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Preview: DragonFly BSD Digest

DragonFly BSD Digest

A running description of activity related to DragonFly BSD.

Last Build Date: Wed, 17 Jan 2018 23:02:34 +0000


rcmds recently removed

Wed, 17 Jan 2018 23:02:34 +0000

The commands rcp(1), rlogin(1), rlogind(1), rsh(1) and rshd(1) have been removed from DragonFly.  There’s a net/bsdrcmds port if you still need them…  though I imagine/hope ssh is filling the void for everyone.

morse(6) now encodes and decodes

Tue, 16 Jan 2018 20:49:19 +0000

I’m sure this was needed by someone: morse(6) can now encode and decode Morse code, signified by . and – of course.

One more microcode tip

Mon, 15 Jan 2018 20:02:39 +0000

I say “one more” like I know when this saga will end.  If you are using the devcpu-data port to update your processors, you’ll need to add microcode_update_enable="YES" to your /etc/rc.conf, as Sepherosa Ziehau points out.

Lazy Reading for 2018/01/14

Sun, 14 Jan 2018 13:50:21 +0000

This is almost all link overflow from last week – and next week’s edition is almost complete.  There’s a lot to read lately! drill if you can, dig if you have to, nslookup if you must.  (also via) Free-Net history.  I grew up with Buffalo Free Net. Xerox Alto zero-day: cracking disk password protection on …

In Other BSDs for 2018/01/13

Sat, 13 Jan 2018 13:49:51 +0000

A full slate of BSDs this week. Church of BSD.  From 2005, and it is accurate for that timeframe.  (via) ADOM, newly updated at 3.0.6, but only at 1.1.1_6 in ports/dports, pkgsrc, and two years gone in OpenBSD.  But the ADOM download page lists new BSD versions?  I may not have investigated far enough. OPNsense® …

HAMMER1, mounted and unmounted cleanup

Sat, 13 Jan 2018 00:47:06 +0000

The regular maintenance scripts for HAMMER1 assume that it’s mounted at the time of cleanup.  If you have them unmounted, they won’t go through that regular maintenance, but it’s easy enough to fix.

BSDNow 228: The Spectre of Meltdown

Thu, 11 Jan 2018 23:09:17 +0000

Continuing the all-Spectre, all-Meltdown week here at the Digest, BSDNow 228 talks about it for FreeBSD and will cover more next week.  And oh yeah other news, including a mention of new-to-me NomadBSD.

IBRS and IBPB support in DragonFly

Thu, 11 Jan 2018 18:43:20 +0000

Matthew Dillon posted a summary of IBRS and IBPB support in DragonFly, and some numbers showing its impact in various configurations of options and CPUs.

Even more Meltdown

Wed, 10 Jan 2018 22:57:11 +0000

Are you tired of hearing about Meltdown/Spectre yet?  Doesn’t matter!  The two sysctls for controlling mitigation in DragonFly have been renamed: machdep.meltdown_mitigation machdep.spectre_mitigation They go to hopefully sensible defaults, but Matthew Dillon has done some testing to show the effects of each in various combinations.   (Update: more changes and tests.)  Note that this is not …

Microcode updates on DragonFly

Tue, 09 Jan 2018 17:27:38 +0000

One side effect of Meltdown/Spectre are CPU microcode (firmware) updates.  For future needs: sysutils/devcpu-data is the port that has the updates for Intel, and cpucontrol(8) is the program you run on DragonFly to add them. I haven’t used this myself, yet, so I can’t tell you how necessary an immediate update could be – but …

More Meltdown fixes

Mon, 08 Jan 2018 15:26:00 +0000

If you’re on the bleeding edge of DragonFly and already updated for Meltdown fixes, there’s a few more commits you’ll want to get. Matthew Dillon wrote a summary of the current status, noting there’s not much you can do for Spectre beyond new hardware.   There is an update to the “defensive browser setup” plan for …

Lazy Reading for 2018/01/07

Sun, 07 Jan 2018 13:46:27 +0000

I had to trim this down; there’s been a post-Christmas surge in material. Always good to start the year with new (to me) Mickens: Life as a Developer.  (via) Learn – Computer-Aided Instruction on Unix.  A UNIX tutorial program from 1979.  (via) Espple – Apple 1 Emulator with PAL RF Output.  (via) The History of …

In Other BSDs for 2018/01/06

Sat, 06 Jan 2018 13:52:03 +0000

Note the non-profit link; that may be useful to you. BSD on New Hardware. BSDCAN2017 Interview with Peter Hessler, Reyk Floeter, and Henning Brauer.  (video) Moving bacula-sd into a FreeBSD jail. As noted here in a comment, you can name a BSD non-profit as a recipient of the ‘commission’ from Amazon purchases.  Doesn’t cost you …

BSDNow 227: The long core dump

Sat, 06 Jan 2018 01:53:59 +0000

I’m a bit late posting it, but: BSDNow 227 covers Open, Free, and Net this week.

Meltdown and Spectre and DragonFly

Fri, 05 Jan 2018 18:44:34 +0000

By now you’ve probably heard of the Meltdown/Spectre attacks.  (background rumors, technical note)  Matthew Dillon’s put together a Meltdown mitigation in DragonFly, done in four commits. It’s turned off and on by the sysctl machdep.isolated_user_pmap – and defaults to on for Intel CPUs.  Buildworld tests show about a 4-5% performance hit, but that’s only one form …

Fixed up archives

Wed, 03 Jan 2018 17:20:40 +0000

A minor bit of housekeeping: the archives page has been fixed up to correctly list all categories, and list posts grouped by month.  So if you want to see what I posted under the roguelike category, or see what I posted in February 2011, you can.  Post counts provided, too.

Hello, HelBUG

Tue, 02 Jan 2018 20:41:13 +0000

More user group news: Helsinki, Finland, has a new BSD User Group: HelBUG.  First meeting is February 7th.  There’s no mailing list/site that I know of, yet.

NYCBUG meeting tomorrow

Tue, 02 Jan 2018 17:13:29 +0000

I’m posting this waaaay ahead of time: next NYCBUG meeting is tomorrow.  It’s a porting session, and here’s some of what to expect.

DragonFly donations

Mon, 01 Jan 2018 18:05:28 +0000

DragonFly has a donation page and a Paypal account.  There’s no 501c3 benefit for U.S. residents to donate; DragonFly doesn’t exist as a non-profit.  People have still been donating in smaller sums over time.  It’s not enough to offset the colocation fees ($4k/year) plus the hardware there, but the money does get used for specific …

Lazy Reading for 2017/12/31

Sun, 31 Dec 2017 13:48:21 +0000

Last anything for the year!  I packed in as much reading material as I could. “Bits, in this case, are actual physical objects.”  About the newest MAME. piu-piu-SH, a horizontally-scrolling shooter for the console.  (via) Reviving the Apple 410 Color Plotter.  (via) Print Color PDF Apple II Print Shop Christmas Cards.  (via)  The microm8 idea …