Saturday, October 19, 2019

Quickly Deploy Zabbix in CentOS7

Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics. This post is going to install zabbix4.0 into a brand new Centos7.x system environment, including default installation of mariab5.5, php5.4, apache2.4 as well. 
All configurations are almost default, the ultimate goal is to  install the zabbix system in a fastest way.

Friday, October 18, 2019

Some Popular Linux VPS Bench Scripts

Cloud service providers often define host tiers by the allocated resources, but the differences in the underlying hardware, architecture and performance tuning can result in varying capabilities even between similar configurations. The easiest way to measure the real differences between servers is to run a set of tests, i.e. a benchmark, to create simple to read values for comparisons.


    UnixBench is the original BYTE UNIX benchmark suite, updated and revised by many people over the years.The purpose of UnixBench is to provide a basic indicator of the performance of a Unix-like system. Hence, multiple tests are used to test various aspects of the system’s performance. These test results are then compared to the scores from a baseline system to produce an index value, which is generally easier to handle than the raw scores. The entire set of index values is then combined to make an overall index for the system.
    Some very simple graphics tests are included to measure the 2D and 3D graphics performance of the system.

    UnixBench Benchmark repository is at

    Symantec SEPM Configuration and Client Deployment

    Here are some of my notes for configuration SEPM and Client.

    Import Client Packages

    Thursday, October 17, 2019

    Troubleshooting WordPress Installation and Configuration Issue

    I have been hosting my blog in multiple site, AWS, GCP, IBM Openshift , etc. During migration between those sites, there were multiple issues happened and I spent some time to resolve them.  This post is to record those typical issue bothered me and hope it can save you some time if you have same problem.

    Also Wordpress plug-in "All-in-One WP Migration" helped a lot during this migration or upgrade process. Whole blog was exported to a 50M to120M package depending on plug-in numbers.

    Here are list of those troubles:
    1. PHP is out of memory.
    2. WordPress Site and Home URL Change
    3. Change Upload file limitation 2M
    4. Wordpress PermaLinks Issue
    5. Prompted for FTP details when update plugins
    6. Plugin JetPack Error Updating Settings – FetchNetworkError
    7. Disable WordPress Plugin from PhpMyAdmin

    Wednesday, October 16, 2019

    CyberArk Failover and Failback Process

    PAM Solution High Availability Design Sample

    DR Failover

    CyberArk Configuration Notes

    PAM Solution High Availability Design Sample
    CyberArk is an info security company mainly dedicated to privileged account security. The CyberArk Privileged Account Security solution comprises features that secure, monitor and manages confidential accounts.
    The major components used widely are following:

    • Enterprise Password Vault
    • Central Policy Manager (CPM)
    • Password Vault Web Access (PVWA)
    • Privileged Session Manager (PSM)

    Saturday, October 12, 2019

    Create a Free Tier Windows/Linux Virtual Machine in Azure

    Azure free tier provides following free services for 12 months after one month for your free $200 credit:

    1. 750 hours B1S VM Windows Virtual machines
    2. 750 hours B1S VM Linux Virtual machines
    3. 64GB x 1 Storage - 2 P6 SDDs
    4. 5 GB File Storage
    5. 250 GB SQL DB
    6. 15 GB Bandwidth (Data Transfer)
    7. etc
    Basically, you can run two virtual machines (one for windows , one for linux) free for a year.

    Monday, September 30, 2019

    IBM Guardium Notes: Basic Configuration Notes (License, NTP, SMTP, Data Related, Backup, Schedule, LDAP, Syslog)

    This post is a summary for those basic IBM Guardium configuration. The IBM Guardium products provide a simple, robust solution for preventing data leaks from databases and files, helping to ensure the integrity of information in the data center and automating compliance controls.

    These are the key functional areas of Guardium's database security solution:
    • Vulnerability assessment. This includes not just discovering known vulnerabilities in database products, but also providing complete visibility into complex database infrastructures, detecting misconfigurations, and assessing and mitigating these risks.
    • Data discovery and classification. Although classification alone does not provide any protection, it serves as a crucial first step toward defining proper security policies for different data depending on its criticality and compliance requirements.