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  • 使Cacti流量图超过80M的解决方法

    Apr032013

    Before：

    # /usr/local/rrdtool/bin/rrdtool info /var/www/html/rra/71/2995.rrd
    ds[traffic_in].min = 0.0000000000e+00
    ds[traffic_in].max = 1.0000000000e+07
    ds[traffic_out].min = 0.0000000000e+00
    ds[traffic_out].max = 1.0000000000e+07

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    作者：u2 | 分类：linux | 标签：,
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  • centos5.4升级网卡驱动

    Jan042013

    机器型号：Dell R710，操作系统Centos5.4，症状：流量大时网卡不通，日志无明显迹象。 解决办法，升级网卡驱动： 升级前： [root@2hei.net]# ethtool -i eth0 driver: bnx2 version: 1.9.3 firmware-version: 5.2.3 NCSI 2.0.11 bus-info: 0000:01:00.0 步骤如下： wget http://ftp.us.dell.com/network/Bcom_LAN_16.4. ...

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    作者：u2 | 分类：linux | 标签：,
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  • Linux Keyboard shortcut keys

    Oct212011

    CTRL + C    Cancels the currently running command.CTRL + D    Logs out of the current session.CTRL + Z    Cancels current operation, moves back a directory or takes the current operation and moves it to the background. CTRL + A    Move ...

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    作者：u2 | 分类：linux | 标签：
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  • nice linux

    Sep152011

    Just a mark: nice -n 19 nice 19 sudo nice -n -20 nice -20 ————- $man nice NICE(1)                          User Commands                         N ...

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    作者：u2 | 分类：linux
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  • reset low speed USB device using ehci_hcd

    Sep062011

    dmesg has such logs: usb 1-5.1: reset low speed USB device using ehci_hcd and address 4 usb 1-5.1: reset low speed USB device using ehci_hcd and address 4 usb 1-5.1: reset low speed USB device using ehci_hcd and address 4 usb 1-5.1: reset low speed USB device using ehci_hcd and address 4 usb 1-5 ...

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    作者：u2 | 分类：linux
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  • Linux will keep /tmp files for 10 days by default

    Aug032011

    For files in /tmp directory, linux has cron at /etc/cron.daily to deal with:[2hei.net cron.daily]$ cat tmpwatch flags=-umc/usr/sbin/tmpwatch “$flags” -x /tmp/.X11-unix -x /tmp/.XIM-unix \    -x /tmp/.font-unix -x /tmp/.ICE-unix -x /tmp/.Test-unix 240 /tmp/usr/sbin/tmpw ...

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