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    | 22 Feb 2015   01:27:13 pm | 
      CentOS mount CDrom and USB | 
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    mount -t vfat /dev/sdb1 /media/USB 
mount -r -t iso9660 /dev/sr0 /mnt/cdrom | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 30 Jan 2015   05:04:50 pm | 
      CentOS GHOST(幽灵)漏洞修复方法 | 
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    修复方法: 
 
RedHat、Fedora、CentOS系统: 
 
yum update glibc glibc-devel glibc-common glibc-headers 
 
 
Debian、Ubuntu系统 
 
apt-get clean && apt-get update && apt-get upgrade 
 
 
升级后,建议重启用到 glibc 的进程,或者重启服务器。 | 
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    Category : About
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 08 Jan 2015   10:23:53 am | 
      centos 改变语言并立即生效 | 
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    [root@dlp ~]# echo $LANG # show current system language 
 en_US.UTF-8  
 
[root@dlp ~]# vi /etc/sysconfig/i18n  
 
 
[root@dlp ~]# source /etc/sysconfig/i18n  
 
 
[root@dlp ~]# echo $LANG # show current system language 
 ja_JP.UTF-8# changed | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 07 Jan 2015   10:42:19 pm | 
      centos vpn 接通后无法连接internet | 
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    vpn可以连接到服务器并成功连接,但是无法上任何外网网站。 
经查: 
 
1.在vpn client pc上ping 服务器的pptpd地址192.168.80.1,可以ping通,ping服务器的外网地址也可以ping通,ping google或任何internet地址都不能。 
 
2.因此怀疑是服务器没有做ip转发。 
 
上到服务器上,查iptables, (实际上iptables是centos的防火墙,但是也是用来ip转发forward的)。 
用来查转发的命令是 : 
 
iptables -t nat -nL 
 
发现由于多次调试,里面杂乱无章,用下面命令清空: 
 
iptables -F  
iptables -X  
iptables -t nat -F  
iptables -t nat -X  
 
然后重新做: 
 
iptables -t nat -A POSTROUTING -s 192.168.80.0/24 -o seth0 -j MASQUERADE 
 
这个指令完成后立刻生效绝对不要重启iptables, 应为错误的 iptables设置还在/etc/sysconfig/iptables中,一重启反而还是错的。 
 
立刻测试vpn,发现问题解决,的确是转发有问题。 
 
这时把/etc/sysconfig/iptables移走,然后 
 
/sbin/service iptables save 
 
把正确的/etc/sysconfig/iptables文件保留下来,这样重启iptable service才不会依然是错误的。 
 
参考: 
 
http://blog.csdn.net/kuailedesky/article/details/41551077 
http://bbs.aliyun.com/read/163732.html?spm=5176.7189909.0.0.fnGeeC&page=2 | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 31 Dec 2014   02:03:42 pm | 
      让vlc播放中文字幕不出乱码 | 
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    1。字幕文件在notepad中打开存成utf-8格式 
2。VLC中, Subtitles/OSD设置里的Default encoding启用Universal (UTF-  
3。VLC中,Subtitle effects里,Font选 "Arial Unicode MS" 
 
友情链接:http://wxwz.welovechina.cn | 
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    Category : Windows Multimedia
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 29 Dec 2014   09:14:36 am | 
      centos 取消屏保 | 
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    发现centos 时间一长,就自动黑屏屏保,这样不方便监控,查后只要这样做, 
 
setterm -blank 0 
 
并在/etc/rc.d/rc.local 加入这句,就可以在启动后自动把屏保关掉。 | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 19 Dec 2014   04:47:48 pm | 
      php中ob_flush和flush的用法 | 
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    [url] 
 
http://www.60ke.cn/html/wlbc/phpbc/2014/1128/16536.html[/url] | 
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    Category : WEB programming
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 17 Dec 2014   02:14:49 pm | 
      CentOS检查,添加,删除自启动服务 | 
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    自启动列表:chkconfig --list  
 
关闭: 
chkconfig {service-name} off 
 
添加: 
chkconfig --add {service-name} 
 
开启: 
chkconfig {service-name} on 
 
防火墙是iptables | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 17 Dec 2014   01:56:54 pm | 
      CentOS中开机自动启动某个服务 | 
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    To auto start a new service: 
1.Find out the name of service’s script from /etc/init.d/ directory e.g. mysqld or httpd 
2.Add it to chkconfig 
sudo /sbin/chkconfig --add mysqld 
3.Make sure it is in the chkconfig. 
sudo /sbin/chkconfig --list mysqld 
4.Set it to autostart 
sudo /sbin/chkconfig mysqld on 
 
To stop a service from auto starting on boot 
1.sudo /sbin/chkconfig mysqld off | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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    | 17 Dec 2014   01:54:06 pm | 
      Top命令中的翻页 | 
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    Centos, linux中Top命令翻页方法 
 
在Top中用键盘来翻页 
 
 
Shift+< (Shift和大于号同时按) 
Shift+> | 
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    Category : Unix&Linux
    | By : Eric Shan |   Comments [0] |   Trackbacks  [0]  | 
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