Tuesday, April 21, 2015
Friday, December 12, 2014
Using Git With Multiple SSH Keys and Accounts
Generating SSH keys for GitHub
Here are github account and work account.
GitHub:
SSH Key: github_id_rsa
Account: oopsmonkWork:
SSH Key: work_id_rsa
Account: SamChen
Add SSH config File
Modify ~/.ssh/config
# Default github
Host github.com
HostName github.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/github_id_rsa
# Work git server
Host work.gitserver.com
HostName work.gitserver.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/work_id_rsaGit Repository Configuation
GitHub Project:
$ git clone https://github.com/abc/projectA.git $ cd projectA #github account $ git config user.name "oopsmonk" $ git config user.email "oopsmonk@example.com.tw"Working Project:
$ git clone https://work.com.tw/repo/projectW.git $ cd projectW #working account $ git config user.name "SamChen" $ git config user.email "SamChen@example.com.tw"
Now you can deal with git repositories using different accounts.
(Additional) Using ssh-agent to access GitHub without password
Check key list
# No ssh-agent running
$ ssh-add -l
Could not open a connection to your authentication agent.
$ Enable ssh-agent (Ubuntu12.04):
#enable ssh-agent
$ eval `ssh-agent -s`
#add keys to agent
$ cd ~/.ssh
$ ssh-add work_id_rsa github_id_rsa
Identity added: work_id_rsa (work_id_rsa)
Identity added: github_id_rsa (github_id_rsa)
#list added keys
$ ssh-add -L
#delete keys in agent
$ ssh-add -DNow you can commit modifications to git repository without password.
Reference:
Understanding ssh-agent and ssh-add
How can I run ssh-add automatically, without password prompt?
Wednesday, December 10, 2014
pyenv Quick Start (Utunbu 14.04)
installation
Requirements
$ sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \
libreadline-dev libsqlite3-dev wget curl llvminstall pyenv
$ cd ~
$ git clone git://github.com/yyuu/pyenv.git .pyenv
$ echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
$ echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
$ echo 'eval "$(pyenv init -)"' >> ~/.bashrcinstall pyenv-virtualenv
$ git clone https://github.com/yyuu/pyenv-virtualenv.git ~/.pyenv/plugins/pyenv-virtualenv
$ echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc
$ exec $SHELLCommon Usage (Command Reference)
List all available versions
$ pyenv version -l Install python2.7.8 to pyenv
$ pyenv install 2.7.8 List installed versions
$ pyenv versions
* system (set by /home/oopsmonk/.pyenv/version)
2.7.8
3.4.2Creating a virtualenv
$ pyenv virtualenv 2.7.8 mypy-2.7.8List virtualenvs
$ pyenv virtualenvs
mypy-2.7.8 (created from /home/oopsmonk/.pyenv/versions/2.7.8)
mypy-3.4.2 (created from /home/oopsmonk/.pyenv/versions/3.4.2)
# current versions
$ pyenv versions
* system (set by /home/oopsmonk/.pyenv/version)
2.7.8
3.4.2
mypy-2.7.8
mypy-3.4.2Use python via virtualenv
# show current version
oopsmonk@VBox:~/markdown-note$ python --version
Python 2.7.6
# Change to other version
oopsmonk@VBox:~/markdown-note$ pyenv activate mypy-2.7.8
(mypy-2.7.8)oopsmonk@VBox:~/markdown-note$ python --version
Python 2.7.8
# Deactivate
(mypy-2.7.8)oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv deactivate
oopsmonk@oopsmonk-VBox:~/markdown-note$ python --version
Python 2.7.8
# Why current version is 2.7.8? it's supposed to 2.7.6.
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv activate mypy-3.4.2
(mypy-3.4.2) oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv deactivate
oopsmonk@oopsmonk-VBox:~/markdown-note$ python --version
Python 3.4.2
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv versions
system
2.7.8
3.4.2
mypy-2.7.8
* mypy-3.4.2 (set by PYENV_VERSION environment variable)
# delete a virtualenv
$ pyenv uninstall mypy-2.7.8
# Go back to original system version
$ alias pyenv_deactivate='pyenv deactivate && unset PYENV_VERSION'
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv activate mypy-3.4.2
(mypy-3.4.2) oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv_deactivate
oopsmonk@oopsmonk-VBox:~/markdown-note$ python --version
Python 2.7.6Use python via pyenv
# Global python version
$ pyenv global
# python version in current folder
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv local mypy-3.4.2
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv version
mypy-3.4.2 (set by /home/oopsmonk/markdown-note/.python-version)
oopsmonk@oopsmonk-VBox:~/markdown-note$ cd ..
