Teru's blog

SSL

struggling with the procedure to make https connection available for the domain emediajp, running apache on my home server (Ubuntu9.04 server).

> sudo su
> mkdir -p /etc/ssl/private
> openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr
root@yarrow:/etc/ssl/private# sudo openssl req -
out server.key -out server.csrey 
Generating a 2048 bit RSA private key
..+++
................................................................................
.....+++
writing new private key to 'server.key'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:JP
State or Province Name (full name) [Some-State]:Yamagata
Locality Name (eg, city) []:Yamagata-shi
Organization Name (eg, company) [Internet Widgits Pty Ltd]:YUI
Organizational Unit Name (eg, section) []:RD
Common Name (eg, YOUR name) []:*.emedia.jp
Email Address []:admin@emedia.jp

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:

make sure to specify the name as *.emedia.jp for subdomains.

Access to http://www.cacert.org/, create an account, login, register email, register domain *.emedia.jp. Click Server Certificates, and paste all of the lines of server.csr in the textarea.

Set permission

> chown root:ssl-certs server.*
> chmod 400 server.key
> chmod 440 server.csr
> chmod 444 server.crt

Edit /etc/apache2/sites-available/default-ssl.

SSLCertificateFile      /etc/ssl/private/server.crt
        SSLCertificateKeyFile   /etc/ssl/private/server.key

Enable it

> a2ensite default-ssl
>/etc/init.d/apache restart

Access to https://192.168.1.81/ from a PC over LAN. Success!

irc setup

here's a memo on setting up an irc on ubuntu.

installed Pidgin internet messenger by choosing it from the menu pplication -> Addition/Removal. add an irc account by choosing the menu Account -> Manage Accounts -> Add. chose the server irc.freenode.net. joined chat. to register a user name on irc, went thru the followin procedure:

set nickserv propeties on NickServ tab:
    /msg nickserv help
    /msg nickserv register password email_address
    /msg nickserv set hidemail
    /msg nickserv identify nickname password

reply to the mail sent from NIckServ to verify the email address.

/msg/nickserv info

shows the current status of the account.

Android

Google announced on Oct. 21, 2008, that Android is now open source, and shows how to build Android on Ubuntu. Seems very promising as an open-source platform for developing open/commercial software.

Here's a list of URLs for reference:

• http://code.google.com/android/
  Android - An Open Handset Alliance Project
• http://android-developers.blogspot.com/2008/10/android-is-now-open-source.html
  Android is now Open Source
• http://d.hatena.ne.jp/bs-android/20081022/1224697566
  Androidのソースコードがリリースされました
• http://radicaladaptor.blogspot.com/2008/10/using-android-platform-for-prototyping.html
  Using the Android platform for prototyping of embedded appliances

Makefile

When I tried to run "make clean" on the snakelet path /var/local/Snakelets-1.44 on Ubuntu 7.10 server, an error occurred. Changing some opitons corrected the problem. Here's a "clean" part of Makefile I use now:

clean:
        @echo "Removing stray logfiles, .pyo/.pyc files..."
        find . -name \*.pyo -type f -print0 | xargs -0 /bin/rm -f
        find . -name \*.pyc -type f -print0 | xargs -0 /bin/rm -f
        find . -name \*.swp -type f -print0 | xargs -0 /bin/rm -f
        find . -name \*~ -type f -print0 | xargs -0 /bin/rm -f
        find . -name \*_log -type f -print0 | xargs -0 /bin/rm -f
        find . -name \*.log -type f -print0 | xargs -0 /bin/rm -f
        find . -name \*.log.? -type -print0 | xargs -0 /bin/rm -f
        find . -name \*.log.?? -type f -print0 | xargs -0 /bin/rm -f
        @echo "Removing non-CVS files..."
        rm -fv MANIFEST 
        rm -rf build
        rm -rf logs/server.pid
        find . -name  .#\* -type f -print0 | xargs -0 /bin/rm -f
        @echo "clean!"

Markup 2

Well, list tags should work:

• this is the first item.
• this is the second.
• this is the third.

Yay, it works

Still cannot figure why the internal link to /frog/files/Teru doesn't work Let me try again... Nope

Googled on the keywords 403 Deeplinking because the error message showed so, I found the code below in webapps/frog/frog/snakelets.py as follows:

def serve(self, request, response):
        if not request.getReferer().startswith(request.getBaseURL()):
            # deeplink attempted (request without a referer header)
            if not self.getWebApp().getConfigItem("allowdeeplinks"):
                return response.sendError(403, "deeplinking not allowed")

It's the code part to check "deeplinking". Let me comment out the part temporarily, and see what happens. Wow! It wooooooooorrrrrrrked! Now, the picture looks too big. Let me add an attribute to make it smaller.
OK, but, when I add a space around the character |, it doesn't work... why? By the way, how can I escape the tag expression here... By code tag?

[@logo-Ubuntu.png|w=50%]

Good. What I meant above is, when I　write

[@logo-Ubuntu.png | w=50%]

it doesn't work.

Markup

Let's see how markup tags work to format a page. Let me test the ones provided in this page on editing mode below.

First, this is a bold type. How about Italic. OK, add underline to this. When showing a code,

#import <stdio.h>

void main(int argc, char **argv)
{
   printf("%s", "Helllo, world!\n");
}

A quote is like

Time is money, nay.

Yahoo's URL is http://www.yahoo.com/. This is also a link to Yahoo!.

To include an image, I uploaded it, and show it below: ... oops, it ain't work (well, it worked later by commenting out the deeplink checker.) But, if the image is specified as http://yuwayuwa.net/images/hureai_nka.jpg, then it works as below: Ooops, a funny smiley showed up on the file name... Ah, I have to be careful not to use the file name like that

日本語は？

Let's see if I can use Japanese characters here. ここでは、日本語を書くことができるでしょうか。 How does it look like on your browser?

Start-off!

Just installed this blog software. OK, it works! Only in English so far. I am going to use this as my blog site, while learning how this software works. Hopefully, it will help me get used to the scripting language Python.