Few nice command lines
How to check processor you have on your Linux box
There is lscpu command, but in case it is not availabe, the following will do the trick:
cat /proc/cpuinfo | grep 'model name' | head -n 1
model name : Intel(R) Atom(TM) CPU E3827 @ 1.74GHz
Changes in last git commit
This is mega usefull to show last commit changes:
git diff HEAD^ HEAD
Fixing this blog on CloudFlare pages
I updated the PaperMod theme and got CloudFlare build failing with:
13:13:34.465 WARN 2024/10/13 12:13:34 The "twitter_simple" shortcode will soon require two named parameters: user and id. See "/opt/buildhome/repo/content/demo/rich-content.md:24:1"
13:13:34.817 ERROR 2024/10/13 12:13:34 render of "home" failed: "/opt/buildhome/repo/themes/PaperMod/layouts/_default/rss.xml:59:17": execute of template failed: template: _default/rss.xml:59:17: executing "_default/rss.xml" at <site>: can't evaluate field LanguageCode in type *langs.Language
13:13:34.817 ERROR 2024/10/13 12:13:34 render of "section" failed: "/opt/buildhome/repo/themes/PaperMod/layouts/_default/rss.xml:59:17": execute of template failed: template: _default/rss.xml:59:17: executing "_default/rss.xml" at <site>: can't evaluate field LanguageCode in type *langs.Language
13:13:34.817 ERROR 2024/10/13 12:13:34 render of "section" failed: "/opt/buildhome/repo/themes/PaperMod/layouts/_default/rss.xml:59:17": execute of template failed: template: _default/rss.xml:59:17: executing "_default/rss.xml" at <site>: can't evaluate field LanguageCode in type *langs.Language
13:13:34.818 ERROR 2024/10/13 12:13:34 render of "section" failed: "/opt/buildhome/repo/themes/PaperMod/layouts/_default/rss.xml:59:17": execute of template failed: template: _default/rss.xml:59:17: executing "_default/rss.xml" at <site>: can't evaluate field LanguageCode in type *langs.Language
13:13:34.818 Error: Error building site: failed to render pages: render of "section" failed: "/opt/buildhome/repo/themes/PaperMod/layouts/_default/rss.xml:59:17": execute of template failed: template: _default/rss.xml:59:17: executing "_default/rss.xml" at <site>: can't evaluate field LanguageCode in type *langs.Language
13:13:34.818 Total in 439 ms
13:13:34.827 Failed: build command exited with code: 255
13:13:49.008 Failed: error occurred while running build command
The fix was simple, update to HUGO_VERSION veriable from 0.96.0 to 0.123.4.
Committing now, validate this… Failed, now with:
ERROR The "twitter_simple" shortcode requires two named parameters: user and id. See "/opt/buildhome/repo/content/demo/rich-content.md:24:1"
Interestingly, I should have pay more attention to previous failure logs… It seems, I have some old “PaperMod demo” page using old “twitter_simple” shortcode. Just updated it to show one of my (dormant) Twitter account post.
The fix:
## Twitter Simple Shortcode
-twitter_simple 1085870671291310081
+twitter user="bartprokop" id="1445337420967391235"
It works now!
OpenWrt hostname
I’m in the process of aligning names of all my devices with my naming scheme.
It is unlikely that I will have more than one router per location, so routers are simply named rt-<LOC>.
That corresponds with following entry in /etc/config/system:
config system
option hostname 'rt-LOC'
option description 'Aguas Verdes Router'
After restart, the prompt is much more friendlier:
$ ssh [email protected]
BusyBox v1.36.1 (2024-03-22 22:09:42 UTC) built-in shell (ash)
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
OpenWrt 23.05.3, r23809-234f1a2efa
-----------------------------------------------------
root@rt-LOC:~#
Grafana for home needs
Grafana Cloud might be really useful for monitoring smart home and home lab. Register here: Grafana Cloud.
Getting MTA on OpenWRT
Install msmtp package with sendmail symlink:
# opkg update
# opkg install msmtp-mta
Installing msmtp-mta (1.8.25-1) to root...
Downloading https://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/packages/msmtp-mta_1.8.25-1_mipsel_24kc.ipk
Installing libgmp10 (6.2.1-1) to root...
Downloading https://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/libgmp10_6.2.1-1_mipsel_24kc.ipk
Installing libnettle8 (3.9.1-1) to root...
Downloading https://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/libnettle8_3.9.1-1_mipsel_24kc.ipk
Installing libgnutls (3.8.3-1) to root...
Downloading https://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/packages/libgnutls_3.8.3-1_mipsel_24kc.ipk
Installing msmtp (1.8.25-1) to root...
Downloading https://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/packages/msmtp_1.8.25-1_mipsel_24kc.ipk
Configuring libgmp10.
Configuring libnettle8.
Configuring libgnutls.
Configuring msmtp.
Configuring msmtp-mta.
I have created new user Hermes Mercury [email protected] on my Google Workspace account. Then I logged in and enabled 2FA. If you want to skip phone/secondary email verfication, add Google Authenticator prior to enabling 2FA.
Now it is time to update /etc/msmtprc.
account default
host smtp.gmail.com
# Use TLS on port 465. On this port, TLS starts without STARTTLS.
port 465
auth on
tls on
tls_starttls off
from [email protected]
user [email protected]
password <APP password>
syslog LOG_MAIL
Then test it:
echo -e "Subject: Test mail\n\nThis is a test \"message\"." | sendmail "<[email protected]>"
Got it working (above basically was following receipe from OpenWrt.org) and then realised it should be tuned a bit.
Tuning msmtp on OpenWRT
First I created file to alias every local account to my real email. vi /etc/aliases.msmtp:
default: [email protected]
Then made the following updates to /etc/msmtprc:
# A system wide configuration file.
# It defines a default account.
# This allows msmtp to be used like /usr/sbin/sendmail.
# Set default values.
defaults
aliases /etc/aliases.msmtp
syslog LOG_MAIL
# Gmail configuration that works with 2FA and an app password.
# Use TLS on port 465. On this port, TLS starts without STARTTLS.
account gmail
host smtp.gmail.com
port 465
auth on
tls on
tls_starttls off
from_full_name Apartment Router
from [email protected]
user [email protected]
password abcd efgh ijkl mnop
# Select the default account
account default : gmail
Last part was deploing the above setup across all three fixed and two mobile routers. Also, I’ve updated article on OpenWrt Wiki.