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Monday 2018 February 26

I have moved all my contents to new site and will no longer update posts here.

I have moved all my contents to new site and will no longer update posts here.

Monday 2017 April 17

Secure Web Connection with Lighttpd + Let’s Encrypt = A+ score on ssllabs (HTTPS + HSTS)

Lighttpd + Let’s Encrypt + This HOWTO = A+ score on ssllabs (HTTPS + HSTS)
My A+ report:
ssllabs A+ rating for

Continue reading...

Sunday 2017 April 16

Writing Post on Drupal with Markdown

Drupal is great but could be even better with Markdown.
This is the HOWTO you're looking for.
This article is written in markdown.

Env: Drupal 7

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Thursday 2017 April 13

D-Link AP/Router 路由器、分享器 - 設定區網電腦使用固定 IP

「新增 DHCP 保留」時「無效的主機名稱」錯誤 解決方法

以 DIR-865L 為例

前提:DHCP 功能必須開啟

設定 -> 網路設定 -> 新增 DHCP 保留
從「電腦名稱」下拉選單中選擇電腦。並按旁邊的 <<< 按鈕以複製電腦資訊。
如果沒有看到,請將要被設定的那台電腦斷線重連(強至跟 DHCP 伺服器重新取得 IP),然後重新整理頁面,就會看到了。
修改輸入框中的「IP 位址」成你希望未來那台電腦固定使用的 IP。
按下 新增/更新 後記得要再按下頁面最下方的 儲存設定


如果跳出「無效的主機名稱」錯誤,解決方法很簡單,換成用 Firefox,如果有封鎖 JavaScript 的話請允許執行,就能立刻解決!XDDD

在 Docker 中使用 Linux 版微軟 Microsoft SQL Server

最近向我尋求顧問諮詢的組織單位中,其中一個再也受不了微軟的天價授權費勒索,打算用 Linux (Ubuntu) 替換掉所有 Windows Server。
用 PHP、Java 以及其他跨平台語言撰寫的服務要轉移很容易。但是其中一些系統使用 MicroSoft SQL Server 作為資料庫。
治本的方法是轉移到 MySQL、MariaDB 或其他 OpenSource 資料庫系統,但那需要時間來處理所有 schema 以及 query 的轉換。
另一個方法是在 Docker 中使用 Linux 版微軟 Microsoft SQL Server 作為暫時性的過渡時期解法。

Continue reading...

Running Microsoft SQL Server on Linux in Docker

One of the organizations that recently consulted me for advice, no longer willing to be extortion by Microsoft's high licensing fees, and plans to replace all Windows Server with Linux (Ubuntu).
No big deal for services written in PHP, Java, and other cross platform languages. But some of the systems use MicroSoft SQL Server as their Database.
The permanent cure is to migrate to MySQL, MariaDB, or other OpenSource Databases. But it takes time to translate all schema and queries.
The other solution is to use Microsoft SQL Server on Linux in Docker as a temporary workaround.

Continue reading...

Saturday 2016 November 12

[HOWTO] Single-Host OpenStack installation with conjure-up, juju, LXD, and ZFS on Ubuntu 16.04

I 've had enough of VMware and it's service. I need something better for my DataCenter.
OpenStack seems to have the functions I need, and got a big community supporting it.
Before adopting, some pilot tests are required.
I've setup a Single-Host OpenStack (everything on one server), use Nova LXD, and ZFS.

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[HOWTO] Update all firmware and drivers at once on Dell server (with bootable CD / USB)

I run Ubuntu Linux on my Dell server, so those SUU doesn't work.
The easiest way to update all it's firmwares is, use a bootable CD to do the thing for you, automatically.

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Tuesday 2016 March 29

教學: 用 Ubuntu Linux (64bit) 環境使用 Juniper SSL VPN (免裝 32bit Java) (zh_TW)

文章內容已於新站更新,請至 閱讀最新內容

Juniper SSL VPN 常被用在各種地方,包括台灣各國立大學也都有由 TWAREN 所提供的服務。
因為它對於 64bit Linux 的支援問題,要在 Ubuntu (Linux) 64bit 上使用並不容易
如果你不希望只為了用它而得多裝一套肥大的 32bit Java,這篇就是你要的教學文

If you want English HOWTO, check English version HERE

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HOWTO: Ubuntu Linux (64bit) Client connect to Juniper SSL VPN, without 32bit Java (en)

Juniper SSL VPN is widely been used in many places, including almost every National University in Taiwan, provided by TWAREN.
Using Ubuntu (Linux) 64bit as client to connect to it is not painless, but Pain-in-the-Ass.
If you don't want to install another HUGE 32bit Java just for it, this is the right HOWTO Guide for you.

