在Ubuntu 12.04 LTS上安装wireshark

在Ubuntu 12.04 LTS上安装wireshark并且限定数据包捕获到一个组，也就是wireshark组。相信你能用这些指令在其他发行版上安装wireshark。虽然你只能读到我在ubuntu上的测试，但是如果它不适合随时告诉我，我将修改这些指令。首先，我们从终端上安装wireshark。安装wireshark：

sudo

apt-get

install

wireshark

如果你以非超级用户运行wireshark，你会得到一个信息 “No interface can be used for capturing
in this system with the current configuration.”(参考上图)。下列的步骤可以改正这个问题：

创建wireshark组：

把你的用户名添加到wirehark组：

sudo

usermod

-a -G wiresharkYOUR_USER_NAME

[/code]

改变文件dumpcap的所属组为wireshark

sudo

chgrp

wireshark

/usr/bin/dumpcap

[/code]

改变文件的访问权限为所属组可执行：

sudo

chmod

750

/usr/bin/dumpcap

赋予setcap功能：

sudo

setcap cap_net_raw,cap_net_admin=eip

/usr/bin/dumpcap

验证是否已经修改成功：这时候，你需要注销用户。现在你应该可以作为一个非超级用户登录wireshark了，只要用户是在wiresharp组内，基本上一切都可以正常工作了。关于capabilities with setcap的一些解释：

Linux divides the privileges traditionally
associated with superuser into distinct units, known as capabilities,
which can be independently enabled and disabled.  Capabilities are a
per-thread attribute.

CAP_NET_RAW
* use RAW and PACKET sockets;
* bind to any address for transparent proxying.

CAP_NET_ADMIN
Perform various network-related operations:
* interface configuration;
* administration of IP firewall, masquerading, and accounting;
* modify routing tables;
* bind to any address for transparent proxying;
* set type-of-service (TOS)
* clear driver statistics;
* set promiscuous mode;
* enabling multicasting;

本文的原址是：

http://www.dickson.me.uk/2012/09/17/installing-wireshark-on-ubuntu-12-04-lts/