100SILEX, de 0 ŕ 100 s: PCB
1522 5 Simple steps to secure TT-RSS reader
secure tt-rss, tt-rss security
5 Simple steps to secure TT-RSS reader
July 27, 2015 by Anand Leave a Comment
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We recently presented Tiny Tiny RSS to you as a great alternative to Google reader, which is one more way you can extend the functionality of your home server or your hosting space. Hopefully, you already exported your data from Google Reader. In this post, we will show you how to secure TT-RSS reader to prevent unauthorized access. Tiny Tiny RSS is an open source web-based news feed (RSS/Atom) reader and aggregator, designed to allow you to read news from any location, while feeling as close to a real desktop application as possible. As we previously explained, it makes an ideal candidate to replace Google Reader. While there are services like Feedly and Newsblur grabbing the crowd Google Reader, which some of you may prefer, there are a group of people who would like to run a RSS reader on their own server and keep things private. Assuming that you have already installed Tiny Tiny RSS on your alternative to Google reader or hosting space, we will now show you how to secure TT-RSS reader.
Secure TT-RSS Reader
One of the main reasons to move to an RSS aggregator like TT-RSS is maintaining your privacy. So if you do not secure TT-RSS reader well you are not only making your data available public but also making your system vulnerable to potential attacks. Choosing a strong username and password while setting your TT-RSS is the first basic thing that you can do to secure TT-RSS reader. Listed below are few more ways you can increase TT-RSS readerâ€™s security.
1. Rename TT-RSS Folder
One of the first lines of defense is to not use tt-rss in your URL to access your TT-RSS reader. To do this on your hosting account, use a folder name other than tt-rss while installing TT-RSS. On your Linux home server, edit /etc/tt-rss/apache.conf and change the first /tt-rss to something else. An example is shown below.
TT-RSS Rename URL
TT-RSS Rename URL
After making the change, restart your TT-RSS and Apache to apply the changes:
sudo service tt-rss restart
sudo serivce apache2 reload
Your TT-RSS reader is now available through the new URL (example: http://mydomain.com/myreader) only.
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2. Enable SSL
Accessing TT-RSS through http sends all information as unencrypted data. This could mean less privacy due to potential sniffing. The solution is to encrypt the data during transfer, which makes sniffing by hackers harder. To enable and enforce HTTPS access on Linux servers with Apache, install the following run-time libraries:
sudo apt-get install libssl0.9.8 libpam0g openssl
Restart your Apache server as shown above. You should now be able to access your TT-RSS reader with HTTPS. Note that you may have to have a SSL certificate generated. Refer to Apache documentation if you want to generate your own certificate. By default, the system will install self-signed certificates for you. These certificates are likely to raise warnings when you point your browser to the site.
3. Disable Single User Mode
By default the single user mode is already disabled (in /etc/tt-rss/config.php). Enabling single user mode will also disable TT-RSS login system. Therefore, keep the single user mode disabled.
Disable Single User Mode
Disable Single User Mode
A better way to make it a single user system is by limiting the number of registrations to 1 as described below. For whatever reason, you still want to enable single user mode, make sure you implement Apache Authentication method described below.
4. Self Registrations
Self registrations allow a visitor to register themselves, which could reduce TT-RSS security. If your TT-RSS will be for personal use only, then you may want to disable user registration by setting â€śENABLE_REGISTRATIONâ€ť to â€śfalseâ€ť.
TT-RSS Self Registrations
TT-RSS Self Registrations
To further secure TT-RSS Reader, uou may also want to change â€śREG_MAX_USERSâ€ť to â€ś1â€ť to make your account the only account on TT-RSS.
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5. Apache Authentication
Last but not the least, enable Authentication. This is even more important if you have enabled â€śSingle User Modeâ€ť describe above. Every time you access TT-RSS, you will be asked for a username and password as shown in the picture below:
Secure TT-RSS Reader
On your hosting account this equivalent to password protecting a directory, in this case the TT-RSS directory. To do this on your Ubuntu server, you will have to create a .htpasswd file. More information is available in Apache documentation. But the easiest way to achieve this is to use one of the htpasswd generators available online.
After you enter the username and password two code blocks will be generated. Copy the contents of the .htpasswd code block and save it to /etc/apache2/.htpasswd_ttrss. Next, copy the contents of the .htaccess code block and add it to /etc/tt-rss/apache.conf as shown below:
TT-RSS Apache Authentication
TT-RSS Apache Authentication
Save and exit. Restart both TT-RSS and Apache previous shown above. You should be prompted for a password every time you try to access TT-RSS. Some may think that this double authentication method is an extra inconvenience. But I would rather be safe than sorry.