oopsmonk@oopsmonk-VBox:~$ pyenv version
system (set by /home/oopsmonk/.pyenv/version)
oopsmonk@oopsmonk-VBox:~$ cd -
/home/oopsmonk/markdown-note
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv version
mypy-3.4.2 (set by /home/oopsmonk/markdown-note/.python-version)
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv local --unset
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv version
system (set by /home/oopsmonk/.pyenv/version)
# python version in current shell
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv shell mypy-3.4.2
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv version
mypy-3.4.2 (set by PYENV_VERSION environment variable)
oopsmonk@oopsmonk-VBox:~/markdown-note$ cd -
/home/oopsmonk
oopsmonk@oopsmonk-VBox:~$ pyenv version
mypy-3.4.2 (set by PYENV_VERSION environment variable)
oopsmonk@oopsmonk-VBox:~$ pyenv shell --unset
oopsmonk@oopsmonk-VBox:~$ pyenv version
system (set by /home/oopsmonk/.pyenv/version)
oopsmonk@oopsmonk-VBox:~$ cd -
/home/oopsmonk/markdown-note
oopsmonk@oopsmonk-VBox:~/markdown-note$ pyenv version
system (set by /home/oopsmonk/.pyenv/version)Monday, July 21, 2014
Raspberry Pi Monitor
Use RRDTool monitor Raspberry Pi, include CPU temperture, Memory usage, Disk I/O, Network I/O...
Install
install packages
sudo apt-get install libcairo2-dev libpango1.0-dev libglib2.0-dev libxml2-dev librrd-dev python2.7-dev rrdtool python-rrdtool
wget https://pypi.python.org/packages/source/p/psutil/psutil-2.1.1.tar.gz
tar xf psutil-2.1.1.tar.gz
cd psutil-2.1.1
sudo python setup.py installDownload or clone rpi-monitor on github
https://github.com/oopsmonk/rpi-monitor
Setup Crontab
By defualt, the cron.log is disabled in Raspbian. To enable it:
sudo vi /etc/rsyslog.conffind the line and uncomment it.
# cron.* /var/log/cron.logRestart rsyslog via:
sudo /etc/init.d/rsyslog restartModify crontab
crontab -eAdd schedule as below
#data collection every 5 minutes
*/5 * * * * /path/to/rpi-monitor/rpi_monitor.py
#generate daily graph report at 00:01
1 0 * * * /path/to/rpi-monitor/graphReport.py -1d
#generate weekly graph report at 00:03 on Monday
3 0 * * 1 /path/to/rpi-monitor/graphReport.py -1w Report example
Raspberry Pi Hardware
CPU Temperture
The temperture drop to 44 because I add a fan on CPU.
CPU Used Percentage
PID Count
Memory Usage
Mount point Usage
Mount Point Percentage
HDD I/O
eth0 I/O
eth1 I/O
Wednesday, August 7, 2013
Web dev example : JSON & jQuery Mobile & Bottle.
Bottle is a fast, simple and lightweight WSGI micro web-framework for Python.
jQuery Mobile base on jQuery for mobile device.
