From zanchey at ucc.gu.uwa.edu.au Mon Jul 4 23:48:08 2011 From: zanchey at ucc.gu.uwa.edu.au (David Adam) Date: Mon, 4 Jul 2011 23:48:08 +0800 (WST) Subject: [tech] Brave new wireless Message-ID: Tonight I finished configuring and installing the new wireless point, coromandel [1] to provide 802.11a/b/g/n connectivity to the clubroom and beyond. It is a D-Link DIR-825 with 2.4 & 5 GHz radios and five gigabit Ethernet ports. It has been reflashed to run OpenWRT 10.03.1-rc4 (r24045) with wpad-mini replaced with the full version of wpad/hostapd. It is configured to do VLANs 1, 6 (trusted wireless) and 8 (untrusted wireless) from the switch. All of the "internal" switch ports are configured for these VLANs, and VLAN 1 is untagged. The "uplink" port is not configured. It has an IP on VLAN 1 (coromandel.ucc.asn.au) which is on the UCC management VLAN. Coromandel is broadcasting the trusted wireless VLAN via the SSID 'UCC' on 2.4 GHz channel 3 & 5 GHz channel 149 with WPA2/RADIUS encryption. It is not currently broadcasting the UCC-Public SSID. RADIUS authentication & accounting is enabled & working, thanks to a small patch from newer versions of OpenWRT [2]. Clearwing (old 802.11b/g AP), which was previously broadcast both the UCC and UCC-Public SSIDs, has had the UCC SSID disabled & is still broadcasting UCC-Public on channel 11. Issues: - The management IP is not routed outside UCC, which means that `opkg` and friends don't work without a proxy server being set up. - I don't have any .11n or 5GHz devices, so I have no idea if that stuff actually works. - Enabling .11n forces us to disable WPA+WPA2 mixed mode in favour of WPA2-only. This makes some old devices like my laptop not work; I don't know if we care. - Setting up EAP/PEAP-MSCHAPv2 still requires manually accepting a certificate and (in Windows) requires a bunch of daft default settings to be disabled. Thanks to [AHC] for purchasing the new AP! [1]: http://www.fishbase.org/summary/Speciessummary.php?id=14292 [2]: http://patchwork.openwrt.org/patch/844/ David Adam UCC Wheel Member zanchey at ucc.gu.uwa.edu.au From mattman at ucc.gu.uwa.edu.au Mon Jul 11 21:45:55 2011 From: mattman at ucc.gu.uwa.edu.au (Matt Didcoe) Date: Mon, 11 Jul 2011 21:45:55 +0800 Subject: [tech] Napoli on Lion Message-ID: A gold master copy of Lion is running on Napoli so I can *cough* test it Things "work" as before. Enjoy. [MRD] From bob at ucc.gu.uwa.edu.au Tue Jul 12 22:32:12 2011 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Tue, 12 Jul 2011 22:32:12 +0800 (WST) Subject: [tech] Disks for Mylah Message-ID: Somehow we managed to miss the PE2650 that was sitting in the machine room full of 146G SCSI disks. I've put two of them in mylah and there's two spares. The raid on mylah is resyncing as I type, and I'll leave the two extra disks in the 2650. Andrew Adamson UCC President bob at ucc.asn.au |"The faster you move, the slower time passes, the longer you live." | | ---Peter's Laws | From bob at ucc.gu.uwa.edu.au Tue Jul 12 22:37:07 2011 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Tue, 12 Jul 2011 22:37:07 +0800 (WST) Subject: [tech] Disks for Mylah In-Reply-To: References: Message-ID: On second thoughts, I'll also stick one in mooneye as a hot spare. Andrew Adamson UCC President bob at ucc.asn.au |"The faster you move, the slower time passes, the longer you live." | | ---Peter's Laws | On Tue, 12 Jul 2011, Bob Adamson wrote: > Somehow we managed to miss the PE2650 that was sitting in the machine room > full of 146G SCSI disks. I've put two of them in mylah and there's two > spares. The raid on mylah is resyncing as I type, and I'll leave the two > extra disks in the 2650. > > Andrew Adamson > UCC President > bob at ucc.asn.au > > |"The faster you move, the slower time passes, the longer you live." | > | ---Peter's Laws | > From bob at ucc.gu.uwa.edu.au Tue Jul 12 22:44:43 2011 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Tue, 12 Jul 2011 22:44:43 +0800 (WST) Subject: [tech] Disks for Mylah In-Reply-To: References: Message-ID: On second second