Resilience4j Session 1 Limit of number of requests to RESTAPI using rat...

Spring Cloud Session-7 Centralized Configuration

Spring Cloud Session-6 Microservices Distributed Tracing

Delete cookies using java script

You can use below java script to delete all the cookies.

function deletecookies()
{
var cookies = document.cookie.split(";");
for(var i=0; i < cookies.length; i++) {
var equals = cookies[i].indexOf("="),
name = equals > -1 ? cookies[i].substr(0, equals) : cookies[i];
document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
}

alert(document.cookie);
}

Creating Ad-Hoc Wireless network

Hi.

You dont need a wireless router in your home to create an wireless network. Following this video will help you to create an wireless network in your home.

I have a reliance wirless broadband at my home and there are no routers in market that supports usb mobile broadband modem.

I explored an option in ubuntu 10.10 that helped me to create a wireless network with out router. Now I am able to share internet across my wifi devices like ipod,mini and old laptop with out router.

My broad band service:
Reliance net connect.

Hope my video helps.
Balaji

Unable to download Apache Axis2 Tools

I tried to download “Service Archive Wizard - Eclipse Plug-in and Code Generator Wizard - Eclipse Plug-in” but I am unsuccessful . The references http://apache.securedservers.com//ws/axis2/tools/1_4/axis2-eclipse-codegen-wizard-1.4.zip , http://mirrors.kahuki.com/apache//ws/axis2/tools/1_4/axis2-eclipse-service-archiver-wizard-1.4.zip are not working

This is a know issue and will be solved in Axis2 1.5.3 refer : https://issues.apache.org/jira/browse/AXIS2-4593
Solution:
The best way is to get from archive site http://archive.apache.org/dist/ws/axis2/tools/1_4_1/

Hope this Helps
~Balaji

Installing oracle 10.0.2 on Red Hat Linux

Hi,
I tried to install Oracle 10.2 on Red Hat ES 4.0 and found the below article as very useful and easy one.
Before installation
• Have static ip to installation machine.
• Copy the installer to folder where user ‘oracle’ has execute permissions.
During Oracle installation
• RUN scripts as root user (Oracle will give you the hint, don’t ignore it)
• Unlock the account which you need.
Regards
Balaji

Source Post is from: http://www.oracle-base.com/articles/10g/OracleDB10gR2InstallationOnRedHatAS4.php

Oracle Database 10g Release 2 (10.2.0.1) Installation On Red Hat Enterprise Linux 4 (RHEL4)
In this article I'll describe the installation of Oracle Database 10g Release 2 (10.2.0.1) on Red Hat Enterprise Linux 4 (RHEL4). The article is based on a server installation with a minimum of 2G swap, secure Linux disabled and the following package groups installed:
• X Window System
• GNOME Desktop Environment
• Editors
• Graphical Internet
• Text-based Internet
• Server Configuration Tools
• Development Tools
• Administration Tools
• System Tools
Alternative installations may require more packages to be loaded, in addition to the ones listed below.
• Download Software
• Unpack Files
• Hosts File
• Set Kernel Parameters
• Setup
• Installation
• Post Installation
Download Software
Download the following software:
• Oracle Database 10g Release 2 (10.2.0.1) Software
Unpack Files
Unzip the files:
unzip 10201_database_linux32.zip
You should now have a single directory containing installation files. Depending on the age of the download this may either be named "db/Disk1" or "database".

Hosts File
The /etc/hosts file must contain a fully qualified name for the server:

Set Kernel Parameters
Add the following lines to the /etc/sysctl.conf file:
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
# semaphores: semmsl, semmns, semopm, semmni
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.rmem_max=262144
net.core.wmem_default=262144
net.core.wmem_max=262144
Run the following command to change the current kernel parameters:
/sbin/sysctl -p
Add the following lines to the /etc/security/limits.conf file:
* soft nproc 2047
* hard nproc 16384
* soft nofile 1024
* hard nofile 65536
Add the following line to the /etc/pam.d/login file, if it does not already exist:
session required pam_limits.so
Note by Kent Anderson: In the event that pam_limits.so cannot set privileged limit settings see Bug 115442.

Disable secure linux by editing the /etc/selinux/config file, making sure the SELINUX flag is set as follows:
SELINUX=disabled
Alternatively, this alteration can be done using the GUI tool (Applications > System Settings > Security Level). Click on the SELinux tab and disable the feature.

Setup
Install the following packages:
# From RedHat AS4 Disk 2
cd /media/cdrom/RedHat/RPMS
rpm -Uvh setarch-1*
rpm -Uvh compat-libstdc++-33-3*
rpm -Uvh make-3*
rpm -Uvh glibc-2*

# From RedHat AS4 Disk 3
cd /media/cdrom/RedHat/RPMS
rpm -Uvh openmotif-2*
rpm -Uvh compat-db-4*
rpm -Uvh libaio-0*
rpm -Uvh gcc-3*

# From RedHat AS4 Disk 4
cd /media/cdrom/RedHat/RPMS
rpm -Uvh compat-gcc-32-3*
rpm -Uvh compat-gcc-32-c++-3*
Create the new groups and users:
groupadd oinstall
groupadd dba
groupadd oper

useradd -g oinstall -G dba oracle
passwd oracle
Create the directories in which the Oracle software will be installed:
mkdir -p /u01/app/oracle/product/10.2.0/db_1
chown -R oracle.oinstall /u01
Login as root and issue the following command:
xhost +
Login as the oracle user and add the following lines at the end of the .bash_profile file:
# Oracle Settings
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR

ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1; export ORACLE_HOME
ORACLE_SID=TSH1; export ORACLE_SID
ORACLE_TERM=xterm; export ORACLE_TERM
PATH=/usr/sbin:$PATH; export PATH
PATH=$ORACLE_HOME/bin:$PATH; export PATH

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH
#LD_ASSUME_KERNEL=2.4.1; export LD_ASSUME_KERNEL

if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
Installation
Log into the oracle user. If you are using X emulation then set the DISPLAY environmental variable:
DISPLAY=:0.0; export DISPLAY
Start the Oracle Universal Installer (OUI) by issuing the following command in the database directory:
./runInstaller