Yet another open source journal
I saw a configuration for bash tab completion a few years ago and I’ve always wanted it for the korn shell. I use either the “true” ksh from AT&T via David Korn or one of the variants that has sprung out of the pdksh project. OpenBSD’s ksh is a descendant of pdksh. In a recent release of OpenBSD someone patched it to kludge configurable tab completion via environmental arrays. The article is here: https://www.vincentdelft.be/post/post_20210102
This ksh is shells/oksh in FreeBSD.
I haven’t played with Raspberry Pi quite enough. I’ll do a write up on my garage door opener project at another time. But a really promising place for the Pi in my opinion is the role of a traveling router/access point. I don’t find the process of connecting to the WiFi in a hotel room particularly hard. It’s connecting back into my own network to access my my services that is difficult. The methods that I have at my disposal are:
Running OpenBSD on a Raspberry Pi gives me a solid place to put an IPSec connection for the whole hotel room network. Getting there involves installing OpenBSD on the Pi in the first place
First, to give credit where it’s due, I started here. That said, here’s how I store and access account passwords in mutt on Linux.
## -- Passwords: encrypted by gpg --------------------------------------------------------------
source “/bin/gpg -d ~/.keychain/mutt.password.neopost.gpg 2>/dev/null |”
The source line in gpg tells mutt to decrypt a file at startup. The file .keychain/mutt… contains two mutt configuration lines:
set imap_pass = "<my_email_password>" set smtp_pass = "<my_email_password>"
I created it as follows:
$ cat <<EOF | gpg -r <my_gpg_id> ~/.keychain/mutt.password.neopost.gpg set imap_pass = "<my_email_password>" set smtp_pass = "<my_email_password>" EOF $
Gpg knows how to decrypt this file and retrieve the plain text configuration. Note well that I used a “Here” document to create the file. This keeps mail password out of the filesystem. Simple stuff, at mutt startup the first time I use it, gpg-agent asks for my gpg key and unlocks the configuration snippet.
Brush aside vandals attacking my submission daemon with a little sed:
submission_brutes=$(bzcat /var/log/maillog.0.bz2 | \
cat - /var/log/maillog | \
sed -Ene '/postfix\/submission\/smtpd.*errors after AUTH/s/^.*[^0-9]+(([0-9]+\.){3}[0-9]*).*$/\1/p' | sort -u)
[[ ! -z "${submission_brutes}" ]] && pfctl -t blackhole -T add ${submission_brutes}
My Mother of all MiFi wishlist:
To Do:
I have a very old VA Linux 2200 box that I use a firewall. I recently upgraded it a later version of OpenBSD but it appears that I’ve found a regression in the X Server. This machine uses the Intel 440Gx Chipset with an integrated Cirrus Logic CL GD5480 Video adapter. It looks like the support for the video adapter has fallen out of Xorg 7.2 since the old OpenBSD could drive this box at 1280x1024x16bpp even though the box only has 2M of video RAM (If you do the math, don’t ask me I’m trying to found out how myself). The new driver can’t do this. I’ve spent a few hours trying to find Doco for the chipset in Xorg but the man page is another one of those “This section needs to be completed things…”
After far too long I’ve finally setup spamd to greylist inbound mail into vindaloo.com. This is something that I should have done a while ago. Before spamd I used a simple filtering setup for email based on Spam Assassin and using SA’s Bayes filter. It works okay but I was never happy with the performance that it needed from my box. When I first started this I was able to handle all the mail for vindaloo.com on a SparcStation 20 running OpenBSD. That’s not really special since I typically have less than 5 users. Disk space concerns forced me to upgrade to a VA Linux 2200, still running OpenBSD. That’s been very good but I’m now running into the same problems that I’ve had before. If there is any holdup in the mail system then the mail server gets hammered while the MX boxes on the internet offload mail. It’s easy to figure out why this is. I just look at the count of messages in my spam and junkmail folders. Lets see 376 messages in spam and another 246 in junkmail. That’s about 3 days worth of mail. That’s right. Despite Javascript veiling and everything else I do I get over 150 spams per day. Or at least I did until I started running spamd!