thoughts, mooneye already has a hot spare, so we're back to having two spares. Andrew Adamson UCC President bob at ucc.asn.au |"The faster you move, the slower time passes, the longer you live." | | ---Peter's Laws | On Tue, 12 Jul 2011, Bob Adamson wrote: > On second thoughts, I'll also stick one in mooneye as a hot spare. > > Andrew Adamson > UCC President > bob at ucc.asn.au > > |"The faster you move, the slower time passes, the longer you live." | > | ---Peter's Laws | > > On Tue, 12 Jul 2011, Bob Adamson wrote: > > > Somehow we managed to miss the PE2650 that was sitting in the machine room > > full of 146G SCSI disks. I've put two of them in mylah and there's two > > spares. The raid on mylah is resyncing as I type, and I'll leave the two > > extra disks in the 2650. > > > > Andrew Adamson > > UCC President > > bob at ucc.asn.au > > > > |"The faster you move, the slower time passes, the longer you live." | > > | ---Peter's Laws | > > > From bob at ucc.gu.uwa.edu.au Thu Jul 14 16:32:27 2011 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Thu, 14 Jul 2011 16:32:27 +0800 (WST) Subject: [tech] Broken Webcam Message-ID: Hi All, It looks like the Clubroom_SW camera is dead. I tested it by connecting it to the Machine_Room_SW psu and video (it's the same make and model) and it's not showing anything. It's technically still under warranty, but with the company being Hong Kong based and the camera being only $32, I'm not sure it's worth the effort of chasing it up. I assume we want to replace it, anyone know of a non-sucky, IR, under $50 camera? Andrew Adamson UCC President bob at ucc.asn.au |"The faster you move, the slower time passes, the longer you live." | | ---Peter's Laws | From bob at ucc.gu.uwa.edu.au Thu Jul 14 17:04:30 2011 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Thu, 14 Jul 2011 17:04:30 +0800 (WST) Subject: [tech] Broken Webcam In-Reply-To: References: Message-ID: Zoneminder seems to have pretty good support for ip cameras now, so we might even be able to go a little crazy and get something like http://www.ebay.com.au/itm/WIFI-IP-Network-Wireless-CCTV-Night-Vision-Camera-/270774513986 Who's keen? Andrew Adamson UCC President bob at ucc.asn.au |"The faster you move, the slower time passes, the longer you live." | | ---Peter's Laws | On Thu, 14 Jul 2011, Bob Adamson wrote: > Hi All, > > It looks like the Clubroom_SW camera is dead. I tested it by connecting it > to the Machine_Room_SW psu and video (it's the same make and model) and > it's not showing anything. > > It's technically still under warranty, but with the company being Hong > Kong based and the camera being only $32, I'm not sure it's worth the > effort of chasing it up. > > I assume we want to replace it, anyone know of a non-sucky, IR, under > $50 camera? > > Andrew Adamson > UCC President > bob at ucc.asn.au > > |"The faster you move, the slower time passes, the longer you live." | > | ---Peter's Laws | > From atyndall at ucc.asn.au Fri Jul 15 01:20:19 2011 From: atyndall at ucc.asn.au (Ash Tyndall) Date: Fri, 15 Jul 2011 01:20:19 +0800 Subject: [tech] Broken Webcam In-Reply-To: References: Message-ID: I am. On Thu, Jul 14, 2011 at 5:04 PM, Bob Adamson wrote: > Zoneminder seems to have pretty good support for ip cameras now, so we > might even be able to go a little crazy and get something like > > http://www.ebay.com.au/itm/WIFI-IP-Network-Wireless-CCTV-Night-Vision-Camera-/270774513986 > > Who's keen? > > Andrew Adamson > UCC President > bob at ucc.asn.au > > |"The faster you move, the slower time passes, the longer you live." | > | ---Peter's Laws | > > On Thu, 14 Jul 2011, Bob Adamson wrote: > > > Hi All, > > > > It looks like the Clubroom_SW camera is dead. I tested it by connecting > it > > to the Machine_Room_SW psu and video (it's the same make and model) and > > it's not showing anything. > > > > It's technically still under warranty, but with the company being Hong > > Kong based and the camera being only $32, I'm not sure it's worth the > > effort of chasing it up. > > > > I assume we want to