missing idea http://blog.donews.com/jackqq read the fscking manual Fri, 02 Sep 2011 05:41:48 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Setting up net-mgmt/cacti http://blog.donews.com/jackqq/archive/2011/09/02/511.aspx http://blog.donews.com/jackqq/archive/2011/09/02/511.aspx#comments Fri, 02 Sep 2011 05:41:48 +0000 jackqq http://jackqq.wordpress.com/?p=511 Cacti is a network device monitor and graphing tool utilizing SNMP and RRDtool.

Procedures to set up:

  1. install ports: net-mgmt/cacti, net-mgmt/cacti-spine
  2. install fastcgi for apache: www/mod_fcgid
  3. follow instructions from ‘pkg_info -Dx cacti’
  4. configure apache22, see cheatsheet:apache php mod_fcgid
  5. enable mysql and apache22 in /etc/rc.conf
    6. mysql_enable=yes
apache22_enable=yes
apache22_profiles="01"
apache22_01_configfile="/usr/local/etc/apache22/httpd.01.conf"
  6. start services

Procedures to kick start:

  1. (Navigation Sidebar) Devices, Add. Host Template = Generic SNMP (for 3Com switches).
  2. (Device page) Create Graphs for this Host. Graph Types = All (or SNMP). Multi-select items to draw graphs for.
  3. (Navigation Sidebar) Graph Trees, Add. Tree Item Type = Host.
  4. wait for 5 mins, or php poller.php --force. Watch …/cacti/log/cacti.log.
  5. (Top) graphs.

Voila!

Custom settings:

  • Graph Template, Traffic:
    • Auto Scale: no
    • Per-Graph Auto Scale: yes
    • Rigid Boundaries: no
    • Upper Limit: 10000000
  • Settings, Poller:
    • Poller Type: spine
    • Max Threads Per Process: 4
  • Settings, Visual
    • Font Size: Axis = 7, Unit = 8, Legend = 8, Title = 10
    • Font Name: Bitstream Vera Sans Normal (or Mono)
]]> http://blog.donews.com/jackqq/archive/2011/09/02/511.aspx/feed 0 Google Chrome 的离线数据 http://blog.donews.com/jackqq/archive/2011/09/01/493.aspx http://blog.donews.com/jackqq/archive/2011/09/01/493.aspx#comments Thu, 01 Sep 2011 05:46:06 +0000 jackqq http://jackqq.wordpress.com/?p=493 Google Chrome 浏览器一直支持本地存储。现在 Google 又重新支持了离线的 Gmail，将来还可能支持 Calendar。这样一来，邮件、日历、联系人等等都会缓存在本地磁盘上。

这些数据存储在一些 SQLite 数据库里，它们的位置是：

  • 以前用 Gears 时，在 [chromeuser]\Plugin Data\Google Gears 里。
  • 现在用 HTML5 时，在 [chromeuser]\databases 里。

其中 [chromeuser] 即用户数据目录，一般位于 %localappdata%\Google\Chrome\User Data\Default。

要保护这些数据，就应对数据库位置配置权限或加密。

]]> http://blog.donews.com/jackqq/archive/2011/09/01/493.aspx/feed 0 HTC Desire S 调试界面 http://blog.donews.com/jackqq/archive/2011/08/29/486.aspx http://blog.donews.com/jackqq/archive/2011/08/29/486.aspx#comments Sun, 28 Aug 2011 16:29:19 +0000 jackqq http://jackqq.wordpress.com/?p=486 HTC Desire S 调试界面。在电话拨号界面中用拨号键输入以下序列：

  • *#*#info#*#* 手机信息、电池信息等
  • *#*#diag#*#* 诊断工具：灯、屏幕、按键等

注： info = 4636;  diag = 3424

参考：HTC购买注意事项

]]> http://blog.donews.com/jackqq/archive/2011/08/29/486.aspx/feed 0 portsnap on FreeBSD 8.1 http://blog.donews.com/jackqq/archive/2011/08/16/451.aspx http://blog.donews.com/jackqq/archive/2011/08/16/451.aspx#comments Tue, 16 Aug 2011 02:20:32 +0000 jackqq http://jackqq.wordpress.com/?p=451 Running portsnap(8) on FreeBSD 8.1-RELEASE requires 256MB system RAM to avoid any ‘Killed’ process. Memory requirement may increase for a server running daemon processes.

