From alastair at ucc.gu.uwa.edu.au Mon Nov 14 21:16:28 2005 From: alastair at ucc.gu.uwa.edu.au (alastair@ucc.gu.uwa.edu.au) Date: Mon, 14 Nov 2005 21:16:28 +0800 Subject: [tech] UCC internal network reachability Message-ID: <1131974188.43788e2c65a91@secure.ucc.asn.au> I wonder if anyone can shed some light on this problem. The output below is from one machine at my place. Another machine here and a web ping gateway gave similar results. The same ICMP response comes back for the other UCC machines I tried. ("code 10" means Communication with Destination Host is Administratively Prohibited.) $ ping manbo.ucc.gu.uwa.edu.au PING manbo.ucc.gu.uwa.edu.au (130.95.13.7) 56(84) bytes of data. From madako.ucc.gu.uwa.edu.au (130.95.13.3) icmp_seq=1 Dest Unreachable, Bad Code: 10 From madako.ucc.gu.uwa.edu.au (130.95.13.3) icmp_seq=2 Dest Unreachable, Bad Code: 10 --- manbo.ucc.gu.uwa.edu.au ping statistics --- 2 packets transmitted, 0 received, +2 errors, 100% packet loss, time 1001ms From matt at ucc.asn.au Mon Nov 14 21:19:32 2005 From: matt at ucc.asn.au (Matt Johnston) Date: Mon, 14 Nov 2005 21:19:32 +0800 Subject: [tech] UCC internal network reachability In-Reply-To: <1131974188.43788e2c65a91@secure.ucc.asn.au> References: <1131974188.43788e2c65a91@secure.ucc.asn.au> Message-ID: <20051114131932.GL16724@ucc.gu.uwa.edu.au> On Mon, Nov 14, 2005 at 09:16:28PM +0800, alastair at ucc.gu.uwa.edu.au wrote: > I wonder if anyone can shed some light on this problem. The output below is > from one machine at my place. Another machine here and a web ping gateway gave > similar results. The same ICMP response comes back for the other UCC machines I > tried. > > ("code 10" means Communication with Destination Host is Administratively > Prohibited.) > > $ ping manbo.ucc.gu.uwa.edu.au > PING manbo.ucc.gu.uwa.edu.au (130.95.13.7) 56(84) bytes of data. > From madako.ucc.gu.uwa.edu.au (130.95.13.3) icmp_seq=1 Dest Unreachable, Bad > Code: 10 aarnet are charging us for traffic over waix, so the firewall is blocking the traffic (see http://traffictester.ucc.asn.au/ to check). It's using a non-standard ICMP code so that it's recognisable and programs will quickly avoid connecting. Hopefully things should get fixed some time in the future. For now, you can use the coke-charged ssh.ucc.asn.au or telnet.ucc.asn.au, or tartarus for students. Matt From zanchey at ucc.gu.uwa.edu.au Mon Nov 14 21:53:56 2005 From: zanchey at ucc.gu.uwa.edu.au (David Adam) Date: Mon, 14 Nov 2005 21:53:56 +0800 (WST) Subject: [tech] UCC internal network reachability In-Reply-To: <20051114131932.GL16724@ucc.gu.uwa.edu.au> References: <1131974188.43788e2c65a91@secure.ucc.asn.au> <20051114131932.GL16724@ucc.gu.uwa.edu.au> Message-ID: On Mon, 14 Nov 2005, Matt Johnston wrote: > On Mon, Nov 14, 2005 at 09:16:28PM +0800, alastair at ucc.gu.uwa.edu.au wrote: > > I wonder if anyone can shed some light on this problem. The output below is > > from one machine at my place. Another machine here and a web ping gateway gave > > similar results. The same ICMP response comes back for the other UCC machines I > > tried. > > > > ("code 10" means Communication with Destination Host is Administratively > > Prohibited.) > > > > $ ping manbo.ucc.gu.uwa.edu.au > > PING manbo.ucc.gu.uwa.edu.au (130.95.13.7) 56(84) bytes of data. > > From madako.ucc.gu.uwa.edu.au (130.95.13.3) icmp_seq=1 Dest Unreachable, Bad > > Code: 10 > > aarnet are charging us for traffic over waix, so the > firewall is blocking the traffic (see > http://traffictester.ucc.asn.au/ to check). It's using a > non-standard ICMP code so that it's recognisable and > programs will quickly avoid connecting. Hopefully things > should get fixed some time in the future. IMO, type 10 is exactly the right message to be sending... > For now, you can use the coke-charged ssh.ucc.asn.au or > telnet.ucc.asn.au, or tartarus for students. Also, for those who are unaware, connecting to martello.ipv6.ucc.asn.au will work for free, ATM - if you have IPv6 connectivity. Replacing martello with mussel also works, although manbo, mermaid and morwong don't accept IPv6 logins yet. I have