replace it, anyone know of a non-sucky, IR, under > > $50 camera? > > > > Andrew Adamson > > UCC President > > bob at ucc.asn.au > > > > |"The faster you move, the slower time passes, the longer you live." > | > > | ---Peter's Laws > | > > > > -- Ash Tyndall [ASH] 2011 Fresher Rep -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.ucc.gu.uwa.edu.au/pipermail/tech/attachments/20110715/9c3c6485/attachment.htm From matt at didcoe.id.au Fri Jul 15 08:27:54 2011 From: matt at didcoe.id.au (Matt Didcoe) Date: Fri, 15 Jul 2011 08:27:54 +0800 Subject: [tech] Broken Webcam In-Reply-To: References: Message-ID: <1CB9BC10-BE75-441D-8457-B8AD338806DA@didcoe.id.au> What could possibly go wrong! Do it. [MRD] On 14/07/2011, at 17:04, Bob Adamson wrote: > Zoneminder seems to have pretty good support for ip cameras now, so we > might even be able to go a little crazy and get something like > http://www.ebay.com.au/itm/WIFI-IP-Network-Wireless-CCTV-Night-Vision-Camera-/270774513986 > > Who's keen? > > Andrew Adamson > UCC President > bob at ucc.asn.au > > |"The faster you move, the slower time passes, the longer you live." | > | ---Peter's Laws | > > On Thu, 14 Jul 2011, Bob Adamson wrote: > >> Hi All, >> >> It looks like the Clubroom_SW camera is dead. I tested it by connecting it >> to the Machine_Room_SW psu and video (it's the same make and model) and >> it's not showing anything. >> >> It's technically still under warranty, but with the company being Hong >> Kong based and the camera being only $32, I'm not sure it's worth the >> effort of chasing it up. >> >> I assume we want to replace it, anyone know of a non-sucky, IR, under >> $50 camera? >> >> Andrew Adamson >> UCC President >> bob at ucc.asn.au >> >> |"The faster you move, the slower time passes, the longer you live." | >> | ---Peter's Laws | >> From Adrian at Diskworld.com.au Fri Jul 15 18:36:29 2011 From: Adrian at Diskworld.com.au (Adrian Woodley) Date: Fri, 15 Jul 2011 18:36:29 +0800 Subject: [tech] Broken Webcam In-Reply-To: References: Message-ID: <4E20182D.7050806@Diskworld.com.au> Have something similar setup at my place, working with ZM. Works reasonably well, although the camer's dynamic range isn't that fantastic - need to be careful to position the camera so it has a fairly uniform light exposure, otherwise it'll lose people as they step out of a light area into shade. My camera also doesn't have PoE, although was fairly simple to dodge up a cable. It also does on-board motion sensing, with ftp upload of triggered images. Haven't tried this out, but it might by-pass the need for ZM altogether. Adrian On 14/07/11 17:04, Bob Adamson wrote: > Zoneminder seems to have pretty good support for ip cameras now, so we > might even be able to go a little crazy and get something like > http://www.ebay.com.au/itm/WIFI-IP-Network-Wireless-CCTV-Night-Vision-Camera-/270774513986 > > Who's keen? > > Andrew Adamson > UCC President > bob at ucc.asn.au > > |"The faster you move, the slower time passes, the longer you live." | > | ---Peter's Laws | > > On Thu, 14 Jul 2011, Bob Adamson wrote: > >> Hi All, >> >> It looks like the Clubroom_SW camera is dead. I tested it by connecting it >> to the Machine_Room_SW psu and video (it's the same make and model) and >> it's not showing anything. >> >> It's technically still under warranty, but with the company being Hong >> Kong based and the camera being only $32, I'm not sure it's worth the >> effort of chasing it up. >> >> I assume we want to replace it, anyone know of a non-sucky, IR, under >> $50 camera? >> >> Andrew Adamson >> UCC President >> bob at ucc.asn.au >> >> |"The faster you move, the slower time passes, the longer you live." | >> | ---Peter's Laws | >> From bob at ucc.gu.uwa.edu.au Tue Jul 19 01:07:31 2011 From: bob at ucc.gu.uwa.edu.au (Bob Adamson) Date: Tue, 19 Jul 2011 01:07:31 +0800 (WST) Subject: [tech] Broken Webcam In-Reply-To: <4E20182D.7050806@Diskworld.com.au> References: <4E20182D.7050806@Diskworld.com.au> Message-ID: The IP camera I linked to has been approved by committee and purchased. Should