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Is there a way to provide a secondary/backup SMTP server for Evolution?
by Chris G 17 Mar '11

17 Mar '11

We have (at least) two SMTP servers available to us for sending mail, in fact we have way more than that as we have two ADSL connections from different ISPs (hence two SMTP servers from them) and we also have two hosting services separate from the ISPs and they too provide SMTP servers. Is there any way that we can use these to provide some redundancy when sending mail from Evolution? At present I can't see any really easy way to do it as Evolution doesn't really allow for the use of more than one SMTP unless you manually change accounts. I run postfix on one of the machines here, I could point Evolution at postfix for sending mail, can one tell postfix to try an alternative SMTP server if the main/default one is down? It feels like the MX records for the 'smarthost' that we send our mail to (both from Postfix and Evolution at the moment) should provide this but I'm not convinced that it does. E.g. the mail relay I'm using for my local postfix is relay.mail.gandi.net and that doesn't return any explicit MX records in response to a query. The mail relay used by evolution is provided by my hosting at TsoHost and is mail.isbd.net, that does have an MX record:- chris$ host mail.isbd.net mail.isbd.net is an alias for isbd.net. isbd.net has address 188.65.115.75 isbd.net mail is handled by 0 isbd.net. I can manipulate the zone file for isbd.net but I'm not sure if that will actually do what I need. Can anyone help/elucidate/point me somewhere useful? A bit of Googling suggests that maybe Postfix's fallback_relay is what I need but I'd like to find a tutorial/howto because the basic manual is a bit concise shall we say. -- Chris Green

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Re: [ALUG] Ugliest sites on the net.
by Phil Ashby 17 Mar '11

17 Mar '11

On 16/03/11 12:00, Bill Hill <mail(a)wbh.org> wrote: > Following from the pubmeet talk about the worst websites out there, (frames, > flash, geocities, vbsript!) well, after a bit of searching I've found again my > contender for this hotly contested category. > > http://www.dokimos.org/ajff/indexpage.html Ye gods (literally!). Did anyone dare to click through to the main page? This appears in a large font: "Pressurous Moments Storybook Collection" It's almost as if someone is doing it on purpose ;) P

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Ugliest sites on the net.
by Bill Hill 17 Mar '11

17 Mar '11

Following from the pubmeet talk about the worst websites out there, (frames, flash, geocities, vbsript!) well, after a bit of searching I've found again my contender for this hotly contested category. http://www.dokimos.org/ajff/indexpage.html %-)

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Dual Boot On 8GB
by Simon Royal 17 Mar '11

17 Mar '11

Hi Do you think it is possible to Ubuntu and XP, dual booted on an 8GB SSD? Im running Ubuntu on my EeePC, but I would like to run XP for a few apps. Simon -- --- Twitter: http://twitter.com/SimonRoyal - LowEndMac: http://tinyurl.com/macspectrum - Skype: Simon-Royal. --- Asus EeePC 701SD running Ubuntu 10.10. Sony Ericsson Xperia X10 Mini Pro running 2.1

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Kiddy Friendly Browser
by Simon Royal 14 Mar '11

14 Mar '11

Hi I have young children who have computers. They used to have Macs which were running Safari, which had a great built in restricted web access and you could lock down the whole system so it was tamper proof. They moved to PCs as their Macs were getting a bit old and they use a lot of Flash sites and Flash is not well developed for PPC Macs. So at present they are running Windows XP on some good spec P4 Celeron 2.5Ghz machines, but with all the anti-virus and anti-malware software it makes the machines crawl. They are also using a kiddy safe browser called KidZui which I think is a kiddy front end for IE, it too is really bad. Its slow and chokes all the time, but it provides a massive selection of preapproved sites, vids and games. I ran Ubuntu on from a Live CD on one of theirs and it screamed. They both have the same machine and running one with Windows XP minus safety software and the other from a Live CD, the Live CD beat it hands down. KidZui is a Windows only thing and I wondered if there was anything like it for Linux, then I could dual boot Win/Linux for the odd occasion they might need Windows. I found some kiddy friendly distros but I am just after a way of letting them only have access to certain stuff on the web without too much hassle and not a whole new distro for me to learn. There was an excellent Firefox addon called Glubble we used for a while that offered a platform independent safe surfing environment but it no longer works. My kids are only 6 and 8 so it is only sites like CBeebies, NickJnr and Lego that they need access to. Simon -- --- Twitter: http://twitter.com/SimonRoyal - LowEndMac: http://tinyurl.com/macspectrum - Skype: Simon-Royal. --- Asus EeePC 701SD running Ubuntu 10.10. Sony Ericsson Xperia X10 Mini Pro running 2.1

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Find environment variables used by some process
by Richard Lewis 14 Mar '11