jQuery vs. jQuery Mobile vs. jQuery UI
Install bottle:
$ sudo apt-get install python-setuptools
$ easy_install bottleDemo server deployment
file structure:
BottlejQuery
├── bottleJQuery.py
└── index.htmlrun command:
$ ./bottleJQuery.pyconnect to server:
http://localhost:8080/bottle Building simple web server use bottle
bottleJQuery.py
#!/usr/bin/env python
from bottle import route, static_file, debug, run, get, redirect
from bottle import post, request
import os, inspect, json
#enable bottle debug
debug(True)
# WebApp route path
routePath = '/bottle'
# get directory of WebApp (bottleJQuery.py's dir)
rootPath = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
@route(routePath)
def rootHome():
return redirect(routePath+'/index.html')
@route(routePath + '/<filename:re:.*\.html>')
def html_file(filename):
return static_file(filename, root=rootPath)
@get(routePath + '/jsontest')
def testJsonGET():
print "GET Header : \n %s" % dict(request.headers) #for debug header
return {"id":2,"name":"Jone"}
@post(routePath + '/jsontest')
def testJsonPost():
print "POST Header : \n %s" % dict(request.headers) #for debug header
data = request.json
print "data : %s" % data
if data == None:
return json.dumps({'Status':"Failed!"})
else:
return json.dumps({'Status':"Success!"})
run(host='localhost', port=8080, reloader=True)Test GET request:
$ curl -i -X GET http://localhost:8080/bottle/jsontest
HTTP/1.0 200 OK
Date: Wed, 07 Aug 2013 16:03:53 GMT
Server: WSGIServer/0.1 Python/2.7.3
Content-Length: 25
Content-Type: application/json
{"id": 2, "name": "Jone"}bottle debug message:
GET Header :
{'Host': 'localhost:8080', 'Content-Type': 'text/plain', 'Content-Length': '', 'Accept': '*/*', 'User-Agent': 'curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3'}
localhost - - [08/Aug/2013 00:03:53] "GET /bottle/jsontest HTTP/1.1" 200 25Test POST request:
$ curl -X POST -H "Content-Type: application/json" -d '{"name":"OopsMonk","pwd":"abc"}' http://localhost:8080/bottle/jsontest
{"Status": "Success!"}bottle debug message:
POST Header :
{'Host': 'localhost:8080', 'Content-Type': 'application/json', 'Content-Length': '31', 'Accept': '*/*', 'User-Agent': 'curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3'}
data : {u'pwd': u'abc', u'name': u'OopsMonk'}
localhost - - [08/Aug/2013 00:04:56] "POST /bottle/jsontest HTTP/1.1" 200 22Building simple web page
Create 4 buttons in the index.html file:
jQuery.getJSON : use jQuery.getJSON API.
bottle debug message:GET Header : {'Content-Length': '', 'Accept-Language': 'zh-tw,zh;q=0.8,en-us;q=0.5,en;q=0.3', 'Accept-Encoding': 'gzip, deflate', 'Host': '127.0.0.1:8080', 'Accept': 'application/json, text/javascript, */*; q=0.01', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0', 'Connection': 'close', 'X-Requested-With': 'XMLHttpRequest', 'Referer': 'http://192.168.1.38/bottle/index.html', 'Content-Type': 'text/plain'} localhost - - [08/Aug/2013 00:42:08] "GET /bottle/jsontest HTTP/1.0" 200 25jQuery.post : use jQuery.post API.
Unfortunately it's not work, because the content-Type is fixed 'application/x-www-form-urlencoded; charset=UTF-8', that's a problem when using bottle.request.json API to retrieve JSON from request.
For this perpose we have to overwirte jQuery.post or use jQuery.ajax.
bottle debug message:POST Header : {'Content-Length': '22', 'Accept-Language': 'zh-tw,zh;q=0.8,en-us;q=0.5,en;q=0.3', 'Accept-Encoding': 'gzip, deflate', 'Host': '127.0.0.1:8080', 'Accept': 'application/json, text/javascript, */*; q=0.01', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0', 'Connection': 'close', 'X-Requested-With': 'XMLHttpRequest', 'Pragma': 'no-cache', 'Cache-Control': 'no-cache', 'Referer': 'http://192.168.1.38/bottle/index.html', 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'} data : None localhost - - [08/Aug/2013 00:55:17] "POST /bottle/jsontest HTTP/1.0" 200 21jQuery.ajax GET, jQuery.ajax POST : use jQuery.ajax API.
