Archive for the ‘apache’ Category

The Open Source Movement

January 13, 2010

http://www.gnu.org/philosophy/free-sw.html

Giri writes:

We both know that we can call ourself as free software advocate because we both know the role of F/OSS in today’s world and we also understand clearly the importance of F/OSS and Linux for everyone.

I believe F/OSS and Linux will help to change the world to a better place and I imagine where everybody with different circumstances or people with difficulties can share the same knowledge as we do.
Richard Stallman the president of GNU has write a definition about Free Software

http://www.gnu.org/philosophy/free-sw.html

from the link above i understand that Free is not always about Money but Free in Free software is like free as in Freedom.
Open Source offering flexibility in design. Eric S Raymond in his essay

http://www.catb.org/esr/writings/cathedral-bazaar/cathedral-bazaar/cathedral-bazaar.ps

said that Open Source development is A’la Bazaar which means that every software has to be like a cathedral, built together with care.

But there’s something bothering me about this F/OSS movement.

In my opinion F/OSS can never fulfill it’s aim if there’s no cooperation between software developers, GNU and international organization. we can look at the One Laptop Per Child (OLPC) project or the cooperation between UNESCO and GNU to promote F/OSS usage.

From my opinion above, I want to know what you’re thinking. please add some points that I missed. And I want to know if U.S government ever promote the usage of F/OSS and Linux in educational institutions in America? Is there any Linux Adoption

http://en.wikipedia.org/wiki/Linux_adoption

in America? If yes, what’s the result.

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2nd Attempt Ubuntu Multiple Local Sites Apache2

December 2, 2009

Note, my user name is always bryan, because he gave me his old machine, with a password on it, so I just keep everything the same, for convenience.

Step 1:
Terminal
sudo chown bryan /var/www

Step 2: having given myself rights with that above chown command
I should be able to create folders withing /var/www
e.g. /var/www/proj1

and then invoke the 1st pg of the application by typing into the browser

localhost/proj1/report.html

I shall test this, and place the exercises from Head First PHP MySQL into a folder /var/www/proj1 and see if the exercise works

The only question that remains in my mind is whether the exercise pages will work unchanges, honoring /var/www/proj1 as the root, or whether I need to issue some other command to MAKE proj1 the default directory, or whether I have to hard code paths into all the exercise pages, which, if I do, would kind of defeat the purpose of developing a project in a folder, and then transparently moving it to some other location.

What follows is the raw text from the IRC channel where I asked my questions. I sorted through it to come up with the above, step-by-step procedure to achieve my goals.

+++ the steps WORK AND here is my email feedback to the person that gave me the valuable guidance:

You saved me HOURS of grief, and made it possible for me to now make rapid progress with my HEAD FIRST book. And Yes, I want to pay $60 for the paperback, because I want to be able to take it in the bathroom or on the subway. I want to really let all this PHP MySQL stuff sink in, and become second nature, for the simple reason that I am sick and tired of years of bondage to Micr0$oft and products like Access (or worse VISUAL FOXPRO which they finally dropped as a supported product). I figure that php mysql apache is the best choice for me, because I can kind of understand whats going on, and there is tons of documentation to make it work, but forum and IRC support (like YOUR excellent patient help).

You are CORRECT, THAT YOU did tell me what I need to know, but you did not realize that as a beginner, I cannot recognize the right answer UNTIL certain concepts sink in. Once I did the CHOWN trick you showed me, then I could navigate with the GUI, to /var/www and create a folder, proj1. Then I could navigate to my Desktop to a folder where I put two of the Head First exercises, but with the word TEST inserted in each field, so I would KNOW that it was these executing, and that I was not somehow executing the same original pages in /var/www . Now, I could NOT get Desktop/testwww/report.html to run and then correctly post with report.php and see the added record in the MySQL database with phpmyadmin.

BUT, as soon as it dawned upon me the simple steps you were saying, I copied to cloned files to /var/www/proj1 went to my folder and entered localhost/report.html, actually SAW the cloned version come up with TEST prefixed to each field, I entered data prefixed by TEST so I would see it in the mysql table,… pressed submit, and BINGO, when I did localhost/phpmyadmin and signed in, there was the new record in the sql table.

SO, you see, for a beginner, the Head First book leaves out a VERY IMPORTANT CONCEPT, about creating folders for projects in /var/www and doing the CHOWN trick once, up front, to allow access.

THANKS! And, as you will notice from my blog, when I asked the same question in IRC last week, someone thought that I wanted to do that
http://www.debian-administration.org/articles/412 complex business (which was CORRECT, if I wanted to access separate projects from some remote client, BUT unnecessary for my simple desktop purposes).

