresses and account passwords. I want to encrypt the lot; ideally the entire database. And the transactions from server to client must be secure too otherwise login accounts get compromised. This is a job for an expert. I can get the database functional - but I would not put the system live in unencrypted form. Also does this complicate backup/restore/maintenance? Ill databases are tricky; an ill, encrypted database might be quite irrecoverable & un-de-encryptable. Security Expert Needed! Steve

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