paulooi.com » Technology

Melaka Malacca

Paul Ooi — Thu, 18 Sep 2008 13:40:49 +0000

MyIX – Malaysia Internet Exchange Center

Paul Ooi — Fri, 15 Dec 2006 02:41:03 +0000

Today, MyIX officially launch by Y.B Dato’ Seri Dr. Lim Keng Yaik, Minister of Energy, Water and Telecommunication. There are 3 nodes connected MyIX which located at AIMS, NCC and TPM. Pictures of one of the node located in AIMS(Applied Information Management Services).

AIMS NOC Entrance

AIMS NOC Monitoring System

AIMS NOC Network Operation Center

MyIX node in AIMS Data Center

MyIX Info:

MyIX Nodes: AIMS, Fiberail NCC, TPM Jaring

MyIX Founding Members: TM, Jaring, AIMS

MyIX Peering Members: Maxis, Time, Digi, Nasioncom, Heitech Padu, MyKris, Airzed, Extreme Broadband, VDSL, EBTech, Freenet, Bizsurf, Paneagle and CNX

Server Gotcha by Hacker

Paul Ooi — Thu, 29 Jun 2006 01:21:53 +0000

This morning when I access to www.paulooi.com. I saw the picture shown above, I access to all the website I hosted, also the same page coming out. Except Mel’s blog. Then I only found out some very high skills hacker inject index.html into every hosted folder. The files “index.html” started to inject since this morning 7am.

Am still checking how was the file got injected into all the folders. Thanks Mr Hacker.

Beside that, Hey! I am on zone-h list and I think Mr Forever is from 85.96.125.3

The Caused
Some of the customer didn’t patch the Mambo/Joomlah to latest version. Please do so please please please, patch your Mambo/Joomlah/Wordpress. If you require me to patch for you, let me know!

Exim, refused: too many connections

Paul Ooi — Wed, 21 Jun 2006 03:02:18 +0000

One of our mailserver having problem last week. It’s caused by the massive connections connected into the server sending out newsletter(large database unstoppable loops) from one host.

2006-06-15 08:50:06 Connection from [201.xx.xx.xx] refused: too many connections
2006-06-15 08:50:20 Connection from [201.xx.xx.xx] refused: too many connections
2006-06-15 08:50:24 Connection from [201.xx.xx.xx] refused: too many connections
2006-06-15 08:50:28 Connection from [201.xx.xx.xx] refused: too many connections
2006-06-15 08:50:32 Connection from [201.xx.xx.xx] refused: too many connections

Exim default allow maximum 20 connections from a host. You can increase the connection in the main configuration file by adding in this line;

smtp_accept_max = 50

For more information, visit Exim’s documentation site.

Pure-ftpd: account disabled

Paul Ooi — Mon, 19 Dec 2005 09:08:36 +0000

I have configured pure-ftpd using FreeBSD ports(usually compiled from source). After everything have setup, postgresql, db, table, users and etc, it seem like cannot connect into the server with the below message…

Dec 19 16:34:14 server pure-ftpd: (?@60.48.150.26) [WARNING] Can’t login as [takizo]: account disabled

After few hours of checking, I found the cause of the problem is the UID and GID I set was low than 1000, if you have the similar problem, try to set a higer UID and GID. Better in the range of 5000(my own opinion).

All the best