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Messages - Mark Greaves (PCNetSpec)

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1
General Help & Advice / Re: Netbook won't connect to internet
« on: Yesterday at 10:50:15 pm »
Down by the clock (bottom/right of screen) you'll see a wireless network icon .. normal left-click it, and you should see a list of available wireless networks .. click YOUR network, and you'll be prompted for the wireless key .. enter it and click "Connect" .. you should now be connected.



2
Great stuff :)

3
Hardware Compatibility / Re: USBs and DVDs not working
« on: March 12, 2019, 09:09:51 pm »
For a USB stick, try setting the first boot device to USB ZIP-DRIVE, and enable Legacy USB support as mentioned here
https://www.motherboardpoint.com/threads/a7n8x-deluxe-booting-from-usb.11042/

Are you sure the DVD drive is working properly ?

4
General Help & Advice / Re: Sticky Notes not working after upgrade
« on: March 11, 2019, 09:04:45 pm »
You may be better off asking on the Mint forum Tramlink .. I know sod all about these Cinnamon "spices" applets and how they work.

5
You should probably try the latest 418 first.

6
General Help & Advice / Re: Intrepreting CPU info
« on: March 09, 2019, 03:25:55 pm »
If I have this right - is a vulnerability exploited by a rogue script on a webpage?  If so, would using an up-to-date browser (Firefox, in my case) and enabling UFW (I have) prevent any such script from deploying?  Or am I way off beam here?

You're right and wrong at the same time .. most exploits would require local access, and YES some could theoretically be leveraged via a rogue website.
(and NO, UFW or an up-to-date web browser on their own would not stop a remote exploit via a website, because you'd likely give permission for it to run)

An up-to-date browser is certainly ONE of the mitigations (or put better 'an integral PART of a mitigation strategy') but it is NOT a fix (or protection) in it's own right.

Current mitigations seem to revolve around making the clock too course grained to allow for the very precise timings required by an exploit .. but new ways to work around these mitigations continue to be discovered, so new road-blocks (mitigations) put in their way .. as I said, there is NO fix for this in software, only hardware. Until the hardware is fixed it'll be a continuously running battle.

All you can do is stay on top of updates .. but you should be doing that anyway right ;)

7
General Help & Advice / Re: Intrepreting CPU info
« on: March 07, 2019, 09:23:32 pm »
There's little point in panicking because there's nothing you can do .. it affects pretty much all CPU's and all OS's that run on those CPU's.

Until the chip manufacturers redesign their CPU's you can't even replace the hardware (because their current lines are also vulnerable).

Okay you could switch to some ARM CPU's that aren't vulnerable, or very early CPU's that don't utilise speculative execution, but then you'd be computing on a snail.

8
General Help & Advice / Re: Intrepreting CPU info
« on: March 07, 2019, 08:24:21 pm »
The line:-
Code: [Select]
bugs      : cpu_meltdown spectre_v1 spectre_v2
just tells you that your CPU is one of those affected by these vulnerabilities .. it does not tell you if your current kernel is patched against them.

The best way to discover that would be to download this script:
Code: [Select]
wget https://raw.githubusercontent.com/speed47/spectre-meltdown-checker/master/spectre-meltdown-checker.sh
then mark it as executable:
Code: [Select]
chmod +x spectre-meltdown-checker.sh
then run it with elevated privileges:
Code: [Select]
sudo ./spectre-meltdown-checker.sh
that should tell you if you're vulnerable or not.

Although it should be mentioned that as this is a HARDWARE issue (and there's no way software can change hardware) there is NO complete software fix for Spectre and never will be .. it will ALWAYS just be ongoing mitigations against newly discovered Spectre variants, so keep on top of updates.

9
General Help & Advice / Re: Intrepreting CPU info
« on: March 06, 2019, 11:38:29 pm »
No idea .. if I had to guess

size = what clock frequency the CPU is CURRENTLY running at (remembering modern CPU's don't run flat out all the time, they automagically throttle themselves when noyt under load

capacity = the maximum clock frequency the CPU can handle

clock = ABSOLUTELY no idea here, I was going to guess the bus speed before multiplying, but my i7 says 100Mhz and I'd find it difficult to believe it was on a slower bus (though not impossible) :-\

In any case, for info about your CPU you'd be better served by
Code: [Select]
cat /proc/cpuinfo
than
Code: [Select]
lshw

10
General Help & Advice / Re: How to remount /proc to be writeable
« on: March 06, 2019, 02:02:54 pm »
I don't get you .. you're scared of remounting it read/write. but you wanna remount it read/write ?

11
General Discussion / Re: Help with Opendocman Installation on Ubuntu
« on: March 04, 2019, 02:06:30 pm »
This seems like a similar issue some people suffer with wordpress installations
https://stackoverflow.com/questions/32686663/error-the-file-wp-config-php-already-exists
try clearing your browser cache to clear the first access redirect.

12
General Discussion / Re: Virtual DJ for LinuxnMint 19.1
« on: February 23, 2019, 08:55:14 pm »
You're most welcome :)

Mixxx seems to have a great user manual linked at the top of their homepage
https://www.mixxx.org/manual/latest/
which can also be downloaded as a pdf
https://www.mixxx.org/manual/latest/en-GB/Mixxx-Manual.pdf
and a support forum
https://www.mixxx.org/forums/

Not bad for free eh! :)

13
General Discussion / Re: Virtual DJ for LinuxnMint 19.1
« on: February 23, 2019, 05:27:27 pm »
How about Mixxx and/or TerminatorX

They're in the default repos .. to install just run:
Code: [Select]
sudo apt-get install mixxx
and/or
Code: [Select]
sudo apt-get install terminatorx

websites
https://www.mixxx.org/
and/or
https://terminatorx.org/

[EDIT]

There is also BpmDJ
http://bpmdj.yellowcouch.org/index.html
but that requires Java, and isn't in the default repos.

Or depending on what you're trying to do, maybe just audacity would do
https://www.audacityteam.org/
which is also in the repos
Code: [Select]
sudo apt-get install audacity

14
General Discussion / Re: Email hacked?
« on: February 23, 2019, 05:14:48 pm »
If you think it may be a browser hack, why not just delete the browser profile (giving you a clean browser) .. THEN reset the password on the email account ?

But is your Linux PC the only PC you use to access your email ? .. and if it's webmail, anyone that could log in would have access to the contacts wouldn't they ?

I should add I'm still not convinced there was a breach in the first place .. I often get messages from Google saying "an unknown PC was used to access my account" and it was me.

And a friend of mine who uses Opera's built in proxy is forever getting locked out of his Google accounts.

15
General Help & Advice / Re: Booting Linux Mint 19.1 XFCE slow
« on: February 23, 2019, 05:10:47 pm »
Does running
Code: [Select]
sudo journalctl --vacuum-time=1d
speed up your next boot ?

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