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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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