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@ -1,8 +1,8 @@
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[#]: collector: (lujun9972)
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[#]: translator: (amwps290 )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: translator: (amwps290)
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[#]: reviewer: (wxy)
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[#]: publisher: (wxy)
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[#]: url: (https://linux.cn/article-11371-1.html)
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[#]: subject: (How to set up a TFTP server on Fedora)
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[#]: via: (https://fedoramagazine.org/how-to-set-up-a-tftp-server-on-fedora/)
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[#]: author: (Curt Warfield https://fedoramagazine.org/author/rcurtiswarfield/)
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@ -12,9 +12,9 @@
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![][1]
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**TFTP** 即简单文本传输协议，允许用户通过 [UDP][2] 协议在系统之间传输文件。默认情况下，协议使用的是 UDP 的 69 号端口。TFTP 协议广泛用于无盘设备的远程启动。因此，在你的本地网络建立一个 TFTP 服务器，这样你就可以进行 [Fedora 的安装][3]和其他无盘设备的一些操作，这将非常有趣。
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TFTP 即<ruby>简单文本传输协议<rt>Trivial File Transfer Protocol</rt></ruby>，允许用户通过 [UDP][2] 协议在系统之间传输文件。默认情况下，协议使用的是 UDP 的 69 号端口。TFTP 协议广泛用于无盘设备的远程启动。因此，在你的本地网络建立一个 TFTP 服务器，这样你就可以对 [安装好的 Fedora][3] 和其他无盘设备做一些操作，这将非常有趣。
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TFTP 仅仅能够从远端系统读取数据或者向远端系统写入数据。但它并没有列出远端服务器上文件的能力，同时也没有修改远端服务器的能力（译者注：感觉和前一句话矛盾）。用户身份验证也没有规定。 由于安全隐患和缺乏高级功能，TFTP 通常仅用于局域网（LAN）。
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TFTP 仅仅能够从远端系统读取数据或者向远端系统写入数据，而没有列出远端服务器上文件的能力。它也没提供用户身份验证。由于安全隐患和缺乏高级功能，TFTP 通常仅用于局域网内部（LAN）。
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### 安装 TFTP 服务器
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@ -23,23 +23,24 @@ TFTP 仅仅能够从远端系统读取数据或者向远端系统写入数据。
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```
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dnf install tftp-server tftp -y
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```
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上述的这条命令会为 [systemd][4] 在 _/usr/lib/systemd/system_ 目录下创建 _tftp.service_ 和 _tftp.socket_ 文件。
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上述的这条命令会在 `/usr/lib/systemd/system` 目录下为 [systemd][4] 创建 `tftp.service` 和 `tftp.socket` 文件。
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```
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/usr/lib/systemd/system/tftp.service
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/usr/lib/systemd/system/tftp.socket
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```
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接下来，将这两个文件复制到 _/etc/systemd/system_ 目录下，并重新命名。
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接下来，将这两个文件复制到 `/etc/systemd/system` 目录下，并重新命名。
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```
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cp /usr/lib/systemd/system/tftp.service /etc/systemd/system/tftp-server.service
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cp /usr/lib/systemd/system/tftp.socket /etc/systemd/system/tftp-server.socket
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```
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### 修改文件
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当你把这些文件复制和重命名后，你就可以去添加一些额外的参数，下面是 _tftp-server.service_ 刚开始的样子：
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当你把这些文件复制和重命名后，你就可以去添加一些额外的参数，下面是 `tftp-server.service` 刚开始的样子：
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```
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[Unit]
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@ -55,13 +56,13 @@ StandardInput=socket
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Also=tftp.socket
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```
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在 _[Unit]_ 部分添加如下内容：
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在 `[Unit]` 部分添加如下内容：
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```
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Requires=tftp-server.socket
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```
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修改 _[ExecStart]_ 行：
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修改 `[ExecStart]` 行：
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```
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ExecStart=/usr/sbin/in.tftpd -c -p -s /var/lib/tftpboot
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@ -69,13 +70,14 @@ ExecStart=/usr/sbin/in.tftpd -c -p -s /var/lib/tftpboot
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下面是这些选项的意思：
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* _**-c**_ 选项允许创建新的文件
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* _**-p**_ 选项用于指明在正常系统提供的权限检查之上没有其他额外的权限检查
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* _**-s**_ 建议使用该选项以确保安全性以及与某些引导 ROM 的兼容性，这些引导 ROM 在其请求中不容易包含目录名。
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* `-c` 选项允许创建新的文件
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* `-p` 选项用于指明在正常系统提供的权限检查之上没有其他额外的权限检查
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* `-s` 建议使用该选项以确保安全性以及与某些引导 ROM 的兼容性，这些引导 ROM 在其请求中不容易包含目录名。