GET debug message:GET Header : {'Content-Length': '', 'Accept-Language': 'zh-tw,zh;q=0.8,en-us;q=0.5,en;q=0.3', 'Accept-Encoding': 'gzip, deflate', 'Host': '127.0.0.1:8080', 'Accept': 'application/json, text/javascript, */*; q=0.01', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0', 'Connection': 'close', 'X-Requested-With': 'XMLHttpRequest', 'Referer': 'http://192.168.1.38/bottle/index.html', 'Content-Type': 'text/plain'} localhost - - [08/Aug/2013 01:00:17] "GET /bottle/jsontest HTTP/1.0" 200 25POST debug message:
POST Header : {'Content-Length': '22', 'Accept-Language': 'zh-tw,zh;q=0.8,en-us;q=0.5,en;q=0.3', 'Accept-Encoding': 'gzip, deflate', 'Host': '127.0.0.1:8080', 'Accept': 'application/json, text/javascript, */*; q=0.01', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0', 'Connection': 'close', 'X-Requested-With': 'XMLHttpRequest', 'Pragma': 'no-cache', 'Cache-Control': 'no-cache', 'Referer': 'http://192.168.1.38/bottle/index.html', 'Content-Type': 'application/json; charset=utf-8'} data : {u'id': 3, u'name': u'Ping'} localhost - - [08/Aug/2013 01:01:40] "POST /bottle/jsontest HTTP/1.0" 200 22
index.html
<!DOCTYPE html>
<html>
<head>
<title>Bottle & jQuery Mobile</title>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.css" />
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.3.2/jquery.mobile-1.3.2.min.js"></script>
</head>
<body>
<h3>This is a example using jQuery Mobile and pyhton bottle fromwork. </h3>
<div data-role="controlgroup" data-type="horizontal">
<a href="#" id="btnGetJSON" data-role="button">jQuery.getJSON</a>
<a href="#" id="btnPOSTJSON" data-role="button">jQuery.post</a>
<a href="#" id="btnAJAXGet" data-role="button">jQuery.ajax GET</a>
<a href="#" id="btnAJAXPOST" data-role="button">jQuery.ajax POST</a>
</div>
<script>
//button action
$("#btnGetJSON").click(function(){
$.getJSON("jsontest", function(data){
$.each(data, function(index, value){
alert("index: " + index + " , value: "+ value);
});
});
});
$("#btnPOSTJSON").click(function(){
alert("Not easy work on bottle !!!");
/*
It's not work, send JSON via jQuery.post().
because the content-Type is not 'application/json',
The content type is fixed :
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
that's a problem on bottle.request.json.
*/
$.post(
"jsontest",
JSON.stringify({"id":3, "name":"Ping"}),
function(ret_data, st){
$.each(ret_data, function(index, value){
alert("index: " + index + " , value: "+ value);
});
alert("Server return status : " + st);
},
'json'
);
});
$("#btnAJAXGet").click(function(){
$.ajax
({
url: 'jsontest',
success: function(data){
$.each(data, function(index, value){
alert("index: " + index + " , value: "+ value);
});
},
/*
if dataType not set, the Accept in request header is:
'Accept': '* / *'
dataType = json :
'Accept': 'application/json, text/javascript, * /*; q=0.01'
*/
dataType: 'json'
});
});
$("#btnAJAXPOST").click(function(){
var post_data = {"id":3, "name":"Ping"};
$.ajax
({
type: 'POST',
url: 'jsontest',
data:JSON.stringify(post_data),
contentType: "application/json; charset=utf-8",
dataType: 'json',
success: function(data){
$.each(data, function(index, value){
alert("index: " + index + " , value: "+ value);
});
}
});
});
</script>
</body>
</html>Wednesday, July 31, 2013
Sending HTML Mail Using SMTP With Authorization
Here is a text/plain MIME type parts in official exmaple code.
I remove it from my sample code, because it's not show up in mail at Office Outlook 2010.
