寫電子書,長度永遠沒有限制… :-)

在規劃寫實體書時,會先決定兩件事,一是大綱,一是頁數。其中,頁數是最令人頭痛的因素。頁數即出版社發行成本之一;頁數多,書厚一點,成本提高,書價相對就得訂高,否則會虧錢。因此,為了讓整本書的頁數釘在一定範圍內,勢必要割愛某些內容,特別是範例程式碼的長度和數量。

既然,「Linux Shell 程式設計與管理實務」的電子書已上架了,除了原有書中的範例程式之外,現在開始,會不定期的增加該電子書的實務範例。第一步是增加第七章進階變數「變數擴展」的練習範例。接著是其他各章的練習題目。

本書 2.0.1.9 版,電子書的長度已有 984 頁,要破千頁,相信很快了….

ISC.org 被入侵!

專門提供 DNS BIND/DHCP 套件的 ISC.org 日前被人入侵了,而且被植入了惡意軟體。據 ISC 稱,禍首是該站使用的 WordPress 的漏洞所造成的,至於 ftp.isc.org, kb.isc.org 則都不受影響。

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ISC.org 的公告原文如下:

The ISC.org web site is down for maintenance.

We believe the web site may have become infected with malware. Please scan any machine that has accessed this site recently for malware.

This is a WordPress issue, ftp.isc.org, kb.isc.org and our other network resources are unaffected. We have not had any reports of any client machines that have been infected from our website. If you believe you have caught a virus from our web site, please let us know, by email to security-officer@isc.org.

In the meantime, all the things you come to our www site for are still accessible to you.

This is a great time to take a look at the Internet Archive, who is making an on-going record of the Internet, including our web site.

https://web.archive.org/web/20141007025209/https://www.isc.org/

HOW TO GET SOFTWARE

Until this site is restored, you can download your ISC software from our ftp site.

The current versions of BIND are found here: ftp://ftp.isc.org/isc/bind9/cur/

ISC DHCP 4.3.1 is here: ftp://ftp.isc.org/isc/dhcp/4.3.1/

Or, type ftp.isc.org into your browser and you will see an html page. Select the “isc” folder and double click to open it.

Within the “isc” folder you will see folders for “bind9” and “dhcp” and other software we host on www.isc.org.

Instructions on how to check your download files, to ensure their integrity, are here:

https://kb.isc.org/article/AA-01225/46/Verifying-the-Integrity-of-ISC-Downloads-using-PGP-GPG.html

Our pgp key is available on public key servers, such as MIT’s, https://pgp.mit.edu

TECHNICAL REFERENCES

Much of the information posted on the www.isc.org web site is actually stored in a Knowledgebase, which is available via direct http at https://kb.isc.org/

BIND security vulnerability information is easily accessed at: https://kb.isc.org/article/AA-00913/0/BIND-9-Security-Vulnerability-Matrix.html

How-to articles and FAQs on BIND are at https://kb.isc.org/category/77/0/10/Software-Products/BIND9/

MAILING LIST ACCESS

To view all ISC mailing lists, read archives and subscribe: https://lists.isc.org/mailman/listinfo

Bind issues: email to bind-users@lists.isc.org

DHCP issues: email to dhcp-users@lists.isc.org

HOW TO REACH ISC

Security issues: email to security-officer@isc.org

Information, sales, general inquiries: email to info@isc.org

Web site issues: webmaster@isc.org

To report a bug in our software, mail to:

Bind-bugs@isc.org

Dhcp-bugs@isc.org

Main telephone number: 650-423-1350

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詳情請見:http://isc.org/

是不是有句成語叫「柯政猛於虎」?

我很少談論政治人物,今天要談兩則:

1. 小時候,讀國語課本,學到一句成語,和新任台北市長的作風有雙關意:

延宕多年的忠孝西路專用道,新任市長竟然兩天就把它搞定—拆了!

真是「柯政猛於虎」! 😉

不過,這種行事風格,對台北市民來說,是福是禍,仍在未定之天,咱們後續看下去。 ;-)

反正,台北市的忠孝西路專用道拆不拆,對一向住在鄉下的我來說,其實是一點作用也沒有。說到底,「干我 P 事」?!

2. 本人應該去做半仙,占卜很準的喔!

請看在下 12/10 的預言:

討國賊得題墓

http://twitter.ols3.net/?p=428

時至昨日,墓已題好了。

Linux Shell 程式設計與管理實務新增一小單元:ANSI-C 引號字元

這便是電子書的優勢,隨時可以更新,不必重新排版付印,機動性高。

2014/12/26,

2.0.1.9 版,新增一小單元,談 ANSI-C 引號字元的格式、意義和妙用。目前已上傳更新檔至 Google Play 了。 🙂

Google Play 的效率很高,大約只要半個小時~40分鐘的審查,就可更新電子書的版本。

目前 2.0.1.9 版已正式上架囉! 🙂

ansi-c