Alfresco, Is it the OpenSource counterpart to Windows Sharepoint ??

Here’s how to…..
Installing Alfresco on RHEL-5 System

1. Download Information:
Download the binary alfresco-1.2i-linux-community.bin from
http://sourceforge.net/project/showfiles.php?group_id=143373&package_id=157460&release_id=396245

2. Setup permissions:
Assign execute permission on the binary
# chmod u+x alfresco-1.2i-linux-community.bin

3. Installation:
Installation takes place in an interactive fashion thus unless something goes really bad, it won’t
take more than couple of minutes;
Start installing with the help of the following command
# ./alfresco-1.2i-linux-community.bin
(Make sure, your X-server is up and running)
The default installation directory would be under /opt/alfresco-1.2
Note: Alfresco installer comes bundled with Tomcat (Application Server), MySQL database and an
openoffice suite.

4. Gotchas!!! If you have multiple MySQL….
If you already have one MySQL DB running (on default 3306 port) then assign a different port of
MySQL while installing Alfresco.
Also, please move the mysql configuration file that you have under /etc/
to /mysql_install_directory/share/
And at the same time, copy the /opt/alfresco-1.2/mysql/support-files/ my-small.cnf with a name
my.cnf under /opt/alfresco-1.2/mysql/share/my.cnf
Eg.
# cp /opt/alfresco-1.2/mysql/support-files/ my-small.cnf /opt/alfresco-1.2/mysql/share/my.cnf

MySQL Port and Socket files;
Edit the file; /opt/alfresco-1.2/mysql/share/my.cnf and make the following changes as
port = 3307
socket = /opt/alfresco-1.2/mysql/data/mysql.sock
You might need to modify the file
/opt/alfresco-1.2/tomcat/shared/classes/alfresco/extension/custom-repository.properties
And change the port as;
db.url=jdbc:mysql://localhost:3307/${db.name}

5. Start alfresco:
Although after a successful installation, alfresco would start up automatically. You might also
want start and stop the same later on, the scripts for doing that can be found under;
/opt/alfresco-1.2/alf_start.sh
/opt/alfresco-1.2/alf_stop.sh

6. How to access:
Open a browser and type http://localhost:8080/alfresco; this should bring up the login page.
(Initial admin credentials are Username: admin, Password: admin)

(I did not try to install it with Tomcat server already installed, if some one tries that do share)

Installing ORACLE 9i on RHEL5

Note: I have installed it successfully on "Red Hat Enterprise Linux Server release 5 (Tikanga)" 32 bit. Please understand; it involves tweaking of Kernel parameters, so take care while you do that.

Steps:
1. Create oracle User AccountLogin as root and create te user oracle which belongs to dba group.$ su - root
# groupadd dba# useradd -g dba oracle
2. Setting System parameters:Edit the /etc/sysctl.conf with an editor like vi and add following lines:kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default=262144
net.core.wmem_default=262144
net.core.rmem_max=262144net.core.wmem_max=262144
Note: You need to execute "sysctl -p" to apply the above settings.
3. Setting Oracle EnviromentEdit the /home/oracle/.bash_profile file and add following lines:ORACLE_BASE=/opt/oracle
ORACLE_HOME=$ORACLE_BASE/920
ORACLE_SID=orcl
LD_LIBRARY_PATH=$ORACLE_HOME/lib
ORACLE_OEM_JAVARUNTIME=/opt/jre1.3.1_15
PATH=$PATH:$ORACLE_HOME/bin
export ORACLE_BASE ORACLE_HOME ORACLE_SID LD_LIBRARY_PATH ORACLE_OEM_JAVARUNTIME PATH
Save the .bash_profile and execute following commands to load the new environment:
# cd /home/oracle.
# .bash_profile
4. Create base directory for OracleLogin as root and create base directory for Oracle ($ORACLE_BASE).
$ su - root
# cd /opt
# mkdir oracle# chown oracle:dba oracle
5. Download and install required .rpm packagessome additional packages may be required for successful installation . To check whether required packages are installed on your operating system use following command:

rpm -q gcc glibc-headers glibc-kernheaders glibc-devel compat-libstdc++ cpp compat-gcc
6. Download the Java Runtime Enviroment (I used j2re-1_3_1_19-linux-i586.bin) from the Sun website. Login as root, give the file execute permission and then execute it. When the JRE is exracted move the same under the directory "/usr/local" directory.# chmod +x j2re-1_3_1_19-linux-i586.bin
# ./ j2re-1_3_1_19-linux-i586.bin
# mv jre1.3.1_19 /usr/local/
7. Download the Oracle 9i (9.2.0.4) software from Oracle website. Extract the files using following command:

gunzip ship_9204_linux_disk1.cpio.gz
gunzip ship_9204_linux_disk2.cpio.gz
gunzip ship_9204_linux_disk3.cpio.gz
cpio -idmv "<" ship_9204_linux_disk1.cpio
cpio -idmv "<" ship_9204_linux_disk2.cpio
cpio -idmv "< "ship_9204_linux_disk3.cpio
mv Disk* /home/oracle/
chown –R oracle:dba Disk*

When all archives were extracted you've got three directories Disk1, Disk2 and Disk3.
Edit the Disk1/install/linux/oraparam.ini and modify JRE_LOCATION variable and set path to our JRE installation from Step 6. JRE_LOCATION=/usr/local/jre1.3.1_19 4.

Start the Oracle software installation process. To start the installation process; execute the following commands:

$ cd Disk1
$ ./runInstaller

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Errors with solutions:
1. When network configuration assistant and database configuration assistant has failed during startup then do following steps:
Solution:
$ cd /opt/oracle/920
$ rm JRE $ ln -s /usr/local/jre1.3.1_19 JRE
$ su - root
# cd /opt/oracle/920/JRE/bin # ln -s java jre
# cd i386/native_threads
# ln -s java jre
2. If you encounter the following error:
ORACLE_HOME/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory Solution: Create a symbolic link
$ su - root
# ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2
3. If you encounter something like below at the very beginning of installation:
error while loading shared libraries: libstdc++-libc6.1-1.so.2: cannot open shared object file: No such file or directory
Solution:
$ su - root
# cd /usr/lib
# ln -s libstdc++-3-libc6.2-2-2.10.0.so libstdc++-libc6.1-1.so.2
Now, run the installer again:
$ ./runInstaller
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Note: If you encounter any more errors, please post it here