arrive by the start of semester. Andrew Adamson UCC President bob at ucc.asn.au |"The faster you move, the slower time passes, the longer you live." | | ---Peter's Laws | On Fri, 15 Jul 2011, Adrian Woodley wrote: > Have something similar setup at my place, working with ZM. Works reasonably > well, although the camer's dynamic range isn't that fantastic - need to be > careful to position the camera so it has a fairly uniform light exposure, > otherwise it'll lose people as they step out of a light area into shade. > > My camera also doesn't have PoE, although was fairly simple to dodge up a > cable. It also does on-board motion sensing, with ftp upload of triggered > images. Haven't tried this out, but it might by-pass the need for ZM > altogether. > > Adrian > > On 14/07/11 17:04, Bob Adamson wrote: > > Zoneminder seems to have pretty good support for ip cameras now, so we > > might even be able to go a little crazy and get something like > > http://www.ebay.com.au/itm/WIFI-IP-Network-Wireless-CCTV-Night-Vision-Camera-/270774513986 > > > > Who's keen? > > > > Andrew Adamson > > UCC President > > bob at ucc.asn.au > > > > |"The faster you move, the slower time passes, the longer you live." | > > | ---Peter's Laws | > > > > On Thu, 14 Jul 2011, Bob Adamson wrote: > > > > > Hi All, > > > > > > It looks like the Clubroom_SW camera is dead. I tested it by connecting it > > > to the Machine_Room_SW psu and video (it's the same make and model) and > > > it's not showing anything. > > > > > > It's technically still under warranty, but with the company being Hong > > > Kong based and the camera being only $32, I'm not sure it's worth the > > > effort of chasing it up. > > > > > > I assume we want to replace it, anyone know of a non-sucky, IR, under > > > $50 camera? > > > > > > Andrew Adamson > > > UCC President > > > bob at ucc.asn.au > > > > > > |"The faster you move, the slower time passes, the longer you live." | > > > | ---Peter's Laws | > > > > From atyndall at ucc.asn.au Tue Jul 19 15:28:42 2011 From: atyndall at ucc.asn.au (Ash Tyndall) Date: Tue, 19 Jul 2011 15:28:42 +0800 Subject: [tech] GPS Time & Frequency Receiver Found Message-ID: Guess what was found in the "To eBay" box? The TrueTime GPS Time & Frequency Receiver. Whoever wants it, throw me an email, or it's getting sold. -- Ash Tyndall [ASH] 2011 Fresher Rep -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.ucc.gu.uwa.edu.au/pipermail/tech/attachments/20110719/715c9e03/attachment.htm From zarquin at ucc.gu.uwa.edu.au Tue Jul 19 15:33:50 2011 From: zarquin at ucc.gu.uwa.edu.au (Alwyn Lloyd) Date: Tue, 19 Jul 2011 15:33:50 +0800 (WST) Subject: [tech] GPS Time & Frequency Receiver Found In-Reply-To: References: Message-ID: Ah-ha. well hidden then. I've got an antenna-ry thingy for it, can you put it somewhere safe, and i'll come in on friday to play with it? [zar] > Guess what was found in the "To eBay" box? > The TrueTime GPS Time & Frequency Receiver. > > Whoever wants it, throw me an email, or it's getting sold. > > -- > Ash Tyndall [ASH] > 2011 Fresher Rep > > > From shmookey at shmookey.net Tue Jul 19 16:13:16 2011 From: shmookey at shmookey.net (Luke Williams) Date: Tue, 19 Jul 2011 16:13:16 +0800 Subject: [tech] Possible Club Purchase Idea: GPU heavy calculations box In-Reply-To: <20110624033218.GB25847@ucc.gu.uwa.edu.au> References: <20110624033218.GB25847@ucc.gu.uwa.edu.au> Message-ID: On Fri, Jun 24, 2011 at 11:32 AM, Nick Bannon wrote: > Sounds fun, I'll donate, too. Me too! > It's getting progressively harder to mine/verify, right? Anyone here > done any recently? Some people have reportedly managed to get ~1700Mhash/s out of a setup with 2x6990 GPUs. If we really wanted to go all out, we could get four of these cards in a machine and (optimistically) achieve 3.4Ghash/s. At the current difficulty level for generation and the current reward level for generating a block we could expect to earn (by `time = difficulty * 2**32 / hashrate`) roughly 2.2 bitcoins a day, equivalent to about $25 at the present (volatile) exchange