摘要: 做為程序員，從感性角度講評(píng)一下7年里我使用過(guò)的9款機(jī)械鍵盤(pán)，確實(shí)更有特色，這種特殊的觸聽(tīng)體驗(yàn)非常美妙！  閱讀全文 搬了個(gè)家，想通過(guò)A410點(diǎn)播imac上下載的電影，通過(guò)系統(tǒng)自帶共享samba怎么都不成功。

想到是13年買(mǎi)的A410，應(yīng)該升級(jí)一下，可官網(wǎng)都沒(méi)了，最后搜索到這個(gè)16年的最新固件：
https://drivers.softpedia.com/get/DVD-BluRay-Media-Players/Cloud-Media/Cloud-Media-Popcorn-Hour-A-410-Media-Player-Firmware-050816061625POP425802.shtml
通過(guò)USB順利更新了一把。

再查看mac可以開(kāi)nfs，方法如下：

sudo vi /etc/exports
加入：

/ -sec=sys

 

/Users /Users/popeye /Users/popeye/movies -ro -mapall=popeye:staff -alldirs

檢查配置：

sudo nfsd checkexports

重啟：

sudo nfsd restart

這里要注意movies目錄是我重新建立的755權(quán)限，不要用系統(tǒng)原來(lái)的目錄，不然總是訪(fǎng)問(wèn)不了。

再到A410里網(wǎng)絡(luò)瀏覽里就能找到了。

http://mathias-kettner.de/checkmk_livestatus.html下載并解壓最新的包:
check_mk-1.2.1i3.tar.gz

再解壓其中的到livestatus目錄:
livestatus.tar.gz

進(jìn)入:livestatus/src

再:make clean livestatus.o

會(huì)發(fā)現(xiàn)一堆錯(cuò)誤,根據(jù)編譯NDO的選項(xiàng):
ndoutils-1.4b7/src:
make clean ndomod-3x.o gcc -fno-common -g -O2 -DHAVE_CONFIG_H -D BUILD_NAGIOS_3X -o ndomod-3x.o ndomod.c io.o utils.o -bundle -flat_namespace -undefined suppress -lz

在最后的編譯選項(xiàng)里添上:
-flat_namespace -undefined suppress -lz

就可以編譯出: livestatus.o



--------------------------
livecheck編不過(guò),報(bào)找不到n_short:
     摘要:

場(chǎng)景

想要用到的場(chǎng)景：用戶(hù)訪(fǎng)問(wèn)WEB服務(wù)，WEB訪(fǎng)問(wèn)非WEB服務(wù)1，服務(wù)1又再訪(fǎng)問(wèn)2、3，合并計(jì)算后，把數(shù)據(jù)返回給WEB及前端用戶(hù)。想讓訪(fǎng)問(wèn)鏈上的所有服務(wù)都能得到認(rèn)證和鑒權(quán)，認(rèn)為本次請(qǐng)求確實(shí)是來(lái)自用戶(hù)的。所以想到用CAS，讓用戶(hù)在一點(diǎn)登錄，所有服務(wù)都到此處認(rèn)證和鑒權(quán)。

  閱讀全文

Setting Up SSL on Tomcat in 5 minutes (https://localhost:8443)

This tutorial will walk you through how to configure SSL (https://localhost:8443 access) on Tomcat in 5 minutes.

For this tutorial you will need:

• Java SDK (used version 6 for this tutorial)
• Tomcat (used version 7 for this tutorial)

The set up consists in 3 basic steps:

1. Create a keystore file using Java
2. Configure Tomcat to use the keystore
3. Test it
4. (Bonus ) Configure your app to work with SSL (access through https://localhost:8443/yourApp)

1 – Creating a Keystore file using Java

Fisrt, open the terminal on your computer and type:

Windows:

cd %JAVA_HOME%/bin 

Linux or Mac OS:

cd $JAVA_HOME/bin 

The $JAVA_HOME on Mac is located on “/System/Library/Frameworks/JavaVM.framework/Versions/{your java version}/Home/”

You will change the current directory to the directory Java is installed on your computer. Inside the Java Home directory, cd to the bin folder. Inside the bin folder there is a file named keytool. This guy is responsible for generating the keystore file for us.

Next, type on the terminal:

keytool -genkey -alias tomcat -keyalg RSA 

When you type the command above, it will ask you some questions. First, it will ask you to create a password (My password is “password“):

loiane:bin loiane$ keytool -genkey -alias tomcat -keyalg RSA Enter keystore password:  password Re-enter new password: password What is your first and last name?   [Unknown]:  Loiane Groner What is the name of your organizational unit?   [Unknown]:  home What is the name of your organization?   [Unknown]:  home What is the name of your City or Locality?   [Unknown]:  Sao Paulo What is the name of your State or Province?   [Unknown]:  SP What is the two-letter country code for this unit?   [Unknown]:  BR Is CN=Loiane Groner, OU=home, O=home, L=Sao Paulo, ST=SP, C=BR correct?   [no]:  yes  Enter key password for 	(RETURN if same as keystore password):  password Re-enter new password: password 

It will create a .keystore file on your user home directory. On Windows, it will be on: C:\Documents and Settings\[username]; on Mac it will be on /Users/[username] and on Linux will be on /home/[username].

