( ! ) Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/lib/menu/GKBase.class.php on line 114
Call Stack
#TimeMemoryFunctionLocation
10.0021413904{main}( ).../index.php:0
20.10754264672Joomla\CMS\Application\SiteApplication->execute( ).../index.php:49
30.507315977904Joomla\CMS\Application\SiteApplication->render( ).../CMSApplication.php:202
40.507515977960Joomla\CMS\Application\SiteApplication->render( ).../SiteApplication.php:778
50.507515978336Joomla\CMS\Document\HtmlDocument->parse( ).../CMSApplication.php:1030
60.507515978336Joomla\CMS\Document\HtmlDocument->_fetchTemplate( ).../HtmlDocument.php:545
70.507715978432Joomla\CMS\Document\HtmlDocument->_loadTemplate( ).../HtmlDocument.php:730
80.508116016672require( '/var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/component.php' ).../HtmlDocument.php:668
90.512716308616GKTemplate->__construct( ).../component.php:31
100.536516462496GKTemplateMenu->getMenuType( ).../gk.framework.php:84
110.537316506464require_once( '/var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/lib/menu/GKMenu.php' ).../helper.menu.php:19
( ! ) Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/lib/menu/GKHandheld.php on line 76
Call Stack
#TimeMemoryFunctionLocation
10.0021413904{main}( ).../index.php:0
20.10754264672Joomla\CMS\Application\SiteApplication->execute( ).../index.php:49
30.507315977904Joomla\CMS\Application\SiteApplication->render( ).../CMSApplication.php:202
40.507515977960Joomla\CMS\Application\SiteApplication->render( ).../SiteApplication.php:778
50.507515978336Joomla\CMS\Document\HtmlDocument->parse( ).../CMSApplication.php:1030
60.507515978336Joomla\CMS\Document\HtmlDocument->_fetchTemplate( ).../HtmlDocument.php:545
70.507715978432Joomla\CMS\Document\HtmlDocument->_loadTemplate( ).../HtmlDocument.php:730
80.508116016672require( '/var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/component.php' ).../HtmlDocument.php:668
90.512716308616GKTemplate->__construct( ).../component.php:31
100.539616629712GKTemplateMenu->getMenuType( ).../gk.framework.php:85
 Centos安装L2TP/IPSEC 与简单故障处理
Logo
Print this page

Centos安装L2TP/IPSEC 与简单故障处理

转贴自

http://www.vpsyou.com/centos-install-l2tpipsec-and-simple-troubleshooting/

 

 

转贴自

http://www.vpsyou.com/centos-install-l2tpipsec-and-simple-troubleshooting/

 

说实话，折腾L2TP/IPSEC是最难受的。不像PPTP有高人写好的一键安装包可以直接安装。而在过程会出现各种各样的状况，有的甚至 涉及到内核。本文中提到的方法与步骤是我参阅许多教程和文档后亲自实践操作可行的。若读者在安装过程中出现问题，请留意文章最后的简单故障处理

开始：
服务器环境 ：Centos 5.5 64位

先更新软件源

32位
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm

64位
rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-3.noarch.rpm

一：安装OPENSWAN

1.这里是下载到机器上自己编译，而直接不用rpm包。可能有些教程建议用rpm包，但实际上还是亲自实验看看比较有把握。

?View Code PHP
yum install gmp-devel gawk flex bison wget lsof  //安装编译用的包，同时也会把lsof安装上，用于最后端口检测
wget http://www.openswan.org/download/openswan-2.6.28.tar.gz  //下载OPENSWAN
tar zxvf openswan-2.6.28.tar.gz  //解压
cd  openswan-2.6.28.tar.gz
make programs  //编译
make install  //安装

2.修改/etc/ipsec.conf文件

如果你觉得用命令行编辑比较麻烦，我建议用WinSCP 把文件下载下来，用Notepad++编辑后上传覆盖 ^_^
把ipsec.conf修改成这样

?View Code PHP
version 2.0
config setup
  nat_traversal=yes
  virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12
  oe=off
  protostack=netkey
 
conn L2TP-PSK-NAT
  rightsubnet=vhost:%priv
  also=L2TP-PSK-noNAT
 
conn L2TP-PSK-noNAT
  authby=secret
  pfs=no
  auto=add
  keyingtries=3
  rekey=no
  ikelifetime=8h
  keylife=1h
  type=transport
  left=1.2.3.4  //你的服务器IP
  leftprotoport=17/1701
  right=%any
  rightprotoport=17/%any

