When developing on an ESP8266 I came across the issue of the WDT not being triggered by my code and subsequently getting reset by the hardware WDT. Here is one of the few useful resources I found on the topic https://techtutorialsx.com/2017/01/21/esp8266-watchdog-functions/ Essentially it's as simple as adding …

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No questions asked reboot. Danger Will Robinson, will most likely break many things! echo 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-trigger Original article

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1ceph pg dump | awk ' 2BEGIN { IGNORECASE = 1 } 3/^PG_STAT/ { col=1; while($col!="UP") {col++}; col++ } 4/^[0-9a-f]+\\.[0-9a-f]+/ { match($0,/^[0-9a-f]+/); pool=substr($0, RSTART, RLENGTH); poollist[pool]=0; 5up=$col; i=0; RSTART=0; RLENGTH=0; delete osds; while(match(up,/[0-9]+/)>0) { …

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1sudo esptool.py --port /dev/ttyUSB0 read_flash 0x00000 0x100000 image-T1Original.bin 2 3sudo esptool.py --port /dev/ttyUSB0 erase_flash 4 5sudo esptool.py --port /dev/ttyUSB0 write_flash -fs 1MB -fm dout 0x0 sonoff.bin

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Network manager can be a right pain in the ass, my goto has usually been to simply install it, but in some environments(Particularly Laptop\Desktop PC's) it can actually be useful. So here are some useful command that might make NM tolerable 1 - Show status Network Manager has a command line tool that can be used to …

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One of the most difficult things about moving to Ubuntu Gnome so far has been my Bluetooth headset of all things. It paired and worked brilliantly right out of box, but after a reboot the quality was woeful. Turns out the audio profile had changed to HSP\HFP - Headset Head Unit when I wanted it to be A2DP Sink - High …

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Here is a script i've put together from a few different sources that renews specified LE certificates, copies them to the HAProxy SSL directory, copies them to the second HAPpoxy server and reloads haproxy on both nodes Just call like this bash ~/renewLECert.sh domain1.com domain2.com Will create 2 separate …

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I use this to fire off a cryptominer when my screen locks. Works on Fedora 26 I run this command as a batch file in screen. Could be made into a daemon i suppose but screen works good enough for now 1dbus-monitor --session "type=signal,interface=org.gnome.ScreenSaver" | 2 while read MSG; do 3 LOCK_STAT=`echo …

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1curl ifconfig.me wget http://ipecho.net/plain -qO-

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This command will tar an entire folder, pass it to gzip then pass it to SSH which then in turn writes the resultant output to a file on a remote server Useful for backing up small folders to remote servers Don't forget to ssh-copy-id on the source server so password-less authentications works 1tar -cvf - …

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