vmp

Joined 12 years ago

Karma

185

Submissions

Member since

Aug 28

[ my public key: https://keybase.io/hschumann; my proof: https://keybase.io/hschumann/sigs/FjrCBh5pU9PBDrlbU1dQn7yk4I4XqXOhM04NGdwavVQ ]

View on Hacker News

Recent submissions

Comment · 5 years ago

I made a web-extension to add PassMark benchmark results to processors and mainboards with embedded CPUs to allow you to compare the best price per performance: https://addons.mozilla.org/en-US/firefox/addon/sharkys-geizh...

It really helped me make some decent budget builds.

Tried to publish it to the chrome extension store as well but they removed it. Honestly just use Firefox, google is garbage.

Comment · 6 years ago

I suffer from borderline personality disorder and it's rough but usually treatable with lots of therapy and learning of "skills."

The covid crisis made my issues boil over to the point of losing relationships, friendships and attempting to take my own life twice (before I found the therapist).

Comment · 6 years ago

If I made a facemask with that printed on it (as a QR code or whatever) would google stop trying to identify my face? Or would that paint a huge red target on my face?

Comment · 7 years ago

OpenWRT is awesome. Though I have my own story of woe: they switched a very specific WiFi driver implementation to another one which completely broke my 5GHz wifi, it leaked kernel-memory until the AP became unresponsive (fast). Though OpenWRT is so awesome that even someone like me who has no experience with embedded hardware can compile a new firmware with the old WiFi driver and it worked! :)

Comment · 7 years ago

(meme) I figured out why the google outage took a while to recover: https://i.imgur.com/hzcLx5X.png

Comment · 8 years ago

Personally, I've only ever had issues with Ubuntu Server and have since switched back to Debian.

I don't know if I'm extremely unlucky or if the choices I make are really that bad;

- I've hit a bug with amavisd and bitdefender[1]

- Recently, Ubuntu pushed for 'netplan' instead of ifupdown and that didn't work with an empty bridge for LXC[2][3]

- They broke a (convenience) script for remotely unlocking a LUKS rootfs[4]

- postconf segfaulting every 5 minutes[5], nothing bad but it just looks ugly in the server logs

That's the major annoyances that I've experienced in the last 3 years. Never had anything like it on Debian. :/

[1] https://bugs.launchpad.net/ubuntu/+source/amavisd-new/+bug/1...

[2] https://bugs.launchpad.net/netplan/+bug/1736975

[3] https://bugs.launchpad.net/netplan/+bug/1773997

[4] https://bugs.launchpad.net/ubuntu/+source/busybox/+bug/16518...

[5] https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/17534...

Comment · 8 years ago

I wrote a lightweight DNS proxy for this purpose in python+twisted and sqlite3: https://gitlab.com/Sharky/blocklist2bind/blob/master/twisted... which also works really well on a RaspPi 3 with pypy3.

Comment · 9 years ago

The next default compressor might be lrzip [1] by Con Kolivas; I've only see it a couple of times in the wild so far but for certain files it can increase the compression ratio quite a bit.

[1] https://github.com/ckolivas/lrzip

  # 151M    linux-4.14-rc6.tar.gz
  # GZIP decompression
  ~$ time gzip -dk linux-4.14-rc6.tar.gz

  real    0m4.518s
  user    0m3.328s
  sys     0m13.422s

  # 787M    linux-4.14-rc6.tar
  # LRZIP compression
  ~$ time lrzip -v linux-4.14-rc6.tar
  [...]
  linux-4.14-rc6.tar - Compression Ratio: 7.718. Average Compression Speed: 13.789MB/s.
  Total time: 00:00:56.37

  real    0m56.533s
  user    5m35.484s
  sys     0m9.422s

  # 137M    linux-4.14-rc6.tar.lrz
  # LRZIP decompression
  ~$ time lrzip -dv linux-4.14-rc6.tar.lrz
  [...]
  100%     786.16 /    786.16 MB
  Average DeCompression Speed: 131.000MB/s
  Output filename is: linux-4.14-rc6.tar: [OK] - 824350720 bytes
  Total time: 00:00:06.35

  real    0m6.524s
  user    0m8.031s
  sys     0m1.766s

  # Results
  ~$ du -hs linux* | sort -h
  137M    linux-4.14-rc6.tar.lrz
  151M    linux-4.14-rc6.tar.gz
  787M    linux-4.14-rc6.tar

tested on WSL (Ubuntu BASH for Windows 10)

edit:

  ~$ time xz -vk linux-4.14-rc6.tar
  linux-4.14-rc6.tar (1/1)
    100 %        98.9 MiB / 786.2 MiB = 0.126   3.0 MiB/s       4:25

  real    4m25.189s
  user    4m23.828s
  sys     0m1.094s
  
  ~$ du -hs linux* | sort -h
  99M     linux-4.14-rc6.tar.xz
  137M    linux-4.14-rc6.tar.lrz
  151M    linux-4.14-rc6.tar.gz
  787M    linux-4.14-rc6.tar

It looks like XZ still has the best compression ratio but also took the longest (real)time.

Comment · 9 years ago

> ifupdown has been deprecated in favor of netplan and is no longer present on new installs [...]

> Given that ifupdown is no longer installed by default, its commands will not be present: ifup and ifdown are thus unavailable, replaced by ip link set $device up and ip link set $device down.

Sad to see this go; I always use ifup, ifdown and ifconfig. Yes, they're old and clunky tools but in a way they are the staple of a proper Linux installation to me.

Not to mention that it's quite a handful to write out "ip link set $device up".

Comment · 9 years ago

The address, 7 out of 16 characters are fixed.

Comment · 9 years ago

Maybe reducing the entropy by almost half for a vanity key/domain name wasn't such a good idea.

Comment · 9 years ago

I had to turn off DNSSEC support for my Bind9 at home, from time to time pages wouldn't resolve or it would take up to 10 seconds (ages!). When I checked the logs it was something about EDNS packet sizes that tripped it up. Turned EDNS off (and DNSSEC with it) and had no issues what so ever. It's a pretty standard installation with a few master zones and it's resolving queries directly - without forwarding to ISP or GoogleDNS or anything.

Comment · 9 years ago

A shame, but understandable. :)

Comment · 9 years ago

> Available to all G Suite editions

Sounds like only to G-Suit customers, maybe they expand to everyone at a later date.

I just checked my free (grandfathered) GSuite account and there is no option for it (yet?).

Comment · 9 years ago

I had not heard of this, I'll check it out, thanks!