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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (How to use Linux Cockpit to manage system performance)
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[#]: via: (https://www.networkworld.com/article/3340038/linux/sitting-in-the-linux-cockpit.html)
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[#]: author: (Sandra Henry-Stocker https://www.networkworld.com/author/Sandra-Henry_Stocker/)
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How to use Linux Cockpit to manage system performance
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======
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Linux Cockpit is a web-based interface that provides graphical administrative access to a system. Here's a look at what it allows you to control.
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If you haven't tried the relatively new Linux Cockpit, you might be surprised by all it can do. It's a user-friendly web-based console that provides some very easy ways to administer Linux systems — _through the **web**_. You can monitor system resources, add or remove accounts, monitor system usage, shut down the system and perform quite a few other tasks — all through a very accessible web connection. It's also very easy to set up and use.
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While many Linux sysadmins spend most of their time on the command line, access to a remote system using a tool like PuTTY doesn't always provide the most useful command output. Linux Cockpit provides graphs and easy-to-use forms for viewing performance measures and making changes to your systems.
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Linux Cockpit allows you to view many aspects of system performance and make configuration changes, though the task list may depend on the particular flavor of Linux that you are using. Some of the categories of tasks include the following:
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* Monitoring system activity (CPU, memory, disk IO and network traffics) — **System**
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* Viewing system log entries — **Logs**
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* Seeing how full your disk partitions are — **Storage**
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* Watching networking activity (sent and received) — **Networking**
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* Taking a look at user accounts — **Accounts**
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* Checking the status of system services — **Services**
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* Pulling up information on installed applications — **Applications**
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* Viewing and installing available updates (if logged in as root) and restart the system if needed — **Software Updates**
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* Opening and using a terminal window — **Terminal**
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Some Linux Cockpit installations will also allow you to run diagnostic reports, dump the kernel, examine SELinux (security) settings, and list subscriptions.
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Here's an example of system activity as displayed by Linux Cockpit:
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![cockpit activity][1] Sandra Henry-Stocker
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Linux Cockpit display of system activity
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### How to set up Linux Cockpit
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On some Linux installations (e.g., recent RHEL), Linux Cockpit may already be installed and ready for use. On others, you may have to take some easy steps to install it and make it accessible.
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On Ubuntu, for example, these commands should work:
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```
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$ sudo apt-get install cockpit
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$ man cockpit <== just checking
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$ sudo systemctl enable --now cockpit.socket
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$ netstat -a | grep 9090
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tcp6 0 0 [::]:9090 [::]:* LISTEN
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$ sudo systemctl enable --now cockpit.socket
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$ sudo ufw allow 9090
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```
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Once Linux Cockpit is enabled, point your browser at **https:// <system-name-or-IP>:9090**.
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A list of distributions that work with Cockpit along with installation instructions is available at [the Cockpit Project][2].
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Linux Cockpit doesn't provide any recognition of **sudo** privileges without some additional configuration. If you are not allowed to make a change using the Cockpit interface, you will see one of those little red international prohibition signs imposed over the button you'd otherwise click on.
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To get sudo privileges working, you need to be sure that the user is in the **wheel** (RHEL) or **adm** (Debian) group in the **/etc/group** file, that the Server Administrator checkbox has been selected for this user account when logged into Cockpit as root and that the user selects "Reuse my password" when logging into Cockpit.
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It's nice to be able to get some graphical control over the Linux systems you administer even when they're thousands of miles away or lacking consoles. While I love working on the console, I like seeing a graph or a button now and then. Linux Cockpit provides a very useful interface for routine administrative tasks.
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Post updated Feb. 13, 11:30am ET
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Join the Network World communities on [Facebook][3] and [LinkedIn][4] to comment on topics that are top of mind.