#!/usr/bin/env python
"""
File name: sendMail.py
Python send HTML mail using SMTP with authorization
Usage :
./sendMail.py to@gmail.com Subtitle [ FilePath | txt ]
"""
import smtplib
import sys,traceback
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from time import gmtime, strftime
#log file location
log_path = "./mail-log";
#log timestamp format
logger_tstamp = "%Y-%m-%d %H:%M:%S"
#SMPT server
smtp_server = "smtp.gmail.com"
#gmail 465 or 578
smtp_port = 587
#mail from
user = "from@gmail.com"
pwd = "password"
# log method
class Logger:
file = 1
err = 2
class ContentType:
file = 1
txt = 2
#select log method
debug_log = Logger.err
#select content type
content_type = ContentType.txt
def debug(msg):
if debug_log == Logger.file:
with open(log_path, 'a') as log_file:
log_file.write(strftime(logger_tstamp, gmtime()) + msg)
log_file.close()
elif debug_log == Logger.err:
sys.stderr.write(strftime(logger_tstamp, gmtime()) + msg)
else:
print(strftime(logger_tstamp, gmtime()) + msg)
#check argument number
arg_count = len(sys.argv)
if arg_count !=4:
debug("[Error]: invalid argument\n")
sys.exit(1)
try:
mail_to = sys.argv[1]
subject = sys.argv[2]
if content_type == ContentType.file:
content_path = sys.argv[3]
with open(content_path, 'r') as f_content:
content = f_content.read()
f_content.close()
else:
content = sys.argv[3]
serv = smtplib.SMTP(smtp_server, smtp_port)
# serv.ehlo()
serv.starttls()
# serv.ehlo()
serv.login(user, pwd);
msg = MIMEMultipart('alternative')
msg['Subject'] = subject
msg['From'] = user
msg['To'] = mail_to
part1 = MIMEText(content, 'html')
msg.attach(part1)
serv.sendmail(user, mail_to, msg.as_string())
serv.quit()
debug("[Debug] subject : " + subject + "\n")
except:
debug("[Error]: send mail error\n")
debug("[Error]:\n" + traceback.format_exc())
sys.exit(2);Reference:
email: Examples
smtplib
How to send email in Python via SMTPLIB
Friday, July 5, 2013
Redirect and Save iptables on Ubuntu 12.04
Redirect port 8080 to 80
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080 Check iptables setting
sudo iptables -t nat -L Save configure to iptables.rules
sudo iptables-save > /etc/iptables.rules Save Solution #1
Configre /etc/network/interfaces
iface eth0 inet dhcp
pre-up iptables-restore < /etc/iptables.rules Save Solution #2
Configure /etc/network/if-pre-up.d/iptablesload
#!/bin/sh
iptables-restore < /etc/iptables.rules
exit 0Configure /etc/network/if-post-down.d/iptablessave
#!/bin/sh
iptables-save -c > /etc/iptables.rules
if [ -f /etc/iptables.downrules ]; then
iptables-restore < /etc/iptables.downrules
fi
exit 0Change permissions
sudo chmod +x /etc/network/if-post-down.d/iptablessave
sudo chmod +x /etc/network/if-pre-up.d/iptablesload Reference:
Tomcat: redirecting traffic from port 8080 to 80 using iptables
IptablesHowTo
Thursday, June 20, 2013
Setup Raspberry Pi server environment
Update @ 2014/12/27
Install Raspbian "wheezy" image
Download image from Raspberry Pi offical websiteMount HOME to HDD
- Copy HOME data to disk
$ sudo mkdir /media/new_home $ sudo mount /dev/sda1 /media/new_home $ sudo rsync -aXS /home/. /media/new_home/. $ sudo umount /media/new_home - fstab
#get disk UUID $ sudo blkid /dev/mmcblk0p1: SEC_TYPE="msdos" LABEL="boot" UUID="936C-7122" TYPE="vfat" /dev/mmcblk0p2: UUID="c1198422-7a7c-4863-8a8f-45a1db26b4f2" TYPE="ext4" /dev/sda1: UUID="2cd990b5-6c27-4933-95d0-fd00b000fe77" TYPE="ext4" #modify fstab $ echo "UUID=2cd880b5-6c27-4933-95d0-fd00b000fe77 /home ext4 defaults 0 2" | sudo tee --append /etc/fstab #mount HOMW without reboot. $ sudo mount -a
Create a sudo user
#create user with HOME directory
$ sudo useradd -m oopsmonk
#add user to sudo group
$ sudo adduser oopsmonk sudo
#set password
$ sudo passwd oopsmonk Install necessary packages
$ sudo aptitude full-upgrade -y
$ sudo aptitude install tmux vim git python-setuptools -y
$ sudo easy_install pipSAMBA server
$ sudo aptitude install samba
$ sudo cp /etc/samba/smb.conf /etc/samba/smb.conf.bak
$ sudo vi /etc/samba/smb.conf
enable sucurity user
# security = user
[rpi]
comment = raspberry-pi
path = /home/oopsmonk/
browseable = yes
writable = yes
read only = no
#add smaba user and restart samba server
$ sudo pdbedit -a -u oopsmonk
$ sudo service samba restartConfigre default editor
$ echo "export EDITOR=vim" >> ~/.bashrc
$ echo "export GIT_EDITOR=vim" >> ~/.bashrc
$ echo "export TERM=screen-256color" >> ~/.bashrc
$ echo "alias tmux='tmux -2'" >> ~/.bashrc
$ source ~/.bashrcBoot from USB Disk
- Use dd or Win32DiskImager dump image to both SD card and USB Disk.
