Some quick note.
sudo apt-get install lxc debootstrap
create from mirror with debootstrap
sudo MIRROR=http://httpredir.debian.org/debian lxc-create -n sid64 -t debian -- -r sid -a amd64
create a container from lxc template (default jessie, the host is 64)
sudo lxc-create -t /usr/share/lxc/templates/lxc-debian -n debian
create a container from lxc debian template, pass lxc-debian argument after --
sudo lxc-create -t /usr/share/lxc/templates/lxc-debian -n debian2 -- -r stretch
-d daemon (background)
sudo lxc-start -n sid64 -d
sudo lxc-stop -n sid64
-F foreground
sudo lxc-start -n sid64 -F
change root password
sudo lxc-attach -n sid64 passwd
list container->dhcp ip
sudo lxc-ls --fancy
mount host directory inside the container
lxc.mount.entry=/host/dir /var/lib/lxc/{container-name}/rootfs/dir none bind 0 0
create a copy of the container using overlayfs
sudo lxc-copy -s -B overlayfs -n {base-container} -N {new-container-name}
sudo apt-get install libvirt-clients libvirt-daemon-system ebtables dnsmasq
sudo virsh net-info default
# /var/lib/libvirt/network/default.xml
sudo less /etc/libvirt/qemu/networks/default.xml
always same ip by mac addr
<dhcp>
<range start="192.168.122.100" end="192.168.122.254" />
<host mac="00:FF:AA:00:00:01" name="foo.example.com" ip="192.168.122.101" />
<host mac="00:FF:AA:00:00:02" name="bar.example.com" ip="192.168.122.102" />
</dhcp>
sudo virsh net-start default
/sbin/ifconfig -a
sudo vi /var/lib/lxc/{container-name}/config
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = virbr0
lxc.network.hwaddr = 00:FF:AA:00:00:01
lxc.network.ipv4 = 0.0.0.0/24
bridge autostart (optional)
sudo virsh net-autostart default
sudo virsh net-info default
configure host br0 and add eth0 to it, /etc/network/interfaces:
auto br0
iface br0 inet static
address 192.168.2.210
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255
gateway 192.168.2.1
bridge-ifaces eth0
bridge-ports eth0
up ifconfig eth0 up
iface eth0 inet manual
edit /var/lib/lxc/{container}/config:
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br0
lxc.network.hwaddr = 00:FF:AA:00:00:10
lxc.network.ipv4 = 192.168.2.20/24
lxc.network.ipv4.gateway = 192.168.2.1
Create a new vmoptions file with the tmpdir value only in a place where won’t be replaced by android-studio installation
echo "-Djava.io.tmpdir=$HOME/install/android-studio/tmp" >$HOME/install/android-studio-tmpdir.vmoptions
Create a wrapper
#!/bin/sh
export STUDIO_VM_OPTIONS=$HOME/install/android-studio-tmpdir.vmoptions
exec $HOME/install/android-studio/bin/studio.sh
vi /etc/apt/sources.list
## add the deb-src repository
apt-get update
apt-get build-dep xtables-addons-source
apt-get install module-assistant xtables-addons-source
m-a unpack xtables-addons
cd /usr/src/modules/xtables-addons/
autoreconf -i -v -f
./configure --with-kbuild=/lib/modules/3.16.0-4-amd64/build
sed 's/(uname -r)/{KVERS}/' -i configure.ac
ls /usr/src/*.deb
/usr/src/xtables-addons-modules-3.16.0-4-amd64_2.6-1_amd64.deb
git clone https://github.com/crosstool-ng/crosstool-ng.git
cd crosstool-ng
./bootstrap
./configure --prefix=$HOME/install/crosstool-ng
make install
echo 'export PATH="${PATH}:$HOME/install/crosstool-ng/bin"' >>~/install/crosstool-ng/crosstool-ng.env
. ./install/crosstool-ng/crosstool-ng.env
mkdir -p ~/workdir
cd ~/workdir
ct-ng list-samples
ct-ng i686-ubuntu16.04-linux-gnu
ct-ng menuconfig
nice -19 ct-ng build.4
ls ~/x-tools/i686-xg-linux-gnu/
cd ~/src/repo
git init --bare package.git
cd /tmp
git clone /path/package.git
cd package
mkdir -p src
touch src/file_with_classes.php
touch composer.json
composer.json {
"name": "vendor/package",
"autoload": {
"classmap": ["src/"]
}
}
I’m using classmap because I want more classes in the same php file, but there are more options, if using classmap remember to refresh the autoloader when classes are added/removed (composer -o dumpautoload)
and commit-push
git commit src/file_with_classes.php composer.json
git push
cd project/backend
composer init
composer.json "repositories": [
{
"type": "vcs",
"url": "/home/user/src/repo/package.git"
}
],
or, if using lan repositories shared with something like
git daemon --base-path=. --export-all --verbose --enable=receive-pack
edit composer.json
"repositories": [
{
"type": "vcs",
"url": "git://192.168.1.1/package.git"
}
],
"config": {
"secure-http": false
},
composer require "vendor/package" "dev-master"
~/ttyACM0:
#!/bin/sh
exec /usr/bin/picocom -b 115200 /dev/ttyACM0
initialization:
ATZ
AT+VCID=1
ATS0=0
attach tmux:
tmux attach
detach from tmux:
Ctrl+b d
PhpStorm versions older than 9.5 may have some trouble running phpunit tests:
PHP Fatal error: Call to undefined method PHP_CodeCoverage_Filter::addFileToBlacklist()
so:
composer require --dev "phpunit/phpunit=4.*" # to install phpunit as dev dependency then...
# not working with phpunit 5
composer require --dev phpunit/php-code-coverage dev-master#b8436b000263f6d72fbad1d36890e247ce84857e
A friend with a WordPress website asked for help cleaning up from spam about ~400 thousands comments (about ~200M), he had guests enabled to comment.
I chosen to use python with curses (ncurses) and this pybayesantispam python module.
The curses GUI is a list with an abstract from the comment content and a column with the current spam rating, a cursor to select a comment and some key to tag it as (s)pam or (h)am, the bayesian module require some manual training, (n)ext (p)revious to browse the comments table.
The code is ugly, had a very limited time, but I been impressed how fast got a good result.
The current code include GeoIP and show the country code but isn’t used to filter the spam, in this case was an overhead, but would have been easy to add more weight factors: create a whitelist of emails from manually tagged ham, blacklist from manually tagged spam, guests users have id 0, blacklist/whitelist of ip from manually tagged comments.
1) import the whole CSV as a table, look for load data infile (or just use some tool like phpMyAdmin), here will be vit_orig.
2) create a table for each column to normalize, I usually use something like an id uint(11) auto-increment primary-key, descr varchar(255)
3) populate the created tables using the import, for each table, vit_tipo in the example, use something like:
INSERT INTO vit_tipo( descr )
SELECT tipo
FROM vit_orig
GROUP BY tipo
4), create the new table (vit_rel_mmmist in the example) with the needed <table>_id relations, then populate it with ids regenerated finding text from the original vit_orig and the normalized created at point 2:
INSERT INTO vit_rel_mmmist (marca_id, modello_id, misura_id, indice_id, stagione_id, tipo_id)
SELECT ma.id , mo.id , mi.id , ind.id, st.id, ti.id
FROM vit_orig2
LEFT JOIN vit_marca ma ON marca=ma.descr
LEFT JOIN vit_modello mo ON modello=mo.descr
LEFT JOIN vit_misura mi ON misura=mi.descr
LEFT JOIN vit_indice ind ON indice=ind.descr
LEFT JOIN vit_stagione st ON stagione=st.descr
LEFT JOIN vit_tipo ti ON tipo=ti.descr
In the example marca, modello, misura, indice, stagione, tipo are the column names of vit_orig.