]]> http://blog.donews.com/jackqq/archive/2011/08/16/451.aspx/feed 0 Mounting ISO on FreeBSD http://blog.donews.com/jackqq/archive/2011/08/16/425.aspx http://blog.donews.com/jackqq/archive/2011/08/16/425.aspx#comments Mon, 15 Aug 2011 16:48:41 +0000 jackqq http://jackqq.wordpress.com/?p=425 # mdconfig -a -t vnode -f /path/to/file.iso md0 # mount_cd9660 -o ro /dev/md0 /mount-point ]]> http://blog.donews.com/jackqq/archive/2011/08/16/425.aspx/feed 0 Test DHCP server using nmap http://blog.donews.com/jackqq/archive/2011/08/16/422.aspx http://blog.donews.com/jackqq/archive/2011/08/16/422.aspx#comments Mon, 15 Aug 2011 16:46:33 +0000 jackqq http://jackqq.wordpress.com/?p=422 Test DHCP server using nmap:

nmap -n -sU -p67 --script=dhcp-discover.nse dhcp.server.address
]]> http://blog.donews.com/jackqq/archive/2011/08/16/422.aspx/feed 0 Building Internet performance benchmark tools on Ubuntu http://blog.donews.com/jackqq/archive/2011/08/16/411.aspx http://blog.donews.com/jackqq/archive/2011/08/16/411.aspx#comments Mon, 15 Aug 2011 16:32:24 +0000 jackqq http://jackqq.wordpress.com/?p=411 1/1/10

install packages on Server: binutils, gcc, libssl-dev
install packages on Desktop: patch, libssl-dev

building dnsperf on Ubuntu

install packages on Desktop: libbind-dev, libkrb5-dev, libssl-dev, libcap-dev, libxml2-dev

]]> http://blog.donews.com/jackqq/archive/2011/08/16/411.aspx/feed 0 拆装 SONY 小本 VGN-T17C/S http://blog.donews.com/jackqq/archive/2011/08/16/407.aspx http://blog.donews.com/jackqq/archive/2011/08/16/407.aspx#comments Mon, 15 Aug 2011 16:17:15 +0000 jackqq http://jackqq.wordpress.com/?p=407 2011-02-17
拆装了很老的 SONY 小本 VGN-T17C/S，为了拆它的内存，终于发现原来它的原装内存是焊在主板上的，只能加不能拆，而且显然不是常规的笔记本内存。还发现要看内存只需把键盘拆下来就行，拆键盘需要拧背面的三个螺丝，箭头尾部有个黑点，然后翻过来机身正面，键盘顶部有两个小卡子，翘起来抽出即可。键盘下面、转轴左边还有螺丝，是拆机壳用的。

]]> http://blog.donews.com/jackqq/archive/2011/08/16/407.aspx/feed 0 在 Google Calendar 中搜索 http://blog.donews.com/jackqq/archive/2011/08/16/405.aspx http://blog.donews.com/jackqq/archive/2011/08/16/405.aspx#comments Mon, 15 Aug 2011 16:10:22 +0000 jackqq http://jackqq.wordpress.com/?p=405 要在 Google Calendar 里搜索带中文的事件，只需要加上半角的引号即可。
http://www.google.com/support/forum/p/Calendar/thread?tid=2d9a637130e5fbed&hl=en

]]> http://blog.donews.com/jackqq/archive/2011/08/16/405.aspx/feed 0 Offline Maps on mobile devices http://blog.donews.com/jackqq/archive/2011/08/12/371.aspx http://blog.donews.com/jackqq/archive/2011/08/12/371.aspx#comments Fri, 12 Aug 2011 15:55:17 +0000 jackqq http://jackqq.wordpress.com/?p=371 Creating: TrekBuddy_Atlas_Creator_1.6_final_SQLite

Android application: RMaps

]]> http://blog.donews.com/jackqq/archive/2011/08/12/371.aspx/feed 0