Go ahead, secure Tiny Tiny RSS Reader and enjoy reading articles on your private secure RSS Reader.
1440 Comparison of EDA PCB software - Wikipedia, the free encyclopedia
1411 Homelab - server at home
1408 Â» Cut simple SMT Stencil from common aluminum flashing on your CNC Animodule.com
Cut simple SMT Stencil from common aluminum flashing on your CNC
Hereâ€™s a quick photodoc of how I made a reusable SMT stencil from some aluminum siding I had laying around. Itâ€™s very simple to assemble and works great. Dirt cheap too.
I had picked up a roll of aluminum flashing a few years ago to flash some chimneys I rebuilt/repointed and was curious to see how it would hold up as an SMT stencil.
To buy an SMT stencil frame is near $1000 so I didnâ€™t have much to lose if it didnâ€™t work out.
I cut the frame out of some birch plywood since I had some handy. Really any sturdy frame would do the trick. You could easily glue one together out of some 1x or trim board.
I put a thicker sheet of aluminum down underneath the flashing to give the CNC endmill something sturdy to cut against and clamped it down stretched and tight. My thought there was that If I cut straight on the MDF it might push on the flashing and bend it before it cut through.
A 1mm endmill did the trick. Each pass was .05mm deep.
I pulled the Flashing tight and stapled it to the frame. No rocket science here. I taped up the inside edges so no solderpaste could squeeze between the frame and the stencil.
I had some old screen print hinge boards so I just attached this frame the same way I would a screen print stencil.
The only fiddly part was aligning the first PCB. You have to push around a little and lift the stencil and fiddle with it a little bit. Once I get all the pads lined up correctly I hold it in place and trace around it with a thin tip sharpie marker.
Then you place the PCB in the outline. If you have the height adjusted correctly the stencil is sturdy enough to hold the PCB in place while you print the Solderpaste on it. just hold the stencil frame down and it pushes down on the PCB.
I used a flexible putty knife as a squeegee. It worked fine.
Cleanup was a breeze. Just scrape it off, unscrew the stencil frame from the hingeboard and stick it in the corner till you are ready to do another run.
1407 Homelab - server at home - Graver un PCB de faĂ§on efficace et bon marchĂ©
- La lampe halogĂ¨ne du salon
- Les tubes nĂ©ons Ă ultraviolets
- Les diodes LED Ă ultraviolets
Voici mon bac Ă U.V.
Il n est pas beau, mais est parfaitement fonctionnel !
Ding-Ding !!! Le temps est Ă©coulĂ©, coupez votre bac Ă U.V. et passez Ă l Ă©tape 2 - La rĂ©vĂ©lation.
De la soude caustique ou du dĂ©boucheur Ă©viers c est pareil et le second est peut ĂŞtre moins cher !
Une fois votre solution bien mĂ©langĂ©e, plongez y votre circuit insolĂ©.
Agitez doucement le bac en plastique pour que la solution produise tout son effet.
Agitez le bac jusqu Ă ce que vous soyez certain que tout le vernis ai disparu de la plaque insolĂ©e.
Votre solution transparente va devenir bleuĂ˘tre durant la phase de dissolution du vernis (c est Ă cause du vernis)
1400 Gravure de CI Â Â Â Â Â [ PafGadget ]
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1167 How to Solder an SMD LED | eHow.com
How to Solder an SMD LED. The small size of the SMD (Surface Mount Device) component and the confined workspace of the PCB (Printed Circuit Board) are the challenging parts of SMD soldering. The best approach is to obtain the proper equipment and to plan out the process, before you actually begin. Working with an LED (Light Emitting Diode) is no...
986 Arduino Blog Â» Blog Archive Â» CHEAP, FAT and OPEN
Jacob Remin, at CIID will present on August 27th, his Arduino-compatible sound synth. There are many projects out there aiming musicians that use Arduinoâ€™s IDE as a programming platform, but Jacobâ€™s wins them all when it comes to the PCBâ€™s shape. Take a look at the picture here and explore his thesisâ€™ blog for more information and videos where he shows the system at its full power.
(c) 2009 Cheap, Fat, and Open by J. Remin
As for today he hasnâ€™t published the videos using the final PCB, yet. However you can get a sneak preview to how it will be to play with it at the prototype he hand-wired using bits and pieces from a Stylophone, an LCD, some buttons, and other parts.