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--------------------------------------------------------------------------------
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via: https://www.networkworld.com/article/3340038/linux/sitting-in-the-linux-cockpit.html
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作者：[Sandra Henry-Stocker][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.networkworld.com/author/Sandra-Henry_Stocker/
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[b]: https://github.com/lujun9972
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[1]: https://images.idgesg.net/images/article/2019/02/cockpit-activity-100787994-large.jpg
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[2]: https://cockpit-project.org/running.html
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[3]: https://www.facebook.com/NetworkWorld/
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[4]: https://www.linkedin.com/company/network-world
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@ -0,0 +1,87 @@
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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (How to use Linux Cockpit to manage system performance)
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[#]: via: (https://www.networkworld.com/article/3340038/linux/sitting-in-the-linux-cockpit.html)
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[#]: author: (Sandra Henry-Stocker https://www.networkworld.com/author/Sandra-Henry_Stocker/)
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如何使用 Linux Cockpit 来管理系统性能
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======
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Linux Cockpit 是一个基于 Web 界面的应用，它提供了对系统的图形化管理。看下它能够控制哪些。
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如果你还没有尝试过相对较新的 Linux Cockpit，你可能会对它所能做的一切感到惊讶。它是一个用户友好的基于 Web 的控制台，提供了一些非常简单的方法来管理 Linux 系统 —_通过**web**_。你可以通过一个非常简单的 web 来监控系统资源、添加或删除帐户、监控系统使用情况、关闭系统以及执行其他一些其他任务。它的设置和使用也非常简单。
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虽然许多 Linux 系统管理员将大部分时间花在命令行上，但使用 PuTTY 等工具访问远程系统并不总能提供最有用的命令输出。Linux Cockpit 提供了图形和易于使用的表单，来查看性能情况并对系统进行更改。
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Linux Cockpit 能让你查看系统性能的许多方面并进行配置更改，但任务列表可能取决于你使用的特定 Linux。任务分类包括以下内容：
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* 监控系统活动（CPU、内存、磁盘 IO 和网络流量） — **系统**
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* 查看系统日志条目 — **日志**
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* 查看磁盘分区的容量 — **存储**
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* 查看网络活动（发送和接收） — **网络**
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* 查看用户帐户 — **帐户**
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* 检查系统服务的状态 — **服务**
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* 提取已安装应用的信息 — **应用**
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* 查看和安装可用更新（如果以 root 身份登录）并在需要时重新启动系统 — **软件更新**
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* 打开并使用终端窗口 — **终端**
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某些 Linux Cockpit 安装还允许你运行诊断报告、转储内核、检查 SELinux（安全）设置和列表订阅。
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以下是 Linux Cockpit 显示的系统活动示例：
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![cockpit activity][1] Sandra Henry-Stocker
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Linux Cockpit 显示系统活动
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### 如何设置 Linux Cockpit
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在某些 Linux 发行版（例如，最新的 RHEL）中，Linux Cockpit 可能已经安装并可以使用。在其他情况下，你可能需要采取一些简单的步骤来安装它并使其可使用。
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例如，在 Ubuntu 上，这些命令应该可用：
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```
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$ sudo apt-get install cockpit
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$ man cockpit <== just checking
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$ sudo systemctl enable --now cockpit.socket
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$ netstat -a | grep 9090
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tcp6 0 0 [::]:9090 [::]:* LISTEN
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$ sudo systemctl enable --now cockpit.socket
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$ sudo ufw allow 9090
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```
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启用 Linux Cockpit 后，在浏览器中打开 **https:// <system-name-or-IP>:9090**。
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可以在 [Cockpit Project]][2] 中找到可以使用 Cockpit 的发行版列表以及安装说明。
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没有额外的配置，Linux Cockpit 将无法识别 **sudo** 权限。如果你被禁止使用 Cockpit 进行更改，你将会在你点击的按钮上看到一个红色的国际禁止标志。
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要使 sudo 权限有效，你需要确保用户位于 **/etc/group** 文件中的 **wheel**（RHEL）或 **adm** （Debian）组中，即服务器当以 root 用户身份登录 Cockpit 并且用户在登录 Cockpit 时选择“重用我的密码”时，已勾选了 Server Administrator。
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在你管理的系统在千里之外或者没有控制台时，能使用图形界面控制也不错。虽然我喜欢在控制台上工作，但我偶然也乐于见到图形或者按钮。Linux Cockpit 为日常管理任务提供了非常有用的界面。
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在 [Facebook][3] 和 [LinkedIn][4] 中加入 Network World 社区，对你喜欢的文章评论。
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--------------------------------------------------------------------------------
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via: https://www.networkworld.com/article/3340038/linux/sitting-in-the-linux-cockpit.html
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作者：[Sandra Henry-Stocker][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.networkworld.com/author/Sandra-Henry_Stocker/
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[b]: https://github.com/lujun9972
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[1]: https://images.idgesg.net/images/article/2019/02/cockpit-activity-100787994-large.jpg
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[2]: https://cockpit-project.org/running.html
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[3]: https://www.facebook.com/NetworkWorld/
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[4]: https://www.linkedin.com/company/network-world
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