小心重庆美联英语的注册金骗局

Published on December 20, 2011 in Tech. 7 Comments Tags: .

上周末去重庆观音桥的美联英语咨询情况，结果被里面的要求交什么注册金，300元（因为我只带了300元）。但我第二天回来在Google、百度上搜索他们情况后发现并不是我理想中的那样。当我提到退款时，就说不能退的啦。我立马打12315电话。我说明情况之后，重庆12315的工作人员，只问了一句“他是培训机构吗?”。我说“是”。“那你打教委的电话”，“请问教委的电话是多少呢？”。“你自己打114查询啊”。

……

天啊，这也叫便民？难道真把我们当便民了？当然我没有打教委的电话，说实话，我是第一次打12315在我心中一直是能够为消费者办事的电话，结果呢？我已经对这些所谓的“服务”失去信心了。以后还是小心点算了吧。

让我们来看看一些有趣的东西吧：

更多相关信息请看留言。

Filezilla 3.5.3 连接VsFTPd TLS问题

Published on January 30, 2012 in Tech. 0 Comments Tags: , . 
Response arg: error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher

/etc/vsftpd/vsftpd.conf

ssl_ciphers=HIGH

原因是

The default is DES-CBC3-SHA which seems that is not supported anymore by FileZilla

MySQL regex_replace Function

Published on January 18, 2012 in MySQL. 0 Comments Tags: .
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<pre>DELIMITER $$
CREATE FUNCTION  `regex_replace`(pattern VARCHAR(1000),replacement VARCHAR(1000),original VARCHAR(1000))

RETURNS VARCHAR(1000)
DETERMINISTIC
BEGIN
 DECLARE temp VARCHAR(1000);
 DECLARE ch VARCHAR(1);
 DECLARE i INT;
 SET i = 1;
 SET temp = '';
 IF original REGEXP pattern THEN
  loop_label: LOOP
   IF i&gt;CHAR_LENGTH(original) THEN
    LEAVE loop_label;
   END IF;
   SET ch = SUBSTRING(original,i,1);
   IF NOT ch REGEXP pattern THEN
    SET temp = CONCAT(temp,ch);
   ELSE
    SET temp = CONCAT(temp,replacement);
   END IF;
   SET i=i+1;
  END LOOP;
 ELSE
  SET temp = original;
 END IF;
 RETURN temp;
END$$
DELIMITER ;</pre>

FreeBSD PF 防火墙简单配置

Published on January 6, 2012 in Tech. 0 Comments Tags: .
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oif="em0"
block in
pass out
pass in on $oif proto tcp to ($oif) port = 5631
pass in on $oif proto tcp from 192.168.0.0/24 to ($oif) port = 3128
pass in on $oif proto tcp to ($oif) port = 80

Gentoo emerge 更新系统方法

Published on December 27, 2011 in Tech. 0 Comments Tags: .
  1. 更新Portage树
    # emerge --sync
  2. 更新系统
    # emerge --update --deep --newuse world
  3. 移除依赖包
    # emerge --depclean
    # revdep-rebuild

NFS quick howto for centos 5

Published on December 16, 2011 in Tech. 0 Comments Tags: , , .

NFS quick howto for centos 5

To use nfs successfully, you have to configure the server and the client. In this example, the client is 192.168.0.3 and the server is 192.168.0.1. The folder to be shared is /home/sharing, and to be mounted to /mnt on the client