- Use
gpartedto expand root partition to full USB disk. - Change
cmdline.txton sdcard fromroot=/dev/mmcblk0p2toroot=/dev/sda2
dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/sda2 rootfstype=ext4 elevator=deadline rootwait - Plug both sdcard and USB disk into Raspberry Pi, bootup system.
exFat support
Defualt cannot mount exFAT filesystem, why exFAT?- NTFS performance is so bad.
- Single file limited to 4GB in FAT32.
sudo apt-get install exfat-fuse FTP server setup
Install vsftpd
$ sudo apt-get install vsftpd
$ sudo cp /etc/vsftpd.conf /etc/vsftpd.conf.bak
Modify vsftpd.conf
$ sudo vi /etc/vsftpd.conf
anonymous_enable=NO
local_enable=YES
write_enable=YES
force_dot_files=YES #Add at bottom $ sudo service vsftpd restart http://www.wikihow.com/Make-a-Raspberry-Pi-Web-Server
http://www.vuplus-community.net/board/threads/howto-make-an-ftp-server-with-your-raspberry.7245/
http://www.instructables.com/id/Raspberry-Pi-Web-Server/step9/Install-an-FTP-server/
BT download server setup
Install transmission-daemon$ sudo apt-get install transmission-daemon $ cd /etc/transmission-daemon
$ sudo cp settings.json settings.json.bak
$ sudo vi settings.json
#Change download folder
"download-dir": "/home/oopsmonk/BT-Download"
#Accept connection from all ip address
"rpc-whitelist": "*.*.*.*"
#Web GUI login account setting
"rpc-username": "oopsmonk"
"rpc-password": "web-login-pwd"
"umask": 2debian-transmission user.Reload config
$ sudo service transmission-daemon reload http://localhost:9091/transmission
Nginx proxy setup for BT server
Why should use proxy??Some firewall allow connect to internet using 80 port only.
In this case, we can use proxy redirect 9091 to 80 port.
$ sudo install nginx
$ sudo service nginx stop
$ sudo vi /etc/nginx/sites-available/default
server{
#listen 80; ## listen for ipv4; this line is default and implied
#listen [::]:80 default_server ipv6only=on; ## listen for ipv6
...
location /bt {
proxy_pass http://127.0.0.1:9091/transmission;
}
...
}
$ sudo service nginx start http://localhost/bt/web/
Do not forget the
/ in end of URL.Reference:
Setting Up Transmission’s Web Interface
Linux防健忘日誌No.69-Ubuntu 12.04 安裝及設定transmission-daemon
USB Wifi setup
Check USB wifi driver
$ sudo lsusb
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0b05:1786 ASUSTek Computer, Inc. USB-N10 802.11n Network Adapter [Realtek RTL8188SU]
Bus 001 Device 005: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 001 Device 006: ID 0bc2:5061 Seagate RSS LLCSupported wifi dongle list can find at http://elinux.org/RPi_VerifiedPeripherals#USB_Wi-Fi_Adapters
Wifi scan test
$ sudo iwlist wlan0 scan | grep ESSID
ESSID:"CH_Lee"
ESSID:"iHome01"
ESSID:"WALL-E"
ESSID:"AndyStella"
ESSID:"My home wifi"
ESSID:"HC-SY"
ESSID:"default"
Configure /etc/network/interfaces
auto wlan0
iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
wpa-ssid "XXXXXX"
wpa-psk "YYYYYY"
iface default inet dhcpPPPoE setup
Install pppoeconf
$ sudo apt-get install pppoeconf
$ sudo pppoeconfSatrt DSL connection
$ sudo pon dsl-provider $ sudo poff $ sudo plog
or
$ ifconfig ppp0 Run MOC issue
Update: 2013/08/14When run moc get an error as bellow:
$ mocp
Running the server...
