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• I have a mail server that hosts several client emails but 1 in particular is being blocked because of its SBRS score

  - by Vince Saavedra

  If I was hosting emails for 3 clients and my reverse DNS is mail.allclients.com and I am hosting for client2.com, client3.com etc. What would be the rDNS for client3.com? Would it reflect the rDNS of mail.allclients.com? If so, I do I prevent mails from client3.com from being blocked because the PTR does not match rDNS? Finally on your advice to have my email service publish an SPF record. Is this something I need to submit to the company I registered my mail.allclients.com to? So I for example registered with GoDaddy.com then I will need to submit a request to them to publish an SPF record on their DNS right? Thank you for your advice and kind assistance. Vince Saavedra

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• Smallest UPS Available?

  - by Jon-Eric

  I'm thinking of moving my Linksys router into a wiring panel but I'd like a UPS in there with it. What's the smallest UPS that you'd recommend?

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• Piwik usage in production environment

  - by MrG

  We're thinking about using Piwik on a production environment. Has anybody already gained some experience with that tool, what are your opinions. Many thanks!

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• Mac OS X bash prompt bug?

  - by Memo

  I am trying to set my bash prompt to display the time and current directory in bold: export PS1="\[\e[1m\][\A] \w \$ \[\e[0m\]" This does apparently work, but when I use the command history (ctrl-r), after finding the command I was searching for and pressing enter, this line is not displayed correctly. Here is an example: [21:58] ~/Wyona/svn-repos/zwischengas $ (reverse-i-search)`ta': tail -F logs/log4j-cnode1.log becomes, after pressing enter: [21:58] ~/Wyona/svn-repos/zwischengas $ -F logs/log4j-cnode1.log Of course, this is not "really" a problem, since the command does work correctly, but it is still annoying. Does anybody know why this happens? And, more importantly, how to prevent/fix it? Thanks, Memo

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• Is there a way to make my Windows know about my BIOS settings?

  - by Diogo Rocha

  For a very specific situation on a project, I need to make a Windows machine know about some specific settings at the BIOS(such as Enabled/Disabled PXE boot, Boot Sequence, Bios Version, and more....). I'm thinking in doing this with powershell, VBScript, or whatever(actually doesn't matter how, I just need to read these settings from Windows). I'm reseaching this and found nothing for now, there is a way(maybe a indirect one)?

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• How to: mirror a staging server from a production server

  - by Zombies

  We want to mirror our current production app server (Oracle Application Server) onto our staging server. As it stands right now, various things are out of sync, and what may work in testing/QA can easily fail in production because of settings/patch/etc inconsistencies. I was thinking what would be best is to clone the entire disk daily and push it onto the staging server... Would this be the best method...? (note: these are all windows servers)

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• gotomypc and aircard?

  - by user13743

  My boss is looking at getting an aircard ( internet over cell network ) for his laptop. One of the uses he mentioned was gotomypc. I couldn't find good information on it, but I was thinking it would blow out the bandwidth because it was like streaming a movie. Is gotomypc really feasible with an aircard at this point?

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• How to change expose settings for a specific space on osx

  - by Jonathan Mayhak

  Is there a way to change expose settings for a specific space? reason: sometimes I run windows in another space full screen. I don't like things happening when I put my cursor in the corner. Especially if I'm playing a game. I was thinking I could find a hotkey utility to turn off expose, but I'd rather it be automatic.

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• IDE Controller Error causing BSOD?

  - by Wesley

  Hi all, So I was thinking before that a series of "SideBySide" errors were causing BSODs on my netbook (Samsung N120 + 2GB RAM). But I think it is an "atapi" error which says: "The driver detected a controller error on \Device\Ide\IdePort0." Has anyone else had this error and is there a fix for it? Also, I had other "atapi" errors before it saying: "The device, \Device\Ide\IdePort0, did not respond within the timeout period."

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• apache or nginx or lighttpd ?

  - by vk123

  I'm going to be live blogging from a event and expect huge spike in traffic. im currently using apache with modphp and it died last year under traffic Don't want it to happen again. I'm thinking of setting up a separate VPS for this blog running on worpdress what should i install ? apache . lighttpd or nginx ? which will perform the best under heavy load ? content will be very dynamic - AJAX updates

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• System restarting without warning

  - by doug

  I was running Windows 7 and from time to time it shutdown with no reason. I was thinking that it might be my fault, because I was using an x86 OS on a Intel Core Duo system with 4GB RAM. I just downloaded Ubuntu x64 in order to do some memory tests. The system is closing itself during the tests. Which can be the reason? What can I do? ps: It is a laptop

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• Mouse for a lefty?

  - by Kyralessa

  As a programmer, I'm fairly particular about my keyboard and mouse. One thing I've only recently noticed is that the mice I tend to prefer don't work well for my five-year-old. He's left-handed, but ends up mousing with his right hand on the computer because (a) that's where the mouse is, and (b) most mice are designed for right-handed people anyway. So, a couple of questions: If you're left-handed and you mouse with your left hand, do you have any recommendations on good mice? If you have a lefty in your household (whether or not it's you), is there an easy way to swap settings between left-handed and right-handed mouse buttons? One way is Control Panel Mouse Check the box on the first tab OK. Do you know of anything faster? Or, better yet, what I'd really like is a way to reverse those settings on only one particular mouse, which would be designated as my son's mouse.

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• Windows 7: System date and time resets to 2007

  - by Rogue

  My desktop computer has been upgraded to Windows 7 and ever since whenever I start it up, it resets the date and time to 2007. I tried changing the battery on the motherboard thinking that it would solve, but its still the same. I didn't face this trouble when Windows XP was installed on this computer. Any ideas how to fix this?

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• How to add PTR record for a /16 IP block in BIND using $GENERATE directive?

  - by yegle

  I'm trying to reverse map a block of IP using PTR record to some special name so their usage can be easily reflected by a simple nslookup. For example, here's a nslookup result: # nslookup 172.17.201.101 Server: 10.253.33.1 Address: 10.253.33.1#53 101.201.17.172.in-addr.arpa name = for.internal.use.only. And I learned that I can add PTR record for a /24 block by using $GENERATE directive $GENERATE 0-254 $.201.17.172 PTR for.internal.use.only. So here's the question: Am I doing right exposing infomation of IP address by adding PTR record? Any better idea? If the question above is YES, then how to add PTR record for a /16 IP range? I know I can write 255 lines of $GENTERATE directive but any better solution?

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• How decode xfs lost+found directory

  - by Satpal

  I have managed to trash my homebrew Nas box (an old hp d530 + 2x 750gb sata soft raid1 + 17gb boot disk with ubuntu server 8.10) I have searched the web and tried to repair the file system but to no avail :( I was thinking that the dirs/files located under the root of the lost+found directory are 64 bit numbers. Is there any way that I could decant the number into binary form, from there reconstruct the directory/file structure. More to the point can anyone point to the information on how xfs inodes are broken down(does that make sense)?

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• Software to measure power draw of HP Server

  - by tombull89

  I'm after some software to measure the power draw of a HP Server, namely a DL360 series. I know Nagios is used for logging and monitering but I'm not sure if it logs power usage as well. I've also tried to find the HP Server Management package but am not sure if this shows power usage either. I'm thinking my best bet would to buy some sort of device that goes inbetween the wall and the servers plug. Can anybody suggest what would do for me?

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• Varnish + Tomcat vs Apache + mod_jk + Tomcat

  - by Adrian Ber

  Does anyone have some comparison data in terms of performance for using in front of Tomcat either Varnish or Apache with mod_jk. I know that AJP connector suppose to be faster than HTTP, but I was thinking that in combination Varnish which is lighter and highly optimized could perform better. There is also the discussion between static resources (which I think will perform faster with Varnish than Apache, even with mod_cache) and dynamic pages.

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• Merging Flash animations

  - by Radu

  If I have a Flash project in which there are multiple movie clips animating, each with its own timeline and other embedded movie clips, again, each with its own timeline, how can I merge everything so that I end up with a single timeline and a single layer? If Flash doesn't support this, maybe there's something else out there that can do this? I'm thinking that such a tool would need to calculate the intermediary tween values and somehow create keyframes with those values, then break everything apart and only animate the correct parts from the calculated keyframe values...

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• Multiple PPPoe connection to multiple computers via 1 modem?

  - by Koong

  I have a TP-link Wireless Router TP-WR542G and a Zyxel Prestige 650m-61 modem. I have 2 separate PPPoe accounts from my ISP. I'm thinking of using those 2 accounts simultaneously using my 1 modem. I wanted to have 1 account to be connected to the wireless router and 1 account to my computer. Is that possible? How? TQ

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• How do TAB & SHIFT-TAB get reversed in Entourage?