If you want Chinese HOWTO, check 中文版教學

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Monday 2016 March 21

HOWTO - Set Tag color on

Taiga is a nice tool for project management for Scrum / Agile development.
But the Tag Color setting on UI is missing so there's no way to change or modify tag color after creating.
We have to set it manually via REST interface.
And this is HOW.

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Saturday 2015 December 26

在 Ubuntu Linux + Firefox 上使用「台新銀行網路 ATM」

我已經過了十年沒有 M$ Windows 的生活了,近年使用玉山銀行 WebATM 都很順暢
我同時也有用其他幾家的帳戶,包括有支援 Linux 但是做得很應付台新銀行

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Monday 2014 April 21

HOWTO: Ubuntu 14.04 安裝 嘸蝦米輸入法

很多人習慣用嘸蝦米輸入法,順手寫了安裝介紹,希望能有幫助。(iBus 沒試成功,請用 gcin)

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Thursday 2011 June 23

HOWTO - 在 Ubuntu/Linux 中關閉 IPv6 支援。

同文分享於 Ubuntu-TW 論壇

因為 IPv4 的耗盡,現在全世界都在推行 IPv6。大家可能都知道,Ubuntu 預設支援 IPv6。
這是很好的事情,但有時候你在所處得環境中根本無法使用 IPv6。

比如說,如果你在某個服務的設定檔中設定了 listen_ip= 並且希望這個服務能自動跑在你所有的網路介面,你可能得不到你想要的。

這是因為,如果這個服務同時支援了 IPv4 和 IPv6 而且沒做好防呆,你的系統會預設自動讓他聽 IPv6 :::80。這就是為什麼即使你的網路是通的,你還是沒法連接到你的服務上。
(當然,也可以增加 Firefox 的查詢速度。)
請注意,只有在你的網路環境不支援 IPv6 時,才推薦從系統上關閉。否則,請支持 IPv6 普及化的推動。

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Friday 2011 April 15

HOWTO - Disable IPv6 support in Ubuntu/Linux.

As many people know, Ubuntu supports IPv6 by default.
It's nice but sometimes you don't have chance to use IPv6 in your network environment.
And maybe, sometimes it brings few more complexity for your system administration tasks.

For example, if you set listen_ip= in a services daemon's config file and hope it can listen to all of the IPv4 IPs of your network interfaces, you might not get what you want.

This is because, if the daemon supports both IPv4 and IPv6, it will listen to IPv6 :::80 by default. That's why you cannot connect to your service even the network link is up.

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Thursday 2011 March 17

HOWTO: PPTP: Ubuntu Client connect to Windows VPN Server

The company I work for just starting to use Windows ISA Server (or whatever) in some places.
And also, they use the Windows server to be a VPN server.
As Micro$oft doesn't officially support OpenVPN, and we don't consider IPsec to be used for end users, they decide to use the fu*king insecure PPTP, which I would definitely never wanna try.
That's where my Nightmare starts.

Continue reading...

Monday 2010 September 13

HOWTO: perlbrew + cpanm + perl

perlbrew 的好處就是可以使用一般使用者的權限來安裝 perl 跟其模組,不用擔心會破壞到原本系統的穩定性。

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Saturday 2010 July 10

Web Log Visualization with logstalgia

$ logstalgia --output-ppm-stream - -s 10 -f --start-position 0.01 --stop-position 0.2 severity_v2_access.log.filter-118.160.72  --output-framerate 30 |  ffmpeg -y -b 256K -r 30 -f image2pipe -vcodec ppm -i - -vcodec libx264 coscup2010-register_0.01-0.2_speed10_45min-filter_118.160.72.mp4

Saturday 2009 November 28


It's ±€231 for my price.

Thursday 2009 October 29 reaches 1M hits per day, again.

[email protected] 正體中文站 討論區+wiki 又重回每日點擊百萬數了。
伺服器不穩定了好一陣子,現在終於重回當年盛況,每日點擊數超過一百萬! XD

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