Red Hat Certified Architect Level III Unlocked.
I just got my EX407.
Red Hat Certified Architect Level III Unlocked.
I just got my EX407.
I just came across this article about captive portals (these annoying websites that force you to a “accept TOS” page on public wifis) that we all hate so much.
I can only agree with what’s said in there, to 200%, but it’s even worse than that: A captive portal is a real danger to the security of your mobile device.
An attacker could easily setup a microcomputer for 15$ to run as access point, and send out the SSID of a well known public WiFi, and then redirect every client to a version of that WIFI’s captive page that has malicious things built it. It could trick you into giving away your credit card information, social security number, or any other valuable information, or maybe even worse, install backdoors on your device.
Say NO to captive portals.
Humble Bundle has a new bundle out, the Hunie Sakura bundle.
Why I’m talking about it here? Because most of the games in it are available in steam on linux.
Have a lot of fun!
The script operates under a few assumptions (yes I know, assume makes an ass out of you and me), but what can you do, except calling them prerequisites:
If all this is true, running the script will create a backup of your current repository structure under /etc/zypp/repos.d_(current_version), and a repo setup for the target version under /etc/zypp/repos.d_(target_version), and then link the new structure to /etc/zypp/repos.d, and after that it will clean zyppers cache, refresh all repositories, and tell you the commands to execute to actually run the upgrade.
You might want to do those commands inside a screen session. You have been warned.
This script is provided with no warranty at all. Use it at your own risk. If you break things you get to keep the pieces.
If by any chance your root filesystem is on either LVM or btrfs, do a snapshot before you start upgrading your system.
Download the script here: leapup.tar.xz
So far I have used this script on two desktop systems which each use 20++ different repositories from OBS and packman, and no problems (aside from a few glitches in 42.3 that are connected to the nvidia drivers, but not to this upgrade process).
Update: in the last 4 days I updated five different machines using my script: my desktop computer which runs with 23 different repositories from OBS, my laptop and my work laptop which both run with 25 repos, my cloud host which runs with 10 repositories and my internal server/firewall which also runs with 10 repositories… no problems so far.
Update: There is now a RPM package for openSUSE Leap 42.3 and 15.0 here: https://software.opensuse.org/package/leapup?search_term=leapup
…or is it maybe being broken by people who think it is broken?
I’m pretty sure a lot of people here in Germany have heard the common complaint about end user internet connections being slow in the afternoon and evening because “everybody is watching netflix now” and similar stuff.
I was voicing the same complaint, over and over. My 400MBit cable link at home would drop down to under 80MBit in the evenings, and in downspikes go as low as TEN megabit/second. So I started measuring regularly with speedtest-cli which measures against the closest speedtest..net server, and the graphs in munin were pretty awful. Every day at around noon the performance would start to drop, and go down to around 50mbit by 11pm, and then after midnight would normalize again.
but, here’s the thought: What if it is not actually my internet connection?
What if it’s because everybody thinks their internet connection is bad, and starts hitting the speedtest.net servers so hard that they start to slow down?
… So I switched to measuring against a speedtest.net mini server that I’m hosting myself, and no-one else uses… and guess what. My internet performance still drops in the afternoon and evening, but nowhere as dramatic as before.
Makes you think about self-fulfilling prophecies, or maybe internet speed is related to Schrödingers Cat.
Edit: Here are two bandwidth graphs from my connection. The first one’s from when I was measuring against the official speedtest.net servers:
The second one was created the same way, but instead of using a random speedtest.net server for every data point I have been measuring against my own speedtest mini server on my cloud host:
I just hope that that new test site run by the Bundesnetzagentur has enough power to handle the load without drooping.
this time I went directly from 13.2 to Leap 42.2, skipping the intermediate step of Leap 42.1…. and no problems. I like that.
For your convenience here is the link to how I do this.
Oops I Did It Again…
Live Upgrade, with my tried and trusted method. By now that method is so polished that I had no issue whatsoever, so I did all three computers at the same time. I’m just glad to have a decent internet connection… I think the total downloads added up to somewhere near 15 gigabyte.
I upgraded my laptop to Leap 42.1 the other day, using the good old method that I’ve been talking about a few times. Worked without major issues, I just had to manually fix the repository URL in a couple of the repositories I’m using.
Now I’m on 42.1 using Plasma 5, and so far I mostly like it. A few features and settings have gone from parts of the kdepim suite, and there is one weird glitch-error where starting kopete gets me a weird “file: ioslave has been terminated” error, that I’m sure is somehow related to kopete styles. Maybe when I’ll do my desktop I’ll do the upgrade to Leap first, and then the upgrade to the latest plasma5, and not the other way around like on this laptop.
On the whole I’m happy with what I have here.
One little thought just keeps nagging me:
How come that Plasma 5 with the breeze style looks a LOT like Windows 10? …, wait, Windows 10 came after Plasma 5, right?
Edit, 2016-09-14: Turns out I should have done the upgrade to Leap 42.1 first, and THEN the KF5 update. I had some repositories enabled that should not be mixed. Disabled the bad ones, zypper dup -l, all is well.
To whom it might concern:
My regular email address now works as a jabber/XMPP address as well.
If you do not know my regular email address this information does not concern you 😉
I just finished a major heart surgery on my laptop. Many thanks to the guys who made some youtube tutorials about taking that laptop apart! The Acer E5-571G is definitely NOT built to be taken (apart) lightly (Here is the german tutorial that I was following, and here is an english one).
After swapping out the 2x 4G memory modules for 2x 8G ones, and the 1TB laptop hard disk drive for a 1TB SSD disk, and putting everything back together, the real fun began:
Then the linux fun begins, but be aware that this method will only work if the existing linux installation on the old disk was based on a LVM setup!
mount -o bind /dev /mnt/dev mount -o bind /sys /mnt/sys mount -o bind /proc /mnt/proc
chroot /mnt /bin/bash --login
That’s it folks!