Jan
31
2009
If you like to know how to use SVN from Eclipse refer to the following IBM developer link. This article provide details on how to install subclipse ( SVN plug-in for eclipse) and create a new project. Also touches on deleting as well. This article assumes that you access your source repository over http. But you can also access your repository over svn+ssh as well. So while you follow the article, replace http://… with the following if you have to access your repository over SVN+SSH:
svn+ssh://username@host_ip_address/path/to/repository
Let us assume that:
username = ben, host_ip_address=192.168.1.2, repository path = /home/ben/source
then you would enter
svn+ssh://ben@192.168.1.2/home/ben/source
See the image below that show where to replace http:// with svn+shh://
Jan
18
2009
You need htpasswd executable for enabling password protection in Nginx webserver. Mod_Auth is a core module of Nginx webserver. But it does not come with a htpasswd equivalent tool. Normally people use the htpasswd provided by Apache webserver. If you have not installed apache then chances are that you dont have these tool. I did not have this tool and my search on the internet did not yeild this executable.
So I am sharing the htpasswd executable that I built on a Debian 4.1 (X86) machine. If you are unable to execute this on your platform then you need to build from the source. You can download Apache 2.2 source from this link, from which I built the htpasswd executable.
To build htpasswd executable.
Download and untar the Apache source.
./configure
make
cd httpd2.2.11/support ( htpasswd is in this directory )
Jan
11
2009
Samba is a very powerful software that can act as File-server & print-server using SMB/CIFS protocol. Here I describe a Home environment and provide a appropriate Samba server configuration.
Assumptions
Samba is installed correctly and it execute with out issues.
Samba configuration file is located in /etc/samba
Samba Configuration file name is smb.conf ( This is the default )
Samba is installed on Debian Linux distribution. ( This should not matter much ) |
Description of the Mr Lingsiva’s Home Environment
- A Linux server with huge disk-space
- A Mac desktop system
- A Windows XP desktop
- Office Laptop that needs to work in both Office and Home environment
- A DSL Internet from ISP. DSL model Cum wireless router acts as the firewall for Home Network
- All these computers form a private network behind the firewall and Wifi security is enabled for wireless connections.
|
Samba File Server Requirements
- A common folder accessible to all home computers and office laptop while operating under home profile.
- A private folder for each of the family members
- The common folder should be available only for the trusted systems. That is,
the systems I identify as trusted. For example, if one of my friend
visits my house and plugs his computer in my network, the common folder
should not be accessible from his computer.
- Private folder of User A should not be accessible by User B
- Samba service is only available with in the private network and must not be accessible from the Internet.
|
Links to Refer
http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/passdb.html
http://oreilly.com/catalog/samba/chapter/book/index.html |
smb.conf File That Satisfies The Above Requirements
[global]
netbios name = squad
server string = Siva’s File Server
invalid users = backup,bin,daemon,games,gnats,irc,list,lp,mail,man,news,proxy,root,sshd,sync,
sys,uucp
workgroup = HOME
os level = 34
valid users = @users
security=user
[common]
browseable = yes
comment = Common folder for family members
path = /path/to/directory
writeable = yes
force group = users
create mode = 770
directory mode = 770
[homes]
browseable = no
read only = no |
Dec
26
2008
How often you wondered that a definition for a word from different dictionaries would have been better. Stop wondering. OneLook is for you. It is more than ”words” search engine. It indexes words from various dictionaries and provides a comprehensive information about the word. For instance, it gives a quick definition, pronunciation audio clip and usage of the word in phrases. Please see the screenshot for the word “pleasant”
You can also use this tool to find a pattern consisting of letters and wild-cards * and ?, to find the words matching that pattern. This is really cool. For example, say, you want to find all the 4 letter words that start with ’sh’ and ends with ‘t’ , then you would enter “sh?t”. This would produce the following result
1. sh!t
2. shat
3. shbt
4. shdt
5. shet
6. shft
7. shht
8. shit
9. shlt
10. shmt
11. shnt
12. shot
13. shut
14. shwt
15. shyt
Also there is sister site of this called
RhymeZone. Check this out as well.
Dec
26
2008
I wanted to install Ubuntu 8.04 on a system that did not have a CDROM drive and floppy. So I had to install from a USB stick. Installation from USB stick is not straight forward either. Hence, I thought of sharing how I installed the OS. Please follow the steps below:
- Get a USB thumdrive with atleast 1 GB freespace.
- Format the drive using Windos Format tool
- Download syslinux . Syslinux utility is avilable for both Linux and WIndows. I downloaded Windows version. Follow this link to learn more about SysLinux. Syslinux is used to install the bootloader on the USB Drive
- Insert the thumbdrive into your Windows machine and open a command window
- Execute syslinux.exe -m -a -d e: ( Here e: is assumed to be the Drive letter for the USB thumbdrive. ). After this command, you should see syslinux.cfg in the root dir of the thumbdrive.
- Download Ubuntu 8.04 ISO image to your local drive.
- Using “Winrar” extract the ISO image on to your harddisk. This is needed to copy some files into the USB thumbdrive.
- Download initrd.gz and vmlinuz files for Ubuntu 8.04 ( Hardy ) from this link. These files are required for installing from USB Thumbdrive. ( NOTE: If you want to install a different version of OS, Say 8.10, then you need to download these two files that was built for that version of OS. For example, for 8.10, these two files for Ubuntu 8.10 are here)
- Copy the following into USB thumdrive root folder
- copy the contents of isolinux into the root dir of USB thumbdrive. (To be unambigious: isolinux is a folder you get when you extract the 8.04 iso image )
- create a directory named “install” and copy “initrd.gz” and “vmlinuz” into this folder.
- copy the whole 8.04 iso image into the USB thumdrive. ( To be unambiguous: You need to copy the whole ISO image and NOT the extracted files )
- Rename isolinux.cfg to syslinux.cfg
- Plug in your USB thumbdrive
- Power your system (Make sure that you have set your Bios to boot from USB-HDD )
- Ubuntu install screen will be presented and follow the instructions to complete Ubuntu 8.04 Installation
Mar
14
2008
Good Tools that aids in network application developmentThe following are the tools that i use to debug network applications.
- netcat. Click the link to download the windows version of the tool
- NemesisYou can download this tools from here