And here is the RAW irc chat to illustrate what a beginner may have to do to sort out the proper answers from a technically savvy person trying to help.
++++++++++++++++++++++++++++++

I am trying to set up several websites on my desktop ubuntu under Apache 2, and I have a detailed tutorial, but it says I need my IP address, but

sudo ipconfig gives me an internal, and

whatismyip.com gives me an external, any clues as to which is required, thanks

[04:08] WilliamBuell: what IP address? where do you want to reach them from?

(the answer, as it turns out, which I did not make clear to the IRC channel, is that I only want to make this stuff work from my DESKTOP, not from some remote client on the internet, which might require some ip address)

[04:08] thanks I am following this excellent tutorial on apache2 multiple sites

http://www.debian-administration.org/articles/412

[04:09] I have Ubuntu desktop with LAMP installed, but can only get php pages to work in /var/www

[04:09] I want to be able to have several projects i.e /home/proj1

[04:09] WilliamBuell: that’s where they should go

[04:09] why not put them in /var/www?

(this turns out to be an EXCELLENT QUESTION!)

[04:10] the tutorial mentions IP address but does not indicate whether it is EXTERNAL from whatismyip.com or local from

sudo ifconfig

[04:10] BECAUSE I would need a different name for each html and php page

[04:10] WilliamBuell: where are you trying to access them from? you shouldn’t need an ip address at all most likely

[04:11] suppose I am following several tutorials, with several pages with same name, they cannot BOTH be in /var/www

[04:11] why not /var/www/proj1, /var/www/proj2?

[04:11] and i dont know how to access some search path that would support /var/www/proj1

[04:12] or does apache2 lamp automatically honor any folder within www

[04:12] yes, automatically http://localhost/folder

(above is the KEY CONCEPT that I needed)

[04:12] and, if so (i am total beginner) ….

aha…. localhost/folder seems to make sense to me

[04:13] next question in TERMINAL does it matter HOW i create those folders, i mean do i have to be sudo or root

[04:13] do permissions matter?

[04:13] what would the proper command be to create the folder in /var/www would it be mkdir /home/www/www.example.com
[04:14] with sudo mkdir /home/www/www.example.com

[04:14] except it would be sudo mkdir /var/www/www.example.com

[04:14] if i follow along with this one tutorial

[04:15] but that tutorial is talking about MULTIPLENAMEHOST

[04:15] WilliamBuell: you can cheat and do sudo chown USER /var/www

( the above is the OTHER KEY CONCEPT that I require.. and if it works, then I can navigate in a GUI file folder system and create project folders at will, without fussing with sudo permissions)

[04:15] it sounds like you are saying if I simply create a folder in /var/www/proj1 that it will work from localhost/proj1

[04:15] WilliamBuell: only on a desktop though
[04:16] WilliamBuell: correct

[04:16] i am a 60 year old total beginner, so i dont need hints like “you can cheat” I am truly lost

[04:17] so i should say from TERMINAL sudo chown bryan /var/www but… HOW DO I MAKE THE FOLDER PROJ1
[04:17] i mean the chown command is changing rights or something

[04:17] chown changes the ownership of the file
[04:17] nothing else

[04:17] WilliamBuell: oh, one you own the folder, you can go into /var/www and make whatever you want 🙂

[04:18] in other words, from terminal, what is the command to correctly creat /var/www/proj1 with all the proper user rights for apache2 to work

[04:18] BUT, whenever i go into /var/www it doesnt let me do stuff i dont think unless i am root admin

[04:18] WilliamBuell: the support here is not too great… might want to try a support channel

[04:18] WilliamBuell: yeah, that’s why I suggested owning the folder

[04:18] yeah, but you guys know this like the back of your hand

[04:19] once you do that, you can mkdir in /var/www all you wnat

[04:19] and you just cant give a beginner the command to create the folder

[04:19] WilliamBuell: if we did we would have told you straight away

[04:19] so, you say , create the folder, and then use chown to change ownership?
[04:19] and then everything will be honkey dory ok

[04:19] WilliamBuell: no, chown /var/www, then you can create all the folders you want without sudo

[04:21] ok so sudo chown bryan /var/www gives me the rights, then i should be able to navigate with the gui and create proj1

[04:21] WilliamBuell: yep 🙂

[04:21] aha… now that is making sense to this beginner brain
[04:22] and i WONT need to mess with that other tutorial
[04:22] since i only want stuff to work locally…

[04:22] WilliamBuell: right no apache configs 🙂

[04:23] BUT, second question,…. if i make a bunch of php html pages in /var/www/proj1 do I need explicit paths to the other pages, or will they default to that local directory

[04:23] and is there some command i need to issue to make /var/www/proj1 a local directory for that session

[04:23] WilliamBuell: not sure I’m following

[04:23] WilliamBuell: not sure you’re sure what you’re asking
[04:24] http://localhost basically loads what’s in /var/www