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默认的上传和下载位置位于 _/var/lib/tftpboot_。
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默认的上传和下载位置位于 `/var/lib/tftpboot`。
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下一步，修改 `[Install]` 部分的内容
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下一步，修改 _[Install}_ 部分的内容
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```
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[Install]
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WantedBy=multi-user.target
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@ -84,7 +86,8 @@ Also=tftp-server.socket
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不要忘记保存你的修改。
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下面是 _/etc/systemd/system/tftp-server.service_ 文件的完整内容：
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下面是 `/etc/systemd/system/tftp-server.service` 文件的完整内容：
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```
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[Unit]
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Description=Tftp Server
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@ -109,11 +112,13 @@ systemctl daemon-reload
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```
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启动服务器：
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```
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systemctl enable --now tftp-server
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```
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要更改 TFTP 服务器允许上传和下载的权限，请使用此命令。注意 TFTP 是一种固有的不安全协议，因此不建议你在于其他人共享的网络上这样做。
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要更改 TFTP 服务器允许上传和下载的权限，请使用此命令。注意 TFTP 是一种固有的不安全协议，因此不建议你在与其他人共享的网络上这样做。
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```
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chmod 777 /var/lib/tftpboot
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```
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@ -127,14 +132,13 @@ firewall-cmd --reload
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### 客户端配置
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安装 TFTP 客户端
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```
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yum install tftp -y
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```
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运行 _tftp_ 命令连接服务器。下面是一个启用详细信息选项的例子：
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运行 `tftp` 命令连接服务器。下面是一个启用详细信息选项的例子：
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```
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[client@thinclient:~ ]$ tftp 192.168.1.164
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@ -147,11 +151,8 @@ tftp> quit
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[client@thinclient:~ ]$
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```
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记住，因为 TFTP 没有列出服务器上文件的能力，因此，在你使用 _get_ 命令之前需要知道文件的具体名称。
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记住，因为 TFTP 没有列出服务器上文件的能力，因此，在你使用 `get` 命令之前需要知道文件的具体名称。
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* * *
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_Photo by _[_Laika Notebooks_][5]_ on [Unsplash][6]_.
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--------------------------------------------------------------------------------
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@ -160,7 +161,7 @@ via: https://fedoramagazine.org/how-to-set-up-a-tftp-server-on-fedora/
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作者：[Curt Warfield][a]
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选题：[lujun9972][b]
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译者：[amwps290](https://github.com/amwps290)
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校对：[校对者ID](https://github.com/校对者ID)
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校对：[wxy](https://github.com/wxy)
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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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@ -1,57 +0,0 @@
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[#]: collector: (lujun9972)
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[#]: translator: (Morisun029)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Microsoft brings IBM iron to Azure for on-premises migrations)
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[#]: via: (https://www.networkworld.com/article/3438904/microsoft-brings-ibm-iron-to-azure-for-on-premises-migrations.html)
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[#]: author: (Andy Patrizio https://www.networkworld.com/author/Andy-Patrizio/)
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Microsoft brings IBM iron to Azure for on-premises migrations
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======
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Once again Microsoft shows it has shed its not-invented here attitude to support customers.
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Microsoft / Just_Super / Getty Images
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When Microsoft launched Azure as a cloud-based version of its Windows Server operating system, it didn't make it exclