let’s encrypt: https_proxy systemd

On a Debian Stretch system at work, certbot was working but automatic renewals were not. The system is behind a proxy server and the https_proxy environment variable was not being set when certbot ran unattended.

I wasted several hours tinkering with /etc/cron.d/certbot before I realized that

0 */12 * * * root test -x /usr/bin/certbot -a \! -d /run/systemd/system && perl -e 'sleep int(rand(3600))' && certbot -q renew

was preventing certbot from running if systemd was running.

Edit /lib/systemd/system/certbot.service Add:


Nexus 5X SAR

The SAR for Nexus 5X is very hard to find on the web.

Go to http://www.lg.com/global/support/sar/sar. In the boxes at the bottom of the page, — Select Category — Mobile Phone, then search on LG-H790.

Results I get are:

-Europe & Middle East & Africa & Asia & Oceania

The highest SAR value for use at the ear is 0.607 W/kg (10 g) and when worn on the body is 0.397 W/kg (10 g) at 15mm

-USA & Canada

The highest SAR value for use at the ear is 1.25 W/kg (1 g) and when worn on the body is 1.28 W/kg (1 g) at 10mm

The FCC Grantee Code is ZNF, Product Code H790. Search here for much too much to sift through: https://www.fcc.gov/general/fcc-id-search-page

Debian 7: unknown filesystem type ‘iso9660′

(Tax time issue.) I burned a data CD on Debian 7 using Brasero. When I attempted to mount the data CD to verify that it was readable, I got an error: unknown filesystem type 'iso9660'. This was because iso9660 support was missing from my install. To solve this,

apt-get install fuseiso9660