15,349 reputation
11846
bio website stratigery.com
location Denver, CO
age 53
visits member for 3 years, 8 months
seen 4 hours ago

My first computer was a Radio Shack Color Computer 3 - 6809-based, running OS-9 Level II. It could run 32 processes at once, due to bank-switching a whole 1 Meg of memory.

After that, I got an AT&T 3b2, also known as a Convergent Safari. This was a Motorola 68010-based desktop.

Then, I graduated to a NeXT black&white "slab". I bought a used SPARCStation IPC in 1995, and put NetBSD 0.9 on it. I ran NetBSD on the IPC and a SPARCStation 10 until 2002.

I've been using Linux since 1997, starting with a DEC Alpha-based UDB, and downgrading to a x86 PC in 2002.

I run Arch linux, on my server and my laptop.


Apr
15
comment Are system calls the only way to interact with the Linux kernel from user land?
That seems almost vacuous. If we count hardware traps into the kernel, then a busy loop which just eats an entire time-slice counts as "interacting" with the kernel, doesn't it?
Apr
12
comment Change Apache httpd “Server:” HTTP header
This does work, thank you very much. I have to note that mod_security is not one of Arch Linux's ordinary packages. There's a PKGBUILD in the AUR, but it hasn't been updated since 2011 (as of April 12, 2014) and it references a really old version of mod_security. As always, your distro may vary.
Apr
10
comment Change Apache httpd “Server:” HTTP header
@MichaelOzeryansky - thanks for catching the misspelling. It is "httpd.conf" I do stop and start httpd after changing httpd.conf.
Apr
5
comment Are there any alternatives to mutt?
I'd like to echo Faheem Mitha's personal Pine story. Oddly, I switched from BSD mail to Pine around 1994. I've tried Mutt, too, but never made the switch.
Mar
29
comment Why bash encapsulates syntax error both with grave accent and with an apostrophe?
+1 for using "passe'" in a technical answer. Bravo, sir!
Mar
25
comment How to add bootloader to ISO? Or, make ISO bootable?
Where do I get isolinux.bin and boot.cat?
Mar
13
comment Unable to find root device / sda partitions missing
@JeroenBollen - I doubt that a device driver is missing: the Arch kernel is compiled with just about every drive as a module. I still think you have an issue with /boot/grub/grub.cfg - running grub-mkconfig and getting an error is very suspicious.
Mar
12
comment Unable to find root device / sda partitions missing
@JeroenBollen - something's really wrong with your Arch installation. Does it have files like "/boot/vmlinuz-linux"? I'm using the "Long Term Support" kernel on my server, so the file is /boot/vmlinuz-linux-lts.
Mar
12
comment Unable to find root device / sda partitions missing
@JeroenBollen - see edits.
Mar
12
comment What are the pros and cons of Vim and Emacs?
@moon.musick - certainly not, I do it all the time. It's just that gnuplot, Postgresql's psql, MySQL's mysql and a ton of other interfaces all do Emacs mode more or less by default. If only Oracle could get sqlplus to do command line editing... no, no. That would be too much to ask of a Major Corporation. They have Trends To Follow!
Mar
8
comment DHCP lease acquired , yet no ping, not even to default gateway
I've switched off router's security - it sounds like maybe the router has more switched off than that, like maybe it's not doing any routing, or it has no route to 192.168.2.101 . Can you use another computer to check this - try one that was previously working with your router.
Feb
28
comment Replace instance of process in place?
@SonofLysander - see changed program fragment above.
Feb
27
comment Why does SLES 11 corrupts given characters?
@evachristine - that's my guess, due to the way that UTF-8 works, and the situation you describe as troublesome.
Feb
23
comment How to make the login shell xterm use utf-8?
When you type xterm in the shell on the RHEL server, a program (maybe /usr/X11R6/bin/xterm) runs on RHEL server. Via the magic of the DISPLAY environment variable, all X11 messages go back to the X11 server on your PC. I'm not sure how fonts play into this, whether the X11 server on your PC uses/needs them, or the xterm client on RHEL uses or needs them.
Feb
22
comment Regex for all 10 letter words, with unique letters
I don't believe you can do this with a computer-science style regular expression: what you want requires "memory" of what the preceding matched characters are, and regular expressions just don't have that. That said, you might be able to do it with back references and the non-regular-expression things that PCRE-style matching can do.
Feb
22
comment How to make the login shell xterm use utf-8?
If you can run xterm from the shell that runs inside the X-Win32 xterm, aren't you actually runnning an xterm process on the RHEL server, and displaying it on your laptop or desktop? That would be a totally different xterm executable, running on a different machine.
Feb
13
comment Postfix, SMTP Server, PHPMailer
I have to strongly disagree. If the people in unix.stackexchange.com shouldn't configure an SMTP server on their own, who should? Licensed and Accredited SMTP Engineers? I say go for it: there's ample docs floating around, configure it yourself and apologize to anyone who complains.
Feb
11
comment /proc/self/maps - 3rd mapped piece of file?
@Gilles - if you do readelf -h /usr/bin/cat, you can see that the .text and .rodata sections end up in the first LOAD segment. .data and .bss sections end up in the second LOAD segment. This 3rd mapped segment is something else.
Feb
6
comment How do I avoid echoing password (two simultaneous prompts)?
@x-yuri - how about now?
Feb
6
comment Arch ntpd/ntpdate not synchronizng clock
This looks a little bit like a DNS problem, perhaps slow response, specifically the "Host name not found" lines. I just stopped and restarted ntpd on my arch linux server, and I didn't see those lines. What's available on raspi to debug DNS problems? Also, it probably doesn't matter, but why the "iburst" option? Seems a little weird to do that without a specific reason.