772 16 Step Sequencer (With improved PCB) (+/-9V to +/-15V)
Article by Ray Wilson
Back to "Music From Outer Space" Analog Synth Pages
Watch Thomas White's Excellent
Sequencer Videos on YouTube
http://www.youtube.com/watch?v=s5cx6Z7wDOg Thomas White used the MFOS sequencer boards to produce this incredible rotary sequencer. Visit his site to keep up with his latest awesome projects.
Improved PC board (far less kludging).
Produces sequences of 4 to 16 steps in length
Modes include stop at count, reverse at count,
reset at count and random 16 mode
Each step has coarse tune, fine tune, and switchable gate
Accepts external clock and external start pulse.
Simultaneous outputs with and without portamento.
Forward, Back, and Reset controls ease sequence set up.
Please see the pages at 16 Step Analog Sequencer Circuit for details regarding circuit descriptions etc. This page is here soley as a vehicle to present the new PC boards and support board purchases. The schematic and PCBs presented here incorporate all of the improvements and modifications shown on the previous sequencer pages. Panel to board wiring is presented here. Please browse the entire page before ordering board to ensure you understand the circuit and there is enough information provided here for you to successfully complete the project prior to purchasing PC boards. Thanks.
565 Inside Alesis A6 Andromeda | Ibsendesign blog
Inside Alesis A6 Andromeda
Here are some pics Iâ€™ve shot during the reconnaissance inside my A6 (taking some measures before pimping it with some custom made wooden cheeks). Itâ€™s quite surprising that its guts are not that complicated as it may seem looking at itâ€™s interface. Very clean layout and good engineering (with tons of silicone glue, WTF?). The only con is that in order to remove those original cheeks I have to disassemble all the PCBâ€™s attached to the front panel â€“ and probably all the pots! Teh drama.
547 Din Sync: How to modify a Korg Monotron
So here's how to modify Korg's new Monotron analog ribbon synthesizer. Perhaps this is the first document of Monotron mods in Europe since it still hasn't been released here.
It's actually a very easy machine to modify because for whatever reason Korg decided to label all the interesting points on the bottom side of the PCB. This may well have been for testing units at the factory/service centers. Perhaps though it could have been that the designers anticipated this little machine would be hacked, much like the Gakken which pretty obviously inspired this piece. Incidentally in the magazine that comes with the Gakken there's a picture of them showing it to Korg, that was in 2008, go figure.
523 Yamaha CS-01 Resonance Mod
Just to get this up here. I hope to make this clearer soon...
This shows how you can modify the Yamaha CS-01 Mk1 to:
1) have variable resonance control, by hijacking the Breath Control VCF potentiometer
a) remove the 10k resistor near the VCF chip.
b) cut the traces (or lift the pins) of the Breath Control VCF pot that connect it to GND and the Breath Control jack. I lifted the pins just to avoid cutting PCB traces
c) remove the 39k resistor tied to the wiper of the VCF pot.
d) solder wires from one side of the pot and the pot wiper and run these wires over to the holes that used to contain the 10k resistor near the VCF chip
e) I'd suggest adjusting the resonance trimmer that's near the VCF chip to make your new Resonance control self-oscillate near the end of the rotation. why? because this filter gets out of control in a very loud and dramatic way. I don't think this VCF chip was designed for stable self-oscillation - that may explain why, in the CS-01 Mk2, when they gave you analog control of the resonance, they used a different 24dB VCF chip.
2) have variable VCA "drone" by hijacking the Breath Control VCA potentiometer.
a) remove the 1k resistor that grounds usually-closed terminal of the breath control jack to GND
b) solder a 47k resistor from the ungrounded, non-wiper terminal of the pot to -9V.
c) when the VCA drone pot is now fully on, you'll always get a DCO-VCF signal running to the power amp. this mod keeps the VCA only partially open, and you can still superimpose the EG over the drone. I did this because I don't have a spec sheet on the VCA chip and I didn't want to risk having the EG slamming the VCA while the drone was going full on (basically, I don't know the max CV that the VCA chip can tolerate). so if you just use the drone, you'll have to increase the volume at the power amp. But now the front-panel VCA slider actually becomes useful, since if you don't want the EG to affect the drone, just turn that down to nothing!
Sorry I don't have actual pics of the mod up! Perhaps someday soon...
423 MACBETH STUDIO SYSTEMS
Welcome to MacBeth Synthesizers!
LATEST NEWS: 20/07/09 please scroll down for infoOver the last year and half or so, more products have been developed. Work has gone into the design of a new modular
synthesizer system shared by two formats- the 3U format and the 5U format. The designs are relatively new but still
retain the inherant qualities of the M3X, M5 and M5N synthesizers. The system is called the X-Series Modular Synthesizer
after the popular M3X and its protĂ©gĂ© keyboard synthesizer the X-Factor. This fully analogue keyboard is still under
serious development and there will be more information to follow on that one.