Trying JACK...
Trying ALSA...
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4720:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default
Trying OSS...
FATAL_ERROR: No valid sound driver!
FATAL_ERROR: Server exited!$ lsmod
Module Size Used by
xt_TCPMSS 3119 1
xt_tcpmss 1301 1
xt_tcpudp 2087 1
iptable_mangle 1467 1
ip_tables 11482 1 iptable_mangle
x_tables 16865 5 ip_tables,xt_tcpmss,xt_tcpudp,xt_TCPMSS,iptable_mangle
pppoe 11317 2
pppox 2445 1 pppoe
ppp_generic 25397 6 pppoe,pppox
slhc 5679 1 ppp_generic
snd_bcm2835 16304 0
snd_pcm 77560 1 snd_bcm2835
snd_page_alloc 5145 1 snd_pcm
snd_seq 53329 0
snd_seq_device 6438 1 snd_seq
snd_timer 19998 2 snd_pcm,snd_seq
snd 58447 5 snd_bcm2835,snd_timer,snd_pcm,snd_seq,snd_seq_device
leds_gpio 2235 0
led_class 3562 1 leds_gpio
$ sudo ls -al /dev/snd/*
crw-rw---T 1 root audio 116, 0 Aug 14 10:49 /dev/snd/controlC0
crw-rw---T 1 root audio 116, 16 Aug 14 10:49 /dev/snd/pcmC0D0p
crw-rw---T 1 root audio 116, 1 Aug 14 10:49 /dev/snd/seq
crw-rw---T 1 root audio 116, 33 Aug 14 10:49 /dev/snd/timerChange permission:
$ sudo chmod 666 /dev/snd/*Wednesday, June 19, 2013
Install JDK1.4.2(32bit) on Ubuntu 12.04 LTS(64bit)
Here is an error occurred if installed directly:
install.sfx.XXX: not found
Solution:
install g++-mltilib and JDK
$ sudo apt-get install g++-multilib $ chmod +x j2sdk-1_4_2_19-linux-i586.bin $ ./j2sdk-1_4_2_19-linux-i586.bin ..... Do you agree to the above license terms? [yes or no] yes Unpacking... Checksumming... 0 0 Extracting... UnZipSFX 5.40 of 28 November 1998, by Info-ZIP (Zip-Bugs@lists.wku.edu). creating: j2sdk1.4.2_19/ creating: j2sdk1.4.2_19/jre/ creating: j2sdk1.4.2_19/jre/bin/ inflating: j2sdk1.4.2_19/jre/bin/java inflating: j2sdk1.4.2_19/jre/bin/keytool inflating: j2sdk1.4.2_19/jre/bin/policytool .... Creating j2sdk1.4.2_19/lib/tools.jar Creating j2sdk1.4.2_19/jre/lib/rt.jar Creating j2sdk1.4.2_19/jre/lib/jsse.jar Creating j2sdk1.4.2_19/jre/lib/charsets.jar Creating j2sdk1.4.2_19/jre/lib/ext/localedata.jar Creating j2sdk1.4.2_19/jre/lib/plugin.jar Creating j2sdk1.4.2_19/jre/javaws/javaws.jar Done. $ sudo mkdir -p /usr/lib/jvm $ sudo mv j2sdk1.4.2_19 /usr/lib/jvm/java-1.4.2_19Java environment configuration.
$ wget http://webupd8.googlecode.com/files/update-java-0.5b $ chmod +x update-java-0.5b $ sudo ./update-java-0.5bSelect java-1.4.2_19
Check java version
$ java -version java version "1.4.2_19" Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_19-b04) Java HotSpot(TM) Client VM (build 1.4.2_19-b04, mixed mode)
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