2 – Configuring Tomcat for using the keystore file – SSL config

Open your Tomcat installation directory and open the conf folder. Inside this folder, you will find the server.xml file. Open it.

Find the following declaration:

<!-- <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"     maxThreads="150" scheme="https" secure="true"     clientAuth="false" sslProtocol="TLS" /> --> 

Uncomment it and modify it to look like the following:

Connector SSLEnabled="true" acceptCount="100" clientAuth="false"     disableUploadTimeout="true" enableLookups="false" maxThreads="25"     port="8443" keystoreFile="/Users/loiane/.keystore" keystorePass="password"     protocol="org.apache.coyote.http11.Http11NioProtocol" scheme="https"     secure="true" sslProtocol="TLS" /> 

Note we add the keystoreFile, keystorePass and changed the protocol declarations.

3 – Let’s test it!

Start tomcat service and try to access https://localhost:8443. You will see Tomcat’s local home page.

Note if you try to access the default 8080 port it will be working too: http://localhost:8080

4 – BONUS - Configuring your app to work with SSL (access through https://localhost:8443/yourApp)

To force your web application to work with SSL, you simply need to add the following code to your web.xml file (before web-app tag ends):

<security-constraint> 	<web-resource-collection> 		<web-resource-name>securedapp</web-resource-name> 		<url-pattern>/*</url-pattern> 	</web-resource-collection> 	<user-data-constraint> 		<transport-guarantee>CONFIDENTIAL</transport-guarantee> 	</user-data-constraint> </security-constraint> 

The url pattern is set to /* so any page/resource from your application is secure (it can be only accessed with https). The transport-guarantee tag is set to CONFIDENTIAL to make sure your app will work on SSL.

If you want to turn off the SSL, you don’t need to delete the code above from web.xml, simply changeCONFIDENTIAL to NONE.

Reference: http://tomcat.apache.org/tomcat-7.0-doc/ssl-howto.html (this tutorial is a little confusing, that is why I decided to write another one my own).

Happy Coding!

EXTJS和D3都很強(qiáng)大,不解釋了,把D3繪的圖直接放到一個(gè)EXT的TAB里,直接上圖上代碼:


代碼中的D3例子來(lái)自:
到這里下載最新PKG:
     摘要: 非常淺顯易懂的PERL編碼說(shuō)明.
一目了然PERL編碼,注意是轉(zhuǎn)的  閱讀全文

下面以MAC為例,如果是LINUX需要把DYLD發(fā)為L(zhǎng)D

把下面代碼加到代碼開(kāi)頭,它就可以自啟動(dòng)了,不需要再EXPORT或者-I

BEGIN {

        #需要加到LOADPATH的路徑

my $need = '/usr/local/nagios/pkg/ebase/';

push @INC, $need;

if ( $^O !~ /MSWin32/ ) {

my $ld = $ENV{DYLD_LIBRARY_PATH};

if ( !$ld ) {

$ENV{DYLD_LIBRARY_PATH} = $need;

}

elsif ( $ld !~ m#(^|:)\Q$need\E(:|$)# ) {

$ENV{DYLD_LIBRARY_PATH} .= ':' . $need;

}

else {

$need = "";

}

if ($need) {

exec 'env', $^X, $0, @ARGV;

}

}

}

@import url(http://www.aygfsteel.com/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);

限制用戶(hù)在自己目錄下載文件:

建立nagiosdnld

指向軟鏈接:/usr/local/nagios/dnld -> /Users/nagiosdnld/dnld

編輯/etc/sshd_config

Match User nagiosdnld

        X11Forwarding no

        AllowTcpForwarding no

        ForceCommand internal-sftp

        ChrootDirectory /Users/nagiosdnld

重啟下服務(wù):

launchctl stop org.openbsd.ssh-agent

launchctl start org.openbsd.ssh-agent

@import url(http://www.aygfsteel.com/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);      摘要: iostat 輸出解析


1. /proc/partitions

對(duì)于kernel 2.4, iostat 的數(shù)據(jù)的主要來(lái)源是 /proc/partitions，而對(duì)于kernel 2.6, 數(shù)據(jù)主要來(lái)自/proc/diskstats或者/sys/block/[block-device-name]/stat。

先看看 /proc/partitions 中有些什么。

# cat /proc/partitions
major minor #blocks name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq
  閱讀全文 @import url(http://www.aygfsteel.com/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css); @import url(http://www.aygfsteel.com/CuteSoft_Client/CuteEditor/Load.ashx?type=style&file=SyntaxHighlighter.css);@import url(/css/cuteeditor.css);