On the server

  1. Make directory that you want to use.
    • # mkdir /home/sharing
  2. Edit /etc/exports, insert the client machine’s ip
    • # vi /etc/exports
    • Add this line:
    • /home/sharing 192.168.0.3/255.255.255.255(rw,sync)
  3. Save
  4. Edit /etc/hosts.allow
    • # vi /etc/hosts.allow
    • Add this line:
    • portmap: 192.168.0.0/255.255.255.0
  5. Save
  6. Start nfs and portmap
    • # /etc/init.d /nfs start
    • # /etc/init.d/portmap start
On the client
  1. Start portmap
    • # /etc/init.d/portmap start
  2. Mount the nfs folder
    • # mount 192.168.0.1:/home/sharing /mnt
  3. Check /var/log/messages for any error that might occur
    • # tailf /var/log/messages
  4. Use mount to check if the folder is mounted properly
    • # mount 
    • This should be the output:
    • 192.168.0.1:/home/sharing on /mnt type nfs (rw,addr=192.168.0.1)
  5. Edit /etc/fstab to mount the shared folder on boot
    • # vi /etc/fstab
    • Add this line
    • 192.168.0.1:/mnt/sdb1/backup /mnt nfs rw,hard,intr 0 0
  6. Save
You can use 'man exports' to see the options available for /etc/exports

Continue reading ‘NFS quick howto for centos 5′

Web应用安全分析工具

Published on October 27, 2011 in Tech. 0 Comments Tags: , .

http://sectools.org/web-scanners.html

 

 

 

 

Squid 2.7 通过域名反向代理多个服务器配置

Published on October 26, 2011 in Linux. 0 Comments Tags: .
visible_hostname squid1.abc.com

#设定squid的主机名,如无此项squid将无法启动

http_port 80 accel vhost vport

#设定squid为accel加速模式,vhost必须要加.否则将无法将主机头转发至后端服务器,访问时就会出现无法找到主机头的错误

cache_peer 192.168.1.88 parent 80 0 no-query originserver name=contentchina

cache_peer 192.168.1.88 parent 80 0 no-query originserver name=bbs

cache_peer 192.168.1.1 parent 80 0 no-query originserver name=ihompy

#定义不同的父节点,将节点设为no-query以及originserver说明这些节点是实际服务器

cache_peer_domain contentchina aaa.abc.com

cache_peer_domain bbs bbb.abc.com

cache_peer_domain ihompy ccc.abc.com

#设定不同域名转发到不同的cache_peer上,如果没有这项.不同域名的域名可能被分发到同一台服务器上.

acl all src 0.0.0.0/0.0.0.0

no_cache deny all

http_access allow all

#允许所有客户端访问

cache_log /var/log/squid/cache.log

#记录日志

#***********ACL存取控制*************

#acl QueryString url_regex .php?

#***********缓冲存取控制*************

#no_cache deny QueryString

#不对符合QueryString的ACL内容进行缓冲

#***********性能优化配置*************

maximum_object_size 320010 KB

#大于此容量的对象将不会被保存在磁盘上,默认大小是4M,如果squid服务器用于缓冲flash等大型文件,建议将此值变大.否则过大的文件在下次重启后将需要重新获取

maximum_object_size_in_memory 100 KB

#最大位于内存中的对象的大小,默认大小是8K,如果服务器内存很大.可以适当提高此值的大小,建议根据网站的80%图片的大小来定.或者根据WEB服务器实际存取文件中最常访问的文件大小来定制

#***********其他可选配置*************

#dns_nameservers 10.0.0.1 192.172.0.4

#配置DNS服务器地址.获取后端时将从此dns获取IP地址

#cache_mgr [email protected]

#在错误日志中出现的webmaster地址.

HTML颜色图表

Published on October 20, 2011 in Tech. 0 Comments Tags: , .

http://fred.oracle1.com/~fred/pages/colors.html

做网站配色的好工具。

 

 

 

 

rsync 增量备份

Published on September 29, 2011 in Tech. 0 Comments Tags: .
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rsync --force --ignore-errors --delete --delete-excluded --exclude "logs/" --exclude "umslog/" 192.168.254.221::www-back /Datas/Backup/Rsync-YuKuai/app-daily --log-file=/Datas/Backup/Rsync-YuKuai/logs/`date +%Y-%m-%d`.log -azv -backup --backup-dir=/Datas/Backup/Rsync-YuKuai/app-daily-arch/`date +%Y-%m-%d`