been raving on IRC about Windows' IPv6, which is just too easy for words. David Adam UCC Wheel Member From davyd at madeley.id.au Mon Nov 14 22:12:52 2005 From: davyd at madeley.id.au (Davyd Madeley) Date: Mon, 14 Nov 2005 22:12:52 +0800 Subject: [tech] UCC internal network reachability In-Reply-To: References: <1131974188.43788e2c65a91@secure.ucc.asn.au> <20051114131932.GL16724@ucc.gu.uwa.edu.au> Message-ID: <1131977572.11138.78.camel@frobisher.madeley.id.au> On Mon, 2005-11-14 at 21:53 +0800, David Adam wrote: > Also, for those who are unaware, connecting to martello.ipv6.ucc.asn.au > will work for free, ATM - if you have IPv6 connectivity. Replacing > martello with mussel also works, although manbo, mermaid and morwong > don't accept IPv6 logins yet. I have been raving on IRC about Windows' > IPv6, which is just too easy for words. Please be aware that free IPv6 connectivity is a privilege, not a right. It is only free because charging for it is hard (or something like that). If someone puts a huge traffic spike on it, it is likely to simply be turned off. --d -- Davyd Madeley http://www.davyd.id.au/ 08B0 341A 0B9B 08BB 2118 C060 2EDD BB4F 5191 6CDA From trs80 at ucc.gu.uwa.edu.au Mon Nov 21 21:18:36 2005 From: trs80 at ucc.gu.uwa.edu.au (James Andrewartha) Date: Mon, 21 Nov 2005 21:18:36 +0800 (WST) Subject: [tech] manbo and machine room upgrades Message-ID: Now that exams are over, it's time to upgrade manbo and restore order to the machine room. I'm thinking a Sunday is the best time, otherwise a Tuesday or Thursday is also good with me. In preparation to upgrading manbo to opensolaris (mmm, ZFS goodness), I've been checking on disk usage on manbo. The largest items are bacula's mysql tables, which will go away when I move backups to martello, and nfs logs of /services - can anyone remember why we were logging /services? Oh, and a GB of crash data in /var/crash/manbo, which I'm going to delete unless someone has a good reason not to. -- # TRS-80 trs80(a)ucc.gu.uwa.edu.au #/ "Otherwise Bub here will do \ # UCC Wheel Member http://trs80.ucc.asn.au/ #| what squirrels do best | [ "There's nobody getting rich writing ]| -- Collect and hide your | [ software that I know of" -- Bill Gates, 1980 ]\ nuts." -- Acid Reflux #231 / From elixxir at ucc.asn.au Tue Nov 22 13:13:39 2005 From: elixxir at ucc.asn.au (Paul Marinceu) Date: Tue, 22 Nov 2005 13:13:39 +0800 Subject: [tech] manbo and machine room upgrades In-Reply-To: References: Message-ID: <4382A903.30304@ucc.asn.au> James Andrewartha wrote: [snip] > In preparation to upgrading manbo to opensolaris (mmm, ZFS goodness), I've Yeah, that does sound quite cool. A chance to play with something other than GNU/Linux (not that playing with Linux is bad or anything...) ;P From davyd at madeley.id.au Tue Nov 22 13:52:02 2005 From: davyd at madeley.id.au (Davyd Madeley) Date: Tue, 22 Nov 2005 13:52:02 +0800 Subject: [tech] manbo and machine room upgrades In-Reply-To: <4382A903.30304@ucc.asn.au> References: <4382A903.30304@ucc.asn.au> Message-ID: <20051122135202.tpp55yz5ups0gs8s@mail.bridgewayconsulting.com.au> Quoting Paul Marinceu : > James Andrewartha wrote: > [snip] >> In preparation to upgrading manbo to opensolaris (mmm, ZFS goodness), I've > > Yeah, that does sound quite cool. > A chance to play with something other than GNU/Linux (not that > playing with Linux is bad or anything...) ZFS looks hot. So why do I feel that I'm going to be strangely disappointed and unfufilled by yet another filesystem? A weekend is probably good. I think I'm refactoring a garden all next weekend though :( --d From davidb-f00f at rcpt.to Tue Nov 22 14:32:40 2005 From: davidb-f00f at rcpt.to (David Basden) Date: Tue, 22 Nov 2005 14:32:40 +0800 Subject: [tech] manbo and machine room upgrades In-Reply-To: <20051122135202.tpp55yz5ups0gs8s@mail.bridgewayconsulting.com.au> References: <4382A903.30304@ucc.asn.au> <20051122135202.tpp55yz5ups0gs8s@mail.bridgewayconsulting.com.au> Message-ID: <20051122063240.GB19987@chastity.shikita.com.au> On Tue, Nov 22, 2005 at 01:52:02PM +0800, Davyd Madeley wrote: > ZFS looks hot. So why do I feel