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forwarding

C++03完美转发(Perfect Forwarding in C++03)

问题 如果你有这个功能 template<typename T> f(T&); 然后尝试调用它,让我们说一个像这样的右值 f(1); 为什么不只是将 T 推导出为 const int,使参数成为 const int& 从而可绑定到右值? 回答1 这在我在最近的 C++0x 转发问题中链接的文档中被称为潜在的解决方案。 它会工作得很好,但它破坏了现有的代码。 考虑(直接从文档中): template<class A1> void f(A1 & a1) { std::cout << 1 << std::endl; } void f(long const &) { std::cout << 2 << std::endl; } int main() { f(5); // prints 2 under the current rules, 1 after the change int const n(5); f(n); // 1 in both cases } 或者 // helper function in a header template<class T> void something(T & t) // #1 { t.something(); } // source #include <vector> void something(bool) // #2 { } int main()

2021-06-23 20:32:03    分类:技术分享    c++   forwarding   c++03

forwarding packets by changing header contents(Ether, network layer) and using pcap_inject in ubuntu(C program)

I want to make a C program in which one laptop(say server) is acting as a HTTP forwarder(it has access to the internet by WLAN) for another laptop(say client) and both laptops are connected to each other by LAN. Steps that I implemented are : 1) (in the child process)listen at eth1 and if destination port == 80 , then modify packet - (a) write destination ip and source port in router.txt (b) change source IP, source and destination mac addr, checksum (c) inject the modified packet in wlan1 interface using pcap_inject. 2) (in the parent process)listen to wlan1 and if source ip & destination

2021-06-23 11:51:04    分类:问答    forwarding   ubuntu-11.04   pcap

How can I forward a url to the appropriate page?

How can I forward a url such as: http://www.mysite.com/Join to the appropriate page: http://www.mysite.com/JoinOptions/MemberRegistration.aspx Is there some way to do this? I'm using a DNN CMS but if you're unfamiliar with DNN and still have a solution for redirecting that would be helpful. Thanks, Matt

2021-06-23 09:55:42    分类:问答    asp.net   url-rewriting   dotnetnuke   friendly-url   forwarding

adb 将远程端口转发到本地机器(adb forward remote port to local machine)

问题 这是一个关于在an​​droid上使用adb的查询。 有没有办法将android设备/模拟器上的远程端口即端口转发到设备所连接的本地机器? $ adb forward tcp:port1 tcp:port2 # 将机器上的本地端口port1 转发到设备上的port2。 提前致谢! 回答1 最近谷歌更新了亚行服务。 并添加了应该完成这项工作的reverse命令。 从反向文档: 这实现了adb reverse功能,即反向从设备到主机的套接字连接的能力。 <forward-command>是上面描述的转发命令之一,如: list-forward forward:<local>;<remote> forward:norebind:<local>;<remote> killforward-all killforward:<local> 请注意,在这种情况下, <local>对应于设备上的套接字, <remote>对应于主机上的套接字。 reverse:list-forward的输出与 host:list-forward 相同,除了<serial>将只是host 。 回答2 您是否真的需要转发端口,或者您只是在寻找一种使用套接字从运行在 android shell 上的程序到您的主机的通信方式? 我能够通过将我的消息发送到“10.0.2.2”上感兴趣的端口来完成后者,这是主机的环回适配器

2021-06-23 06:33:20    分类:技术分享    android   port   forwarding   adb

How to redirect a URL by only changing the domain name, while keeping other URL parameters

I'm now migrating my website to a new host and domain, and I want to know if I can redirect anyone who enters any URL of the old website to the new website, while keeping all of the URL parameters. for example: When somebody types in this url http://www.domainA.com/blog/?p=667, I want him to be redirected to http://www.domainB.com/blog/?p=667. Is there any way I can do that by adding some .htaccess configurations? Thanks!