3.修改/etc/ipsec.secrets

把ipsec.secrets修改成这样

?View Code PHP
1.2.3.4   %any:  PSK "YourSharedSecret"

其中1.2.3.4是你的服务器IP，YourSharedSecret是你自定义的一串字符，就是今后连接时用的密钥。

4.完成以上编辑以后, 运行以下命令:

?View Code PHP
for each in /proc/sys/net/ipv4/conf/*
do
echo 0 > $each/accept_redirects
echo 0 > $each/send_redirects
done

5. 重启OPENSWAN

?View Code PHP
service ipsec restart

然后检查一下OPENSWAN是否正常工作

?View Code PHP
ipsec verify

看看输出的结果是不是都是OK，除了最后一个是DISABLED。如果不是没关系，请留意文章最后的故障处理。

二：安装L2TP

?View Code PHP
yum install xl2tpd  //如果出现找不到包就是没有更新软件源

2.安装完成后, 修改/etc/xl2tpd/xl2tpd.conf

把xl2tpd.conf, 修改成这样

?View Code PHP
[global]
ipsec saref = yes
 
[lns default]
ip range = 10.1.2.2-10.1.2.255  //这里可以根据需要改成没被占用的IP段
local ip = 10.1.2.1
;require chap = yes
refuse chap = yes
refuse pap = yes
require authentication = yes
ppp debug = yes
pppoptfile = /etc/ppp/options.xl2tpd
length bit = yes

3.安装pppd

?View Code PHP
yum install ppp

4.安装完毕, 在/etc/ppp下建立options.xl2tpd文件（如果已经有了可以直接修改）

把options.xl2tpd修改成这样

?View Code PHP
require-mschap-v2
ms-dns 8.8.8.8  //VPS使用的DNS服务器
ms-dns 8.8.4.4  //VPS使用的DNS服务器
asyncmap 0
auth
crtscts
lock
hide-password
modem
debug
name l2tpd
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4

如果需要Radius支持，就在最后一行加上
plugin radius.so
并复制radius.so到该目录下。

5.给xl2tpd添加用户, 填在/etc/ppp/chap-secrets中

如：

?View Code PHP
#  user  server   pass    IP
l2tpuser  xl2tpd   l2tppass  *

格式为：
用户名 连接服务 密码 来源IP

来源IP为*时即允许所有来源。server下面写的是xl2tpd即为xl2tpd用户。

6. 重启xl2tpd，设置iptables转发

?View Code PHP
service xl2tpd restart
iptables --table nat --append POSTROUTING --jump MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward

7.修改/ect/sysctl.conf

把sysctl.conf 修改成这样

?View Code PHP
net.ipv4.ip_forward = 1
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296

8.让L2TP开机自启。

?View Code PHP
chkconfig xl2tpd on

9.最后在/etc/rc.local的exit 0前加入以下语句

?View Code PHP
iptables --table nat --append POSTROUTING --jump MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward
for each in /proc/sys/net/ipv4/conf/*
do
  echo 0 > $each/accept_redirects
  echo 0 > $each/send_redirects
done
/etc/init.d/ipsec restart

这样一个L2TP/IPSEC服务器就大功告成了！！！赶紧连接试试看吧 ^_^

三：简单故障处理。

许多人在执行ipsec verify的时候会出现错误，这里说两个我遇到最郁闷的状况。

1.如只有出现以下两行Failed，别的全部OK

Pluto listening for NAT-T on udp 4500 [Failed]
Two or more interfaces found, checking IP forwarding [Failed]

这个问题曾经困扰了我很久，最后在朋友和高手协助下修复了。

修改ipsec.conf。

在

?View Code PHP
left=1.2.3.4  //你的服务器IP
leftprotoport=17/1701

中间加上一行：

?View Code PHP
leftid=1.2.3.4  //你的服务器IP

在

?View Code PHP
right=%any
rightprotoport=17/%any

中间加上一行

?View Code PHP
rightid=%any

即可解决这个问题。

2.比上面的问题更郁闷的还有在ipsec verify的时候全部OK，却不能用没有密钥连接的情况。（不使用密钥可以正常连接。）

这个问题翻来覆去，和朋友检查了所有有关的配置文件和系统环境。还是没有结果，终于在看manpage中看到了相关内容。
简单解释下：系统的esp模块是需要加密。而默认的加密模块我的内核里没有，所以内核报错了。那么固定一种加密方式，就解决问题了。
是不是很纠结。但是解决起来却非常简单。（有用户报告32位系统无法解决，请大家自行测试）

