Hello

[LINUX] burn a DVD ISO

amiz — Tue, 5 Aug 2014 16:26:44 +0900

# wodim --devices

# wodim -v dev=/dev/sg1 speed=4 -eject /path/to/file.iso

SSH login without password

amiz — Wed, 26 Mar 2014 15:01:43 +0900

원문 : http://www.linuxproblem.org/art_9.html

a@A 에서 b@B 로 password 없이 로그인

a@A:~> ssh-keygen -t rsa
a@A:~> cat .ssh/id_rsa.pub | ssh b@B 'cat >> .ssh/authorized_keys'

Linux NAT server forwarding [ubuntu]

amiz — Mon, 9 Dec 2013 20:52:29 +0900

원문 :

http://www.linuxrookie.com/?p=160

http://www.howtoforge.com/nat_iptables

private interface : eth1

public interface : eth0

1. Open the forward option

# echo 1 > /proc/sys/net/ipv4/ip_forward

# vim /etc/sysctl.conf change net.ipv4.ip_forward = 0,let 0 to 1

2. Config NAT rules

# iptables –t nat –A POSTROUTING –s 192.168.100.0/24 –o eth0 –j MASQUERADE

# iptables –A FORWARD –i eth1 –j ACCEPT

3. Permanently update iptables

# apt-get install iptables-persistent

# iptables-save > /etc/iptables/rules.v4

[SHELL] 특수 변수

amiz — Tue, 13 Aug 2013 10:27:18 +0900

원문 : http://unixhelp.ed.ac.uk/scrpt/scrpt2.2.2.html

Name	Description
$1 - $9	위치 파라미터의 값
$0	현재 실행되고 있는 command의 이름
$#	위치 파라미터의 개수
$?	가장 마지막에 실행된 command의 exit status
$$	현재 shell의 pid
$!	background 에서 가장 마지막에 실행된 pid
$-	the current options supplied to this invocation of the shell
$*	a string containing all the arguments to theshell, starting at $1
$@	same as above, except when quoted

[Linux] Emacs tomorrow theme

amiz — Mon, 4 Mar 2013 18:03:23 +0900

링크:

https://github.com/chriskempson/tomorrow-theme/tree/master/GNU%20Emacs

https://code.google.com/p/princess-alist/source/browse/trunk/home/xiaogaozi/.emacs.d/site-lisp/color-theme-tomorrow.el?r=123

color-theme-tomorrow.el

(setq load-path (cons (expand-file-name "~/.emacs.d") load-path))

(load-library "color-theme-tomorrow")

(color-theme-tomorrow-night)

현재 터미널이 256 칼라가 아니라면

$ tput colors

256 color 설정

export TERM="xterm-256color"

[Linux] gnome-terminal 256 color 사용

amiz — Mon, 4 Mar 2013 17:46:58 +0900

export TERM="xterm-256color"

Linux IO Stack Diagram

amiz — Thu, 1 Nov 2012 22:33:49 +0900

원문 : http://www.thomas-krenn.com/en/oss/linux-io-stack-diagram/linux-io-stack-diagram_v0.1.pdf

이미지 파일 생성 / 마운트

amiz — Thu, 1 Nov 2012 22:06:03 +0900

# dd if=/dev/zero of=disk.img bs=4k count=1024

# mkfs.ext3 -F disk.img

# mount -o loop disk.img mount_point

# losetup /dev/loop0 disk.img

# mount /dev/loop mount_point

Apache + mod_wsgi + Django install from source

amiz — Fri, 10 Feb 2012 20:43:50 +0900

OpenSSL (필요한 경우만)

http://www.openssl.org/
http://httpd.apache.org/docs/2.0/mod/mod_ssl.html

# ./config --prefix=/path/to/openssl
# make; make install

# openssl genrsa -des3 -out server.key 1024
# openssl req -new -key server.key -out server.csr
# openssl x509 -req -days 90 -in server.csr -signkey server.key -out server.crt

Apache

http://httpd.apache.org/

[mpm-worker]
# ./configure --prefix=/path/to/apache --enable-so --with-mpm=worker

[mpm-worker, ssl]
# ./configure --prefix=/path/to/apache --enable-so --with-mpm=worker \
> --enable-ssl --with-ssl=/path/to/openssl

(debug mode)
--enable-maintainer-mode

# make; make install

extra/httpd-wcgi.conf 생성
http://blog.stannard.net.au/2010/12/11/installing-django-with-apache-and-mod_wsgi-on-ubuntu-10-04/
http://gauryan.blogspot.com/2010/10/apache-django-modwsgi.html
http://bryanhelmig.com/setting-up-ubuntu-10-04-with-apache-memcached-ufw-mysql-and-django-1-2-on-linode/
https://code.djangoproject.com/wiki/django_apache_and_mod_wsgi
http://code.google.com/p/modwsgi/wiki/IntegrationWithDjango

LoadModule wsgi_module modules/mod_wsgi.so

NameVirtualHost *:80

ServerName localhost

DocumentRoot /app/foo

<Location />
Order allow,deny

Allow from all

</Directory>

# setting 에서 static file을 /app/foo/static 으로 한 경우
Alias /static /app/foo/static
<Location /static>
Order allow,deny
Allow from all
</Location>

WSGIScriptAlias / /app/foo/django.wsgi

</VirtualHost>

httpd.conf 파일 수정

DocumentRoot /path/to/document/root
ServerName MyServerName:80
<Directory "/path/to/document/root">
...
</Directory>

Include conf/extra/httpd-mpm.conf
Include conf/extra/httpd-default.conf
Include conf/extra/httpd-wcgi.conf

포트 막혀있는 경우 80번 열어주기

/etc/sysconfig/iptables 에 다음 추가

-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT

# /etc/init.d/iptables restart
혹은
# service iptables restart

Python

http://python.org/getit/

# ./configure --prefix=/path/to/python \
> --enable-shared

# make; make install

mod_wsgi

http://code.google.com/p/modwsgi/wiki/QuickInstallationGuide
http://code.google.com/p/modwsgi/wiki/PerformanceEstimates

# ./configure --with-apxs=/path/to/httpd/bin/apxs \
> --with-python=/path/to/pythton/bin/python

# make; make install

Django

https://www.djangoproject.com/download/

# python setup.py install

Sample Project

# cd /app/
# django-admin.py startproject foo
# cd /app/foo
# ls
__init__.py __init__.pyc manage.py settings.py urls.py urls.pyc

# cat > django.wsgi
import os

import sys

sys.path.append('/app/')

os.environ['DJANGO_SETTINGS_MODULE'] = 'foo.settings'

import django.core.handlers.wsgi

application = django.core.handlers.wsgi.WSGIHandler()

[IPHONE] UUID 생성

amiz — Tue, 24 Jan 2012 17:52:07 +0900

원문 : http://stackoverflow.com/questions/7016311/how-to-generate-unique-identifier

+ (NSString *)uuid

{

CFUUIDRef uuidRef = CFUUIDCreate(NULL);

CFStringRef uuidStringRef = CFUUIDCreateString(NULL, uuidRef);

CFRelease(uuidRef);

return [(NSString *)uuidStringRef autorelease];

}