that I'm going to be strangely > disappointed and > unfufilled by yet another filesystem? I wouldn't worry. It's not really a filesystem. (mmmm. not having to use file abstraction if it's not relevant) David From trs80 at ucc.gu.uwa.edu.au Sat Nov 26 17:03:20 2005 From: trs80 at ucc.gu.uwa.edu.au (James Andrewartha) Date: Sat, 26 Nov 2005 17:03:20 +0800 (WST) Subject: [tech] manbo Message-ID: /services has gone away, probably related to the two disks that failed recently. I can't make it in tonight, can anyone else go in and diagnose? -- # TRS-80 trs80(a)ucc.gu.uwa.edu.au #/ "Otherwise Bub here will do \ # UCC Wheel Member http://trs80.ucc.asn.au/ #| what squirrels do best | [ "There's nobody getting rich writing ]| -- Collect and hide your | [ software that I know of" -- Bill Gates, 1980 ]\ nuts." -- Acid Reflux #231 / From zanchey at ucc.gu.uwa.edu.au Sun Nov 27 22:17:52 2005 From: zanchey at ucc.gu.uwa.edu.au (David Adam) Date: Sun, 27 Nov 2005 22:17:52 +0800 (WST) Subject: [tech] manbo In-Reply-To: References: Message-ID: Thanks to Fearless Leader [DAG] and [TRS], manbo is back up again (you may make your own jokes about keeping Viagra out of direct Sun-light). The disk array is still 'unhappy', probably as a result of temperature issues. (For those unaware, one of our aircons appears to have a broken thermostat, and various people are investigating a new one.) No data has been lost. Anyone who has brilliant ideas about how to reduce the temperature in the machine room should contact their nearest wheel member (although we have already considered the liquid nitrogen plan). David Adam zanchey at ucc.gu.uwa.edu.au UCC (Almost made a crack about Wheel Group being tyred of the heat problems, but it was all a bit exhausting) From elixxir at ucc.asn.au Mon Nov 28 09:21:41 2005 From: elixxir at ucc.asn.au (Paul Marinceu) Date: Mon, 28 Nov 2005 09:21:41 +0800 Subject: [tech] manbo In-Reply-To: References: Message-ID: <438A5BA5.90702@ucc.asn.au> David Adam wrote: [snip] > Anyone who has brilliant ideas about how to reduce the temperature in the > machine room should contact their nearest wheel member (although we have > already considered the liquid nitrogen plan). Fans. Lots and lots of fans crammed tightly in the machine room. Also, get rid of all un-necessary machines, esp. those really really ancient ones that produce heaps of heat in exchange for measly Mhz. Performance per watt people, that's the latest craze :P Just my 2c. From dayta at ucc.gu.uwa.edu.au Mon Nov 28 09:26:10 2005 From: dayta at ucc.gu.uwa.edu.au (Leighton Haynes) Date: Mon, 28 Nov 2005 09:26:10 +0800 Subject: [tech] manbo In-Reply-To: <438A5BA5.90702@ucc.asn.au> References: <438A5BA5.90702@ucc.asn.au> Message-ID: <20051128012610.GI4029@ucc.gu.uwa.edu.au> On Mon, Nov 28, 2005 at 09:21:41AM +0800, Paul Marinceu wrote: > David Adam wrote: > [snip] > >Anyone who has brilliant ideas about how to reduce the temperature in the > >machine room should contact their nearest wheel member (although we have > >already considered the liquid nitrogen plan). > > Fans. Lots and lots of fans crammed tightly in the machine room. > > Also, get rid of all un-necessary machines, esp. those really really > ancient ones that produce heaps of heat in exchange for measly Mhz. > Performance per watt people, that's the latest craze :P Yeah, I agree here. Get rid of as much old crappy shit as possible. And start making people who colo boxes there responsible for using low-power machines ;) Leighton... -- #0421 113 305 - dayta at ucc.gu.uwa.edu.au "Linux is legacy, but it will be a start." Ken Kutaragi - SCE From matt at ucc.asn.au Mon Nov 28 11:18:48 2005 From: matt at ucc.asn.au (Matt Johnston) Date: Mon, 28 Nov 2005 11:18:48 +0800 Subject: [tech] manbo In-Reply-To: <438A5BA5.90702@ucc.asn.au> References: <438A5BA5.90702@ucc.asn.au> Message-ID: <20051128031848.GJ29695@ucc.gu.uwa.edu.au> On Mon, Nov 28, 2005 at 09:21:41AM +0800, Paul Marinceu wrote: > David Adam wrote: > [snip] > >Anyone who has brilliant ideas about how to reduce the temperature in the > >machine room should contact their nearest wheel member (although we have > >already considered the liquid nitrogen plan). > > Fans. Lots and lots of fans crammed tightly in the machine room. > > Also, get rid of all un-necessary machines, esp. those really really > ancient ones that produce heaps of heat in exchange for measly Mhz. > Performance per watt people, that's the latest craze :P I'd hazard a guess that manbo might be the worst offender there ;) Could be wrong. Matt From frenchie at ucc.gu.uwa.edu.au Mon Nov 28 11:40:17 2005 From: frenchie at ucc.gu.uwa.edu.au (James French) Date: Mon, 28 Nov 2005 11:40:17 +0800 Subject: [tech] manbo In-Reply-To: <20051128031848.GJ29695@ucc.gu.uwa.edu.au> References: <438A5BA5.90702@ucc.asn.au> <20051128031848.GJ29695@ucc.gu.uwa.edu.au> Message-ID: <20051128034017.GA31710@ellipsis.frenchie.id.au> On Mon, Nov 28, 2005 at 11:18:48AM +0800, Matt Johnston wrote: > On Mon, Nov 28, 2005 at 09:21:41AM +0800, Paul Marinceu wrote: > > David Adam wrote: > > [snip] > > >Anyone who has brilliant ideas about how to reduce the temperature in the > > >machine room should contact their nearest wheel member (although we have > > >already considered the liquid nitrogen plan). > > > > Fans. Lots and lots of fans crammed tightly in the machine room. > > > > Also, get rid of all un-necessary machines, esp. those really really > > ancient ones that produce heaps of heat in exchange for measly Mhz. > > Performance per watt people, that's the latest craze :P > > I'd hazard a guess that manbo might be the worst offender > there ;) Could be wrong. > > Matt > I'd tend to agree with you ;) (the other) James From cameron at ucc.asn.au Mon Nov 28 11:47:28 2005 From: cameron at ucc.asn.au (Cameron Patrick) Date: Mon, 28 Nov 2005 11:47:28 +0800 Subject: [tech] manbo In-Reply-To: <20051128031848.GJ29695@ucc.gu.uwa.edu.au> References: <438A5BA5.90702@ucc.asn.au> <20051128031848.GJ29695@ucc.gu.uwa.edu.au> Message-ID: <20051128034728.GN562@zeno.patrick.wattle.id.au> Matt Johnston wrote: > > Also, get rid of all un-necessary machines, esp. those really really > > ancient ones that produce heaps of heat in exchange for measly Mhz. > > Performance per watt people, that's the latest craze :P > > I'd hazard a guess that manbo might be the worst offender > there ;) Could be wrong. We should replace it with a Xen on martello. Cameron From davyd at madeley.id.au Mon Nov 28 11:57:06 2005 From: davyd at madeley.id.au (Davyd Madeley) Date: Mon, 28 Nov 2005 11:57:06 +0800 Subject: [tech] manbo In-Reply-To: <20051128034017.GA31710@ellipsis.frenchie.id.au> References: <438A5BA5.90702@ucc.asn.au> <20051128031848.GJ29695@ucc.gu.uwa.edu.au> <20051128034017.GA31710@ellipsis.frenchie.id.au> Message-ID: <20051128035706.GD5842@bridgewayconsulting.com.au> On Mon, Nov 28, 2005 at 11:40:17AM +0800, James French wrote: > > I'd hazard a guess that manbo might be the worst offender > > there ;) Could be wrong. > > > I'd tend to agree with you ;) So let's move it into the clubroom. --d -- Davyd Madeley http://www.davyd.id.au/ 08B0 341A 0B9B 08BB 2118 C060 2EDD BB4F 5191 6CDA From elixxir at ucc.asn.au Mon Nov 28 12:46:37 2005 From: elixxir at ucc.asn.au (Paul Marinceu) Date: Mon, 28 Nov 2005 12:46:37 +0800 Subject: [tech] manbo In-Reply-To: <20051128031848.GJ29695@ucc.gu.uwa.edu.au> References: <438A5BA5.90702@ucc.asn.au> <20051128031848.GJ29695@ucc.gu.uwa.edu.au> Message-ID: <438A8BAD.9020703@ucc.asn.au> Matt Johnston wrote: [snip] > I'd hazard a guess that manbo might be the worst offender > there ;) Could be wrong. Might be right...I'm pretty sure those things were meant to live in fully air-con'd raised floor datacentres ;) Keeping in mind that the heat is only going to get worse in summer, something should be figured out. Moving into clubroom? Asking UWA for colo space? Either way, UCC should look at consolidating services on a small number of powerful machines and even using virtualisation. I reckon it's even worth a shot asking VMWare for a license donation? I think Davyd or someone proposed some sort of big cleanup for this summer anyway. And like I said, fans would help heaps, as ventilation/air-flow are the goals. --p