Tripwire Agent Troubeshooting Steps

1.) Make Sure the Agent Interface listening to correct Ethernet interface
tw.rpc.interfaceAddr=172.16.36.22
java.rmi.server.hostname=172.16.36.22

CentOS bind config

Server Name = dns.broexperts.com
Server IP       = 192.168.0.211/24
Step 1. Installation of required packages.
We use yum to install BIND packages.

# yum -y install bind bind-libs bind-utils

Commands – CentOS Frequent used commands

Test Disk Speed

hdparm –tT /dev/sda

Write Speed - dd if=/dev/zero of=test bs=1048576 count=2048

Read Speed – dd if=test of=/dev/null bs=1048576

Find WWPN

cat /sys/class/scsi_host/host1/device/fc_host:host1/port_name

Hardware Detection

lshw / lspci

CloudStack Troubleshooting

 

You should have one Java process running CloudStack on the Management Server. This is the Management Server process.
After everything is configured CloudStack will perform its initialization. This can take 30 minutes or more depending on the speed of your network. During this initialization process several things happen:

Imperva Commands

SAN Installation

• systool -a -v -c fc_host

ECU

Amazon Free Linux Machine Optimization

Imperva Commands

SAN Installation

systool -a -v -c fc_host

!less

rmmod lpfc

alias scsi_hostadapter lpfc options scsi_mod max_scsi_luns=256

update-pcidds && update /etc/init.d/multipath status

multipath -ll

vi /etc/multipath.conf

Reset admin password

https://eu1.salesforce.com/articles/Procedure/Password--Resetting-the-password-for-user-admin-during-an-upgrade

Openstack - Cloud deployment Examples

Cloudstack – Availability and Scalability

Cloudstack Scalability

Cloudstack API

CloudStack UI and API Customization and Integration

CloudStack: Network Configuration網絡配置

Cloudstack - Scalable Networking

CentOS 6.3 - NFS Server And Client On CentOS 6.3

CloudStack: Basic Facts and Resources

Hardware Requirement

	Description	Minimum Requirements
Management Server	Hosts the Cloud.com CloudStack Management Server software.	64-bit x86 CPU 2 GB of memory 80 GB of local disk At least 1 NIC RHEL/CentOS 5.4+ 64-bit or RHEL6 64-bit Statically allocated IP address Fully qualified domain name as returned by the hostname command
Host	Provides all the CPU and memory resource for allocated guest virtual machines.	64-bit x86 CPU Hardware virtualization support required 4 GB of memory 30 GB of local disk At least 1 NIC Statically allocated IP Address Citrix XenServer 5.6, RHEL/CentOS 5.6 (64-bit), Fedora 14 (64-bit), or RHEL6 (64-bit)
Secondary Storage	Provides storage for templates and snapshots	NFS storage appliance or Linux NFS server 100GB minimum capacity
Database Node		May be co-located with the Management Server Otherwise requirements identical to Management Server

CloudStack – Tips and Tricks

 

CloudStack ScreenShot – Management Setup Wizard

Compare Robocopy, iFolder, PowerFolder, Deltacopy and Syncrify

Comparison between Openstack and CloudStack

BAIDU SEO Tips and Trick

SFTP Comparison - Openssh versus Serv-U SFTP