14 Mar '11

Hi ALUG, Is it possible to query the environment variables being used by a specific process; from the outside? Specifically, I want to know if a running Apache has a particular environment variable set. Best, Richard -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Richard Lewis ISMS, Computing Goldsmiths, University of London Tel: +44 (0)20 7078 5134 Skype: richardjlewis JID: ironchicken(a)jabber.earth.li http://www.richardlewis.me.uk/ -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Sent from my [insert device/mail clinet here]

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Ubuntu Update Manager Says No Internet
by Simon Royal 13 Mar '11

13 Mar '11

Hi Update Manager told me there were 6 updates, but when I go to download them it says I have no internet. I know I do as I have been on eBay this morning and am writing this in GMail webmail. Anyone else experiencing problems. Most of the updates were for Firefox and Firefox branding, so I thought closing Firefox might help but it didnt. SImon -- --- Twitter: http://twitter.com/SimonRoyal - LowEndMac: http://tinyurl.com/macspectrum - Skype: Simon-Royal. --- Asus EeePC 701SD running Ubuntu 10.10. Sony Ericsson Xperia X10 Mini Pro running 2.1

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"top -bn1p1" shows constant system CPU usage of 4.9%
by Mark Rogers 09 Mar '11

09 Mar '11

top -bn1p1 .. should return the data for (b)atch processing, without any refreshed (n1), for process 1 (p1). (The p1 is there just to save it sending me data for all processes, I'm not interested in anything apart from the header information.) It always[*] on my test system shows 4.9%sy If I run top normally, I notice now that it always shows 4.9% on the first scan, then starts to vary. Any suggestions as to why it never deviates on first scan? [*] "Always" in as much as I have some code that logs the value every 5 mins, and for over a day it hasn't changed; it's a test server that is fairly heavily used during the day and not at all at night, so I'd expect some variation. All the CPU usage figures are almost static, there's max 0.1% variation in some of the others. Also, suggestions as to other ways to get this sort of information would be welcomed. All I want is some sample data to use in another process, so I'm logging CPU, memory and disk usage (etc) as reported by top and df. -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG

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ssh conundrum
by Chris G 08 Mar '11

08 Mar '11

I have a shell login on host cheddar.halon.org.uk, while I was away for a few days recently (that bit's irrelevant really), cheddar.halon.org.uk was (presumably) moved to an new machine and thus its host key changed. So, when I came home, my passwordless login to cheddar.halon.org.uk failed with the usual ssh message about 'host key has changed', maybe a man in the middle attack, etc. I removed the relevant line from ~/.ssh/known_hosts, logged in again, the correct line was added to ~/.ssh/known_hosts and all was well again, or so I thought. However, it doesn't all work again as it did:- While ssh logins to cheddar.halon.org.uk from terminal windows on my GUI desktop are passwordless logins from shell console terminals (i.e. CTRL/ALT/n ones) ask for my password at cheddar.halon.org.uk (N.B. they don't ask for the key to my passphrase, it's the cheddar.halon.org.uk password that is asked for). I'm sure these used to work. More to the point my rsync backup to cheddar.halon.org.uk that runs as a cron job has also stopped working, it's expecting a passwordless login to cheddar.halon.org.uk but like the ssh login from a console it's failing because cheddar.halon.org.uk is asking for a password. So both the above problems point at some sort of screw up with ssh_agent but it's complicated by the following:- The file ~/.ssh/config contains:- Host cheddar.halon.org.uk IdentityFile ~/.ssh/np_id_rsa and ~/.ssh/np_id_rsa and ~/.ssh/np_id_rsa.pub haven't changed so why isn't it being used? Any ideas as to what else might have been affected by the host key change at cheddar.halon.org.uk? It's possible some previous misconfiguration was masking something such that the passwordless login was working for some other reason than the config file above but I still need to sort it out. -- Chris Green

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Re: [ALUG] Best Format For External Drive
by James Bensley 07 Mar '11

07 Mar '11

On 7 March 2011 21:30, Simon Royal <mrsimonroyal(a)gmail.com> wrote: > James > > I thought about NTFS, but it just doesnt play nice with OSX or Linux. > OSX hsa native read capabilities but its a struggle to get it to write > well - even using ntfs-3g. > > Simon Agreed (mostly). I would have mentioned the lack of write support from OS X as I use it every day but you only mentioned Linux and Windows in your original post. However, I'm surprised people still have any mentionable issues with Linux, I haven't in a long time (not to say that isn't just a fluke though!). If Mac wasn't going to be an issue I would have went NTFS simply because you never know what's going to be happening 6 months from now, however it may obviously be the case that you do know this...Evil which doctor :D -- James. http://www.jamesbensley.co.cc/ There are 10 kinds of people in the world; Those who understand Vigesimal, and J others...?

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