As a refreshing change from making the large scale semi modular M5 and M5N, I am now delving into the production of
smaller, free for all systems that will probably grow large! I'm taking into it all my experience of designing both large and
small analogue synthesizers as well as a few new ideas too. Please take the time to look around this website. In each
catagory there is product information, sounds, tracks and links to other related media on the internet.
Currently the 3U X-Series Dual Oscillator and 'Backend' Filter Combo are in production. I expect delivery of the
Dual Oscillator within the next two weeks- shortly after that the 'Backend' Filter Combo will roll out of production.
Please contact any of the Distributers listed to get your modules.
I intend to produce a short run of the 5U modules soon, so once again- stay tuned for that...
...anyway! I have uploaded quite a few demo sounds on here- maybe not to everyones taste- but at least they make
you think of what these modules could do in the right hands, i.e. you!
- after all- I'm an engineer, not a muscian as such!...Well you decide!
All MacBeth Products are built to exacting standards- from materials selection to the physical build.
The PCBs and Sheet Metalwork are fabricated by Zot Engineering from Musselburgh, Scotland http://www.zot.co.uk
and final assembly is performed by Diatron Assembly Systems from Norwich, England http://www.diatron.co.uk
Both companies also manufacture equipment for the medical, military and aerospace sectors of industrial engineering
299 Downloads - Measurements Using PC
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235 MATRIXSYNTH: Alesis Andromeda A6 Aurora Mod
This was a custom mod. I originally put a post up in August of 05 here. Anyone know the website where more info on this mod is hosted? I accidentally lost the link when mucking around with Blogger's settings a while back.
This image via Photobucket
Update: I found the original site but it is down. Some info and additional shots pulled from the Internet Archive Way Back Machine. You can find some thumbnails there, but most give you a 404 if you click on them for the larger shot. I pulled the large pics below before they are gone forever.
"Alesis made Synthesis History when they released their Alesis Andromeda A6, an analog polysynth bred with new technology and classic analog sound! Sixteen awesome voices with two types of filters, a vast modulation system, and enough bells and whistles to make the Andromeda A6 THE most highly featured analog polysynth in existence. If it only had a sloped panel...
* Take one Andromeda, lightly used (but out of warranty - very important!)
* Add one black on blue BETA Panel - because the pre-production beta panels were lacking the Pre- and Post-Filter Mix VIEW buttons, either the buttoncaps must be pulled off of the switches on the PCBs OR two holes need to be carefully drilled through the panel to accomodate. I drilled the holes after measuring about fifteen times each.
* Tilt that panel at approx. the same slope as the Korg MS-20. Requires the extending of a couple of ribbon cables inside, and some pop-rivetted braces. Not too hard.
* Custom wood endcheeks of nice Oak, plus a wood accent over the keyboard. I chose to go with thick, high quality wood to make Aurora more of a beast.
* Replace all green LEDs with red high-intensity ones. This also required changing some resistor values to increase the brightness.
* Replace the LCD with a Hantronix Blue-on-White display. Also, some resistor changes are needed.
* Have a very agreeable Alesis burn a custom Boot EPROM with the custom-designed bootup screen below.
* Build a custom top panel, complete with several additional controls (two joysticks, several switches and knobs) as well as a full 16-channel mixer with level and pan per channel, one for each of the 16 individual outs on the Andromeda.
* Add lots of careful, hard work and time, and PRESTO - you have the Aurora A6!
The Name: I went with Aurora for a couple of reasons.
1. Alliteration - AurorA - AndromedA - get it?
2. There is some legend/lore as to how the Alesis Andromeda got its name. Could be related to the Greek mythos. Could be related to the Andromeda galaxy. Could be darts thrown at dictionary pages :-) In any case, Aurora fits with the mythology bent because in Roman mythology, Aurora was the goddess of the dawn (Andromeda was rescued and married by Perseus in Greek mythos). Aurora also fits the 'celestial' thing as well, as the Aurora Borealis. Either way, it kept with what might have perhaps been Alesis' reasons for naming the Andromeda.
3. I just liked it.
4. The A6 is kept because this fits with Alesis' naming convention (QS8 = 81-key QuadraSynth, A6 = 61-key Analog). There is some rumor that A6 was a play on ASICs, the custom chips within Andromeda, but I'm assured this is just rumor :-) "
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