[04:24] ok… you are telling me if i do all this then from browser .. i type localhost/proj1/report.html and it comes up

[04:24] yep

[04:24] but INSIDE report.html it is going to POST to report.php

[04:24] if you have /var/www/proj1/report.html

[04:24] yeah, default is current folder

[04:24] but, it will know enough to look in var/www/proj1 without
[04:25] well, it looks in http://localhost/proj1/report.php
[04:25] or rather posts to

[04:25] aha, and the very act of launching the project as localhost/proj1 is sufficient to make that the local directory for the entier project session

[04:25] which should correspond to /var/www/proj1/report.php
[04:25] if so, that makes sense

[04:25] WilliamBuell: not sure you quite get URL vs local path
[04:25] it’s not for the session

[04:25] in other words, i dont have to HARD CODE specific addresses in each html and php…

[04:26] that’s just how it it

[04:26] WilliamBuell: that you have to do
[04:26] i want to develop something in /var/www/proj1 test it , but have it work if i move it somewhere else

[04:26] WilliamBuell: why not just have a .php file?
[04:26] why have anything .html?

[04:26] well, i dont know enough to understand your hint

[04:26] WilliamBuell: a PHP file can have HTML and PHP in it

[04:27] because, the tutorial book i am following starts with report.html posting with report.php… but now i see what you are saying

[04:27] WilliamBuell: what book?

[04:27] but, php or html, is not germain to my path question at hand

[04:27] it is a great book called HEAD FIRST php mysql, which leads you step by step, including cookie sessions

[04:28] i have in my blog links to the book

[04:28] i am buying the book for $60 tomorrow, and i already downloaded a zip file of all the source code exercises from the publisher

[04:29] WilliamBuell: do you have any programming background and are you interested in mysql>??

[04:29] i started programming in 1979, through the 1980s, with stuff like cobol, rpg, then basic, then pick

[04:29] WilliamBuell: BTW, you know you can get it as an ebook for $36

[04:29] i am not a moron

[04:30] i just have some simple questions which in reality have very simple answers, but getting straight answers from techie types is like pulling teeth
[04:31] WilliamBuell: do you like head first series?

Sending Email from PHP in Ubuntu Desktop

November 28, 2009

http://ubuntuforums.org/showthread.php?t=135397

Re: Path of Sendmail
Open synaptic and search for sendmail. Then install it from there.

Sendmail will then be found in /usr/sbin/sendmail

; For Win32 only.
;sendmail_from = me@localhost.com

; For Unix only. You may supply arguments as well (default: “sendmail -t -i”).
sendmail_path = /usr/sbin/sendmail -t -i

or possibly:
sendmail_path = /usr/sbin/sendmail -i -t
or
sendmail_path = /usr/lib/sendmail -i -t

MY PHP.INI file is located in /etc/php5/apache2

I go into TERMINAL and type

sudo gedit
It prompts me for the root password
and then I am in gedit with superadmin rights and I can navigate to the php.ini file and change it. The very first thing I ever did was to open php.ini and do SAVE AS to original.php.ini so I can always revert back to the default.

http://ubuntuforums.org/showthread.php?t=331137

NOTE: THE synaptic mgr install of POSTFIX will remove SENDMAIL.
what worked for me was:
apt-get install postfix

and then edit php.ini
Relevant lines in /etc/php5/apache2/php.ini:

[mail function]
; For Win32 only.
SMTP = localhost
smtp_port = 25

; For Win32 only.
;sendmail_from = me@example.com

; For Unix only. You may supply arguments as well (default: “sendmail -t -i”).
sendmail_path = /usr/sbin/sendmail -t -i

and edited /etc/postfix/main.cf and put my correct external smtp server
relayhost = smtpauth.earthlink.net

restart the services that had configuration changes

During the postfix installation, I chose the Internet Configuration. If you hover the mouse over the choice field, a tool tip will explain all the choices. I noticed that it offered me bryan-desktop as a name for the system, so I stuck with that, since it might be required, and I have no idea how to find the name of my system.

Now all I need to do is TERMINAL sudo gedit

and edited /etc/postfix/main.cf and put my correct external smtp server
example – relayhost = smtpauth.earthlink.net

(but mine will I THINK be smpt.gmail.com

restart the services that had configuration changes

OF COURSE, the first thing I do when I gedit main.cf is to
SAVE AS original.main.cf, close, and reopen main.cf

When I make the above mentioned chage to the file, I find:

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

AND HERE IS WHAT I FIND IN THE README FILE, NONE OF WHICH SEEMS VERY HELPFUL:

There are some significant differences between the Debian Postfix packages,
and the source from upstream:

1. The Debian install is chrooted by default.
2. Dynamically loadable map support.
3. For policy reasons:
a. SASL configuration goes in /etc/postfix/sasl
b. myhostname=/path/to/file is supported (and used) in main.cf
4. smtp_line_length_limit defaults to 0, instead of 990, in absolute
violation of the RFC. Note that mailers in the path will still
potentially split the line, though. This will be removed at some
point in the future.
5. IPV6 support is enabled: postfix listens on ipv6/ipv4 by default,
(see: inet_protocols)
6. TLS/SASL support is enabled.
7. rmail comes from sendmail, not from postfix.
8. The upstream main.cf is delivered as /usr/share/postfix/main.cf.dist,
rather than cluttering /etc/postfix/main.cf with comments.

