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Write to us at Linux Format, Future Publishing, Quay House, The Ambury, Bath BA1 1UA or lxf.letters@futurenet.com.

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Weird things with newsletter­s, forcibly converting Windows users, loving the MX Linux toolbars and letters make prizes!

Subscriber or not?

I was confused to receive your “recently unsubscrib­ed” newsletter as actually, I had not unsubscrib­ed and I wasn’t aware that my subscripti­on had expired. I had in fact only recently renewed my subscripti­on for another two years!

But I’m a little bewildered, because I also received by snail mail a letter informing me that LinuxUser &

Developer magazine will no longer be published and that the remainder of my subscripti­on will be transferre­d to LinuxForma­t. I’m unsure of the number of issues left of LU&D. Truls,viaemail

Neil says

Accept my apologies for any confusion. As you’ve noticed, these subscriber newsletter­s are fired out from our marketing team, so I suspect there’s a small window of potential confusion between them building mailing

lists of existing subscriber­s and sending the relative “you’re a subscriber/you’ve unsubscrib­e” newsletter­s out, during which the subscripti­on status could change. We also think this very occasional­ly happens with our Archive access: people renew their subscripti­on and technicall­y their old subs number goes invalid, but they might not have realised or received the updated one.

On a related note, it’s very sad news that our sister open source magazine LinuxUser&Developer has recently closed. Existing LU&D subscriber­s can have their remaining subscripti­ons rolled into LinuxForma­t – we hope that’s what people will want to choose! One piece of good news is we’ll have the editor Chris writing for us, at least for a while, and it looks like a number of regular writers will be coming on board. So hopefully new LU&D readers will feel a little more at home here.

Side issues

Thank you for the very positive review of MX Linux 17.1. I help out in a small way on the project, mostly with testing and proof-reading, and I know the developers will be pleased to hear that their work is well thought of.

May I clarify one small point? MX Linux ships with a single vertical panel on the left of the screen. Many of the developers use their creation in their paid jobs, and if working with documents it makes sense to make maximum use of the vertical dimension of the screen. However, some users dislike that panel placement, and were finding difficulty in relocating it to its more convention­al place, and then configurin­g the icons to suit.

To make this easier, the developers created a Tweak category to enable that relocation with just a single click. It’s an example of how the developmen­t team at MX is willing to listen to users’ requests, and respond appropriat­ely. ChrisWhela­n,viaemail

Neil says

Thank you for the details on the sidebar – glad to hear the devs are listening so keenly to their users. I hope you spotted in LXF242 it made our top distros of the year list!

Camera overload

I read the letter in LXF235 asking about a CCTV NVR for 1,000+ cameras. I used to install camera systems and the issue is more about the computer hardware. I built a Linux-based recorder for my house with five HD cameras on two different subnets. I’m recording over 20Mbps from those cameras – about 50GB of video, per camera, per 24 hours. If the writer is trying to build out for 1,000+ cameras at HD quality, that’s over 4Gbps of an aggregate data rate. Even if a server was using 10Gbps NICs, there’s not enough CPU power to process the incoming video and still be able to serve out files. When I did commercial installati­ons, we limited each server to 25 cameras. I also assume no one wants to store 50+ TB of data per day. AaronQuint­o,Colorado

Neil says

We’d love to hear more about how you’d go about solving this problem with Linux.

 ??  ?? We’ll be adding past Linux User & Developer issues to the archive.
We’ll be adding past Linux User & Developer issues to the archive.
 ??  ?? We’ve been loving the MX Linux of late.
We’ve been loving the MX Linux of late.
 ??  ?? Data can quickly build up as you add more CCTV cameras.
Data can quickly build up as you add more CCTV cameras.

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