Add network interface alias
sudo ifconfig en0 alias 192.168.0.101 255.255.255.0 |
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Docker clean up based on ancestor tag
docker ps -a -q --filter ancestor=azurebot/qna |
then docker rm the containers
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When put at the root of my Windows user folder C:\Users\[my username]\Dockerfile
it will fail to find context of related files required in the build
COPY failed: stat /mnt/sda1/var/lib/docker/tmp/docker-builder746762051/nodejs/package.json: no such file or directory |
Hence, in separate sub-directory:
<docker Windows User root> | nodejs (dir) |___ Dockerfile .dockerignore resources (dir) |____packages.json serverhello.js |
COPY success during build:
cd nodejs docker build -t bandono/simplenodeweb . |
Instead of -d that exited with code 126 the whole time, run the serverhello.js using:
$ docker run -p 8286:8080 bandono/simplenodeweb node serverhello.js Running on http://0.0.0.0:8080 |
References (which not working at first running with -d):
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FROM python:2.7 RUN pip install --no-cache-dir pytest |
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Change internet default route in Mac OS X to USB HSDPA modem stick with LAN’ certain subnet routed via a gateway in WiFi (en1).
In my case DNS will go with the modem interface setting remain routed via USB modem stick
before routing:
$ netstat -nr Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 10.64.64.64 UGSc 72 137 ppp0 default link#4 UCSI 0 0 en0 default 10.1.1.1 UGScI 0 0 en1 |
Delete and add routes (desired LAN subnet 192.168.1.0/24:
sudo route -n delete default 10.1.1.1 sudo route -n add default 10.64.64.64 sudo route -n add 192.168.1.0/24 10.1.1.1 |
after routing:
$ netstat -nr Routing tables Internet: Destination Gateway Flags Refs Use Netif Expire default 10.64.64.64 UGSc 21 0 ppp0 default link#4 UCSI 0 0 en0 default 10.1.1.1 UGScI 0 0 en1 10.1.1/24 link#5 UCS 6 0 en1 ... 192.168.1 10.1.1.1 UGSc 0 0 en1 ... |
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Check apache2 enabled modules:
$ sudo apache2ctl -M Loaded Modules: core_module (static) log_config_module (static) logio_module (static) mpm_prefork_module (static) ... |
mod_rewrite (rewrite_module usually manipulated in .htaccess) and ssl (for HTTPS) for examples aren’t enabled by default in Ubuntu’ installation of apache2.
Enable one or more of them via:
$ sudo a2enmod |
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Restoring a production database into VM and change date to make it looks like some point of time inside the production server i.e. in this case May 4, 2010
$ /etc/init.d/mysqld stop $ /etc/init.d/httpd stop $ date +%D -s 2010-05-04 $ date +%T -s 23:00:00 -u |
Check date
$ date Tue May 4 19:00:01 EDT 2010 |
Import database
/etc/init.d/mysqld start /etc/init.d/httpd start mysql -u some-username -p < some-db.sql |
Note: Hardware clock option in the VirtualBox VM setting is disabled
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Check ssh key RSA fingerprint:
$ ssh-keygen -l -f /home/myusername/.ssh/id_rsa.pub 7b:e5:6f:a7:xx:xx:xx:xx:xx:xx:xx:xx:8b:57:xx:xx /home/myusername/.ssh/id_rsa.pub (RSA) |
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Running separate version of wine in separate config directory (to isolate errors of running or installation failure)
env WINEPREFIX="/home/arif/.wine-newapps" /usr/local/bin/wine-1.1.31/usr/bin/wine /home/arif/.wine-newapps/drive_c/Program\ Files/newapps/newapps.exe |
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grep omit empty lines:
cat <something> | grep -v "^$" |
I keep forgetting this regexp of “match expression at the star of the line”: the “^”