rate. I don't think profit should be taken to be the primary motive for buying the machine - but it's certainly something useful for it to do while there are no other jobs for it. I've drafted a spec by taking some of the best parts I could find on Austin's website (so the prices/availability might not be the best): https://spreadsheets.google.com/spreadsheet/ccc?key=0AoZGh3sG7AokdExrb2lOWk1lX2pBMHNtRjJnM2c4Z1E&hl=en_US I encourage anyone with hardware savvy to alter the list if you see any way of improving the value for money! On Fri, Jun 24, 2011 at 11:16 AM, Daniel Axtens wrote: >> The plan would be to lock it in the MR, away from gamers. Good plan. This would be easy once it has some of the responsibilities of a server. Cheers, Luke On Fri, Jun 24, 2011 at 11:32 AM, Nick Bannon wrote: > On Fri, Jun 24, 2011 at 11:16:56AM +0800, Daniel Axtens wrote: >> A few people tossed around the idea of getting a multiple-GPU box >> to do Maths(TM). Suggested projects included Cameron Hall 3D (CH3D), >> Bitcoin mining (possible source of club income: although, are they worth >> anything any more?), and generally other cool stuff. > [...] > > Sounds fun, I'll donate, too. > > It's getting progressively harder to mine/verify, right? Anyone here > done any recently? > >> The plan would be to lock it in the MR, away from gamers. > > Even if thats not the primary goal, it'd be nice to hook one of those GPUs > to a clubroom-visible GDU on occasion, maybe it could show walkthroughs of CH3D. > > Nick. > > -- > ? Nick Bannon ? | "I made this letter longer than usual because > nick-sig at rcpt.to | I lack the time to make it shorter." - Pascal > From matt at ucc.asn.au Sun Jul 31 23:26:54 2011 From: matt at ucc.asn.au (Matt Johnston) Date: Sun, 31 Jul 2011 23:26:54 +0800 Subject: [tech] [wheel] Spamassassin broken In-Reply-To: <20110731144919.GP30714@ucc.gu.uwa.edu.au> References: <20110730014853.GK30714@ucc.gu.uwa.edu.au> <20110731142042.GN30714@ucc.gu.uwa.edu.au> <20110731144919.GP30714@ucc.gu.uwa.edu.au> Message-ID: <20110731152654.GR30714@ucc.gu.uwa.edu.au> This should go to tech@ not just wheel@, providing some notes on UCC's spamassasssin. If anyone wants to see the bits on mooneye that are wheel-only let me know. The context is that spamassassin was tagging large amounts of genuine mail as spam so it's been (either permanently or temporarily) disabled. Filter on "X-SpamTest-Status: SPAM" from ITS's Ironports instead, it's more reliable anyway. Matt On Sun, Jul 31, 2011 at 10:37:24PM +0800, Bob Adamson wrote: > I'm just gonna put it out there - I have no idea how our mail spam > filtering works or where it's configured. I've had a bit of a look at my > procmailrc file and afaict it just looks for [SPAM] in the subject line. > Anyway, could you possibly explain how/where it's configured and what > exactly needs to change? To expand on what's what: - There's a spamd server for Spamassassin on mooneye. It listens on port 783 - When it used to be enabled postfix (in /etc/postfix/master.cf) had "smtpd -o content_filter=spamfilter:" That then ran: - /usr/local/sbin/newspamfilter.pl is what Bernard (iirc) wrote to run non-local mail through /usr/local/sbin/spamfilter which feeds mail to spamd. I think the latter script's what's packaged with spamassin. - The spamd learning happens with the "spamass" account. It has a logfile ~spamass/learnlog. I just took a look at it and it was complaining about "bayes: bad permissions on journal, can't read: /var/spamassassin-nobody/.spamassassin/bayes_journal" because that file's owned as root. I've now chowned it back to spamass. I wonder if that was related... - There's a special spamass crontab: spamass at mooneye:~$ crontab -l -u spamass # m h dom mon dow command 53/30 * * * * ~/learnspam - That learns stuff that gets forwarded to the spamass user. I think spamassassin also learned from spam it filtered, see all the rules in /etc/spamassin/local.cf So perhaps we could try and fix the /var/spamassassin-nobody/ bayesian database and then turn spamassassin back on. Matt