  - by Daryl Spitzer

  In Microsoft Entourage, I can use Tab to move the highlighted selection from "Inbox" in the left-hand column: ...to the list of email in my inbox: And Shift-Tab returns the selection to the left-hand column again. But once-in-a-while when I return to Entourage (but never immediately after launching it), Tab and Shift-Tab are reversed. That is, I need to use Shift-Tab to move the highlighted selection to the list of email and Tab to return the selection to the left-hand column. I don't know what causes this, and I find it so annoying that I'll restart Entourage just to restore Tab and Shift-Tab to what my muscle-memory expects. What is causing them to get reversed, and can I un-reverse them without restarting Entourage?

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• W3 Total Cache or WP Super Cache?

  - by javipas

  I'm just preparing the setup of a new VPS where I will migrate a WordPress blog with a good traffic (currently, around 40k pageviews a day), and I was thinking about the caching strategy. I've found different ideas and recommendations, but from previous experiences I will setup a Nginx+PHP-FPM+MySQL (LEMP) system on a Linode VPS. I've read also about setting Nginx as a reverse proxy with Apache, and even using Varnish too, but I don't know if all of this can benefit the speed/performance of the blog (that's the only thing that will be installed on the VPS). The question now is... would you recommend W3 Total Cache or WP Super Cache? I've used W3 on some blogs, but I haven't noticed great benefits and don't need all its options, so I think I could give the veteran WP Super Cache a try. Besides, some users have complained about W3 complex configuration and lack of performance (even consumig more CPU) on some cases.

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• Mac OS X Duplex Printing Paper Handling Oddness

  - by Christian Lindig

  I like to print on stationery with a pre-printed letterhead using the Preview.app and a duplex-capable HP PostScript (Color Laserjet 4700) printer. One would think that pre-printed stationery could be placed into one of the trays and then printed on front and reverse side. Unfortunately, the print dialog handles one and two-paged documents differently: the stationery needs to be placed differently into the tray if the document contains one page versus when it contains two pages. This is not obvious when printing on plain paper but becomes obvious once you mark, say, the upper left front corner of pages and then print different documents on them. I checked the PostScript code generated and indeed it is different for one versus two-page documents with respect to duplex printing, probably causing the difference in paper handling. Obviously this makes it difficult to print pre-printed stationery in duplex mode. I expected others to have stumbled upon this but could not find specific help so far. Any ideas? This is on OS X 10.6 and I checked two different printers.

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• How is a VM isolated from the physical host?

  - by dotnetdev

  Hi, I was thinking about virtualisation and how to explain it to a non-technical person and one of the things that I was wondering was how to explain the way that a VM is isolated and seperate from the phyiscal machine (so I can have a virus on a VM but this would never effect my physical host, right?). How does this technology work exactly? As I am a programmer, when I think of isolating processes, I think of using appdomains (I work with C# primarily). Thanks

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• Mail Reversing (Opposite of Forwarding)

  - by Duall

  I know mail can be forwarded, e.g. mail I receive will be sent to another account. However, can the reverse be true? That mail can be sent out and be delivered to another account before being sent to it's intended address. For instance: Guy #1 sends an e-mail to Guy #2 Guy #2 gets the e-mail, and passes it on to Guy #3 as well; mail forwarded. Guy #2 sends and e-mail to Guy #1 Guy #3 receives the e-mail on its way out. If this is possible, how would I go about this on an Exhange server 2007? And what would this be called anyways? It can't be mail reversing!

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• Cork Board Solution to tack things up on top or to the side of a monitor

  - by Bela

  I'm trying to find some sort of physical product that would either go on the top or the side of an lcd monitor and give me space to tape/push-pin/post it note things for myself. In my head I am picturing an extra space above your monitor 6 inches tall that lets you tape/push pin things up in front of you. For random notes and things I want to keep track of, having them on the top/side of my monitor would keep the space on my desk itself clear, and they would be closer to my field of vision. Does something like this exist? Do I need to rig up something myself? EDIT This is the closest thing I can find so far http://www.unplggd.com/unplggd/diy-project/reverse-engineer-how-to-feel-up-your-monitor-048251

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