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CentOS mount CDrom and USB
CentOS GHOST(幽灵)漏洞修复方法
centos 改变语言并立即生效
centos vpn 接通后无法连接internet
让vlc播放中文字幕不出乱码
centos 取消屏保
php中ob_flush和flush的用法
CentOS检查,添加,删除自启动服务
CentOS中开机自动启动某个服务
Top命令中的翻页
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22 Feb 2015   01:27:13 pm
CentOS mount CDrom and USB
mount -t vfat /dev/sdb1 /media/USB
mount -r -t iso9660 /dev/sr0 /mnt/cdrom
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
30 Jan 2015   05:04:50 pm
CentOS GHOST(幽灵)漏洞修复方法
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。
Category : About | By : Eric Shan | Comments [0] | Trackbacks [0]
08 Jan 2015   10:23:53 am
centos 改变语言并立即生效
[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
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
07 Jan 2015   10:42:19 pm
centos vpn 接通后无法连接internet
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
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
31 Dec 2014   02:03:42 pm
让vlc播放中文字幕不出乱码
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
Category : Windows Multimedia | By : Eric Shan | Comments [0] | Trackbacks [0]
29 Dec 2014   09:14:36 am
centos 取消屏保
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。
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
19 Dec 2014   04:47:48 pm
php中ob_flush和flush的用法
[url]

http://www.60ke.cn/html/wlbc/phpbc/2014/1128/16536.html[/url]
Category : WEB programming | By : Eric Shan | Comments [0] | Trackbacks [0]
17 Dec 2014   02:14:49 pm
CentOS检查,添加,删除自启动服务
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
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
17 Dec 2014   01:56:54 pm
CentOS中开机自动启动某个服务
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
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
17 Dec 2014   01:54:06 pm
Top命令中的翻页
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+>
Category : Unix&Linux | By : Eric Shan | Comments [0] | Trackbacks [0]
 
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