在ipsec.conf中的

?View Code PHP
pfs=no
auto=add

两行之间加上

?View Code PHP
esp=3des-sha1-96

这样就定义了加密模块！问题就解决了
同时还有
esp=3des-md5-96
esp=3des
可供选择

先解决这两个棘手的问题，如果有遇到别的情况可以Google一下或者查阅相关文档。

希望本文对大家有所帮助。

最后幽默一下：我们不仅要常常激励自己努力学习，同时也要激发广大的社会主义青年学习相关技术的兴趣，用科学技术带领亿万同胞脱离苦海……

^_^

Last modified onSunday, 14 October 2012 04:07

( ! ) Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/html/com_k2/templates/default/item.php on line 169
Call Stack
#TimeMemoryFunctionLocation
10.0021413904{main}( ).../index.php:0
20.10754264672Joomla\CMS\Application\SiteApplication->execute( ).../index.php:49
30.10764264672Joomla\CMS\Application\SiteApplication->doExecute( ).../CMSApplication.php:196
40.360411455720Joomla\CMS\Application\SiteApplication->dispatch( ).../SiteApplication.php:233
50.361311480224Joomla\CMS\Component\ComponentHelper::renderComponent( ).../SiteApplication.php:194
60.362511535552Joomla\CMS\Component\ComponentHelper::executeComponent( ).../ComponentHelper.php:377
70.362811562952require_once( '/var/www/vhosts/shan.info/httpdocs/components/com_k2/k2.php' ).../ComponentHelper.php:402
80.374811962584K2ControllerItem->execute( ).../k2.php:64
90.374811962584K2ControllerItem->display( ).../BaseController.php:710
100.390012613288K2ControllerItem->display( ).../item.php:78
110.390012613288K2ControllerItem->display( ).../controller.php:19
120.396312984328Joomla\CMS\Cache\Controller\ViewController->get( ).../BaseController.php:663
130.398813004696K2ViewItem->display( ).../ViewController.php:102
140.499615917216K2ViewItem->display( ).../view.html.php:742
150.499715917216K2ViewItem->loadTemplate( ).../HtmlView.php:230
160.502216090152include( '/var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/html/com_k2/templates/default/item.php' ).../HtmlView.php:701
  • Published in VPN
  • Read 4203 times

( ! ) Notice: Only variables should be assigned by reference in /var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/html/com_k2/templates/default/item.php on line 478
Call Stack
#TimeMemoryFunctionLocation
10.0021413904{main}( ).../index.php:0
20.10754264672Joomla\CMS\Application\SiteApplication->execute( ).../index.php:49
30.10764264672Joomla\CMS\Application\SiteApplication->doExecute( ).../CMSApplication.php:196
40.360411455720Joomla\CMS\Application\SiteApplication->dispatch( ).../SiteApplication.php:233
50.361311480224Joomla\CMS\Component\ComponentHelper::renderComponent( ).../SiteApplication.php:194
60.362511535552Joomla\CMS\Component\ComponentHelper::executeComponent( ).../ComponentHelper.php:377
70.362811562952require_once( '/var/www/vhosts/shan.info/httpdocs/components/com_k2/k2.php' ).../ComponentHelper.php:402
80.374811962584K2ControllerItem->execute( ).../k2.php:64
90.374811962584K2ControllerItem->display( ).../BaseController.php:710
100.390012613288K2ControllerItem->display( ).../item.php:78
110.390012613288K2ControllerItem->display( ).../controller.php:19
120.396312984328Joomla\CMS\Cache\Controller\ViewController->get( ).../BaseController.php:663
130.398813004696K2ViewItem->display( ).../ViewController.php:102
140.499615917216K2ViewItem->display( ).../view.html.php:742
150.499715917216K2ViewItem->loadTemplate( ).../HtmlView.php:230
160.502216090152include( '/var/www/vhosts/shan.info/httpdocs/templates/gk_publisher/html/com_k2/templates/default/item.php' ).../HtmlView.php:701
Template Design © Joomla Templates | GavickPro. All rights reserved.