Known caveats:
1. The dynamically loadable modules are not found in the chroot.
Therefore, proxy maps may require you to copy the appropriate shared
object into the chroot if you chroot the proxy service in master.cf.
2. Some map types (and SASL support) require some extra configuration
(beyond what upstream indicates) to run inside the chroot. The simplest
solution for the maps is to use the proxy service, which is not chrooted.
SASL is a bit more complex, and is on the TODO list…
3. Note that the chrooted daemons open /dev/log before chrooting, so if your
syslog daemon is restarted, the daemons will be unable to reconnect to the
syslog socket, and hence being unable to log. The postfix package provides
a config snipped for the rsyslog daemon in /etc/rsyslog.d/postfix.conf to
also open a socket in /var/log/postfix/dev. For other syslog daemons, you
will also have to restart postfix after restarting the syslog daemon, or
configure it to open an additional socket.
a. For sysklogd (the default in Debian versions prior to Lenny), add
SYSLOG=”-a /var/spool/postfix/dev/log” to /etc/default/syslog.
b. For inetutils-syslogd, add SYSLOGD_OPTS=”-a /var/spool/postfix/dev/log” to
/etc/default/inetutils-syslogd.

HERE IS A LINK THAT LOOKS MORE HELPFUL

http://behindmyscreen.newsvine.com/_news/2006/12/31/501615-configuringubuntu-postfix-and-gmail-in-101-easy-steps

Ubuntu Apache Path Question

November 28, 2009

I successfully installed LAMP (see another blog post here for details).

I KNOW that I can place files in /var/www such as .html and .php and .css and those files will be found and executed whenever I launch the browser and type localhost/report.html (i.e. if report.html is in /var/www it will run, and if it calles report.php and that file is in /var/www it will execute.

HERE IS MY QUESTION:

Suppost I want to have different folders holding different applications. What do I need to do to guarantee that Apache and PhP and MySQL will execute properly when invoked by files in a different folder.

I did find THIS in google:

There’s a ‘doc_root = ‘ in php.ini.
There’s also ‘DocumentRoot “drive:/path/”‘, ‘

and ‘DirectoryIndex index.html index.php otherfile.ext’ in the
httpd.

Does that mean that I should simply edit php.ini and put a search path?

SOMEONE IN KUBUNTU IRC CHANNEL told me I should google. Then they said they do not know too much but it is probably in php.ini which is a well documented file, so I took a second look and found:

;;;;;;;;;;;;;;;;;;;
; About php.ini ;
;;;;;;;;;;;;;;;;;;;
; This file controls many aspects of PHP’s behavior. In order for PHP to
; read it, it must be named ‘php.ini’. PHP looks for it in the current
; working directory, in the path designated by the environment variable
; PHPRC, and in the path that was defined in compile time (in that order).
; Under Windows, the compile-time path is the Windows directory. The
; path in which the php.ini file is looked for can be overridden using
; the -c argument in command line mode.

THIS LEADS ME TO BELIEVE THAT IF IN TERMINAL I issue cd /Desktop/testwww that perhaps that becomes the “current directory” and hence, in the browser, issuing the localhost/report.html would now look in that current directory. I will test out this theory.

I AM MAKING SLIGHT PROGRESS, because I created on Desktop testwww and I discover that the following link in the browser will open a copy of my file

file:///home/bryan/Desktop/testwww/report.html

so now all I need to do is copy the php there and see if it executes ok.

So far, it does not seem to work!?

[22:59] WilliamBuell: Aye; you want to go to /etc/apache2/sites-enabled/
[22:59] MenZa: that does sound familiar
[22:59] WilliamBuell: Create a config file, i.e. blah.domain.conf
[23:00] WilliamBuell: I’ll give you one of my config entries so you have something to work with

<VirtualHost *:80>
DocumentRoot "/var/www/projects.lassehavelund"
ServerName projects.lassehavelund.com
<Directory "/var/www/projects.lassehavelund">
allow from all
Options +Indexes
</Directory>
</VirtualHost>

Ubuntu Apache Restart

November 27, 2009

sudo /etc/init.d/apache2 stop
sudo /etc/init.d/apache2 start
or
sudo /etc/init.d/apache2 restart