Robertof

Do you have an automount configured using systemd (or another autofs-based daemon) with an expiry/timeout and it's not automatically unmounting? i.e., is x-systemd.idle-timeout or TimeoutIdleSec not working?

Do you use Prometheus' node_exporter?

The problem

If you answered yes to both questions, you're in luck. After being confused for a while with this problem and furiously Googling about it, I found this issue reported by @huww98 on the systemd repo: systemd/systemd#18445 "Support for autofs "strictexpire" option".

Thanks to their amazing debugging skills, they were able to trace the root cause of the issue to a statfs() syscall made by node_exporter on all mountpoints. If the scrape interval of your Prometheus instance is lower than the timeout, your mountpoint will never be unmounted. In their own words:

Robertof

This happens because /opt/var/run is not a tmpfs, and the data is never removed on reboot.

As a workaround, the fs can be mounted as tmpfs on boot before the new Samba is loaded and replaced. Place the S00runtmpfs file attached to this gist in /opt/etc/init.d, run:

chmod a+x /opt/etc/init.d/S00runtmpfs

Reboot your NAS. Profit!

Robertof

This was compiled using the following guide: https://github.com/Entware/Entware-ng/wiki/Compile-packages-from-sources on Ubuntu 12.04 LTS.

Binary pre-compiled package is available here: https://robertof.ovh/mirror/add-vfs-full-audit-to-entware-ng-samba/samba36-server_3.6.25-9_armv5soft.ipk

Install by downloading it on your device, then `opkg install --force-checksum samba36-server_3.6.25-9_armv5soft.ipk`. Restart Samba or device afterwards, `admin` share should work.

For posterity, rough list of commands:
- sudo sed -i 's/us-east-1.ec2.archive.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
- sudo sed -i 's/security.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
- sudo apt-get update

Robertof

# busybox
BusyBox v1.22.1 (2014-11-27 12:30:44 CST) multi-call binary.
BusyBox is copyrighted by many authors between 1998-2012.
Licensed under GPLv2. See source distribution for detailed
copyright notices.

Usage: busybox [function [arguments]...]
   or: busybox --list
   or: function [arguments]...

Robertof

#!/usr/bin/env bash
# Technicolor AG plus VDNT-S Router VDSL2 - (ba)sh IP renewer
# This script logs into the router and refreshes the IP address by toggling on
# and off the "automatic connection" parameter.
# It *NEEDS* to be configured. Please keep reading.

# Disable globbing, die on undefined variables and errors
set -efu

# Configuration

Robertof

--- relay.orig  2016-01-04 17:02:33.538674500 +0100
+++ relay.c     2016-01-04 03:18:44.972518900 +0100
@@ -83,6 +83,31 @@
 /* Hack for daemonizing */
 #define CLOSEFD 64

+/* Debug flag */
+//#define ROB_DEBUG
+
+/* No syslog when debugging! */

Robertof

#!/usr/bin/env perl
# Basic Telegram Bot implementation using WWW::Telegram::BotAPI
use strict;
use warnings;
use WWW::Telegram::BotAPI;
use utf8;

my $api = WWW::Telegram::BotAPI->new (
    token => (shift or die "ERROR: a token is required!\n")
);

Robertof

#!/usr/bin/env perl
use autodie;
use strict;
use warnings;
use Digest::MD5 "md5_hex";
use File::Path ();
use File::Spec;
use Fcntl qw(:DEFAULT :flock);
use HTTP::Cookies;
use JSON::MaybeXS;

Robertof

Keybase proof

I hereby claim:

• I am Robertof on github.
• I am robertof (https://keybase.io/robertof) on keybase.
• I have a public key whose fingerprint is 9786 7646 60D9 AA54 3072 306D B7F6 7885 CA4B D3E8

To claim this, I am signing this object:

Robertof

#!/usr/bin/env bash
PL_VERSION="1.1.1"
PL_KEY=""
PL_LANG=""
PL_FULLPAGE=""
PL_URL="http://pasteling.giovannicapuano.net/api"

command -v curl >/dev/null 2>&1 || \
  { echo >&2 "This script requires 'curl'. Aborting."; exit 2; }
command -v rev >/dev/null 2>&1 || \