2021-06-10 05:31:30    分类:问答    regex   .htaccess   redirect   migration   forwarding

VirtualBox 端口转发不适用于 NAT 适配器(VirtualBox port forwarding not working with NAT adapter)

问题 我正在尝试使用 VirtualBox 进行简单的端口转发,看起来 VirtualBox.exe 正在侦听主机上的端口,但实际上并未将连接转发到来宾。 我尝试了多个端口,并且多次重新启动 VirtualBox。 另一方面,来宾到主机的连接很好。 这是信息: Host: Win7 x64 Guest: Win7 x64 VirtualBox version: VirtualBox 4.2.10 Firewalls: All firewalls on host and guest disabled. Virtual Box > Machine Settings > Network Adapter 1: Attached to: NAT Cable Connected : True Port Forwarding: Rule 1: TCP, HostIP=127.0.0.1, HostPort=8081, GuestIP=127.0.0.1, GuestPort=8081 On Host: [VirtualBox.exe] TCP 127.0.0.1:8081 IBM-6KT5OPCF76P:0 LISTENING On Guest: I never get the connection request on port 8081 or any others I've tried

2021-06-09 23:30:17    分类:技术分享    networking   port   virtualbox   forwarding   NAT

iptables FORWARD 和 INPUT(iptables FORWARD and INPUT)

问题 我有一个带有 Linux pc 的家庭网络,所有这些网络都在运行 iptables。 我认为将我的 LAN 放在 Linux 网关/防火墙后面更容易,所以我在我的路由器和 LAN 之间放置了一台电脑(带 Fedora,没有 gui)并配置了 iptables。 这里没问题,INPUT 只允许 dns 和 http(和一些本地的东西),转发工作正常:局域网连接到互联网。 但我的问题是:FORWARD 是否允许所有来自外部的端口,或者仅允许我配置为 INPUT 的端口? FORWARD 和 INPUT 是一起工作还是分开? 这是我的 iptables: *nat :PREROUTING ACCEPT [16:1336] :INPUT ACCEPT [14:840] :OUTPUT ACCEPT [30:2116] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -o p1p1 -j MASQUERADE COMMIT # Completed on Tue Oct 16 09:55:31 2012 # Generated by iptables-save v1.4.14 on Tue Oct 16 09:55:31 2012 *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT

2021-06-04 15:49:03    分类:技术分享    linux   input   iptables   forwarding

如何在 Amazon Route53 中将 http 请求转发到 https?(How to forward http request to https in Amazon Route53?)

问题 我在 Amazon Route53 中有一个子域。 让我们说secure.example.com 如果请求像https://secure.example.com一样可以,但我想强制http请求通过 https 来。 当用户输入http://secure.example.com它需要转发到https://secure.example.com 。 在Amazon Route53是否有域级重定向/转发请求通过http到https ? 回答1 不,没有办法做到这一点——因为它不是强制任何特定协议或将值从一个协议推送到另一个协议的 DNS 功能。 您可以在 Web 服务器级别(在 Apache、IIS 或 NGINX 中)轻松完成此操作。 在任何一种情况下,将特定记录指向特定地址(无论是 IP 还是其他主机名)的 A 或 CNAME 值都是相同的,它只是通过端口 80 或端口 443 进行连接。 在 Apache 中,您可以简单地使用重写(首先启用mod_rewrite ): RewriteEngine On RewriteCond %{SERVER_PORT} !^443$ RewriteRule (.*) https://www.host.com/$1 [R] 回答2 只是这个问题的快速更新。 虽然回答您的问题不,您不能使用路由 53 来强制使用 HTTPS,但这会导致一些人相信在

2021-06-03 22:45:02    分类:技术分享    amazon-web-services   https   amazon-route53   forwarding

Client firewall blocks all ports but 80 and 443, need away to forward requets on port 443 to SSH or HTTPS

I am currently working at a client were they have locked down the network, except for ports 80 and 443. I need to connect to our server using SSH, but the same server also runs our website. We do not want to invest in a new server or place a second network card. I have been searching the internet for away to setup our linux server (running CentOS 5), so that there is a daemon listening on port 443 that depending on the client protocol forwards the request to the correct internal port (SSH 22 or HTTPS moved to a differentport_. There are a lot of people on internet looking for this kind

2021-06-03 02:29:38    分类:问答    https   ssh   firewall   port   forwarding

Jersey URL forwarding

Inside a Jersey REST method I would like to forward to an another website. How can I achieve that? @Path("/") public class News { @GET @Produces(MediaType.TEXT_HTML) @Path("go/{news_id}") public String getForwardNews( @PathParam("news_id") String id) throws Exception { //how can I make here a forward to "http://somesite.com/news/id" (not redirect)? return ""; } } EDIT: I'm getting the No thread local value in scope for proxy of class $Proxy78 error when trying to do something like this: @Context HttpServletRequest request; @Context HttpServletResponse response; @Context ServletContext context

2021-06-02 04:33:57    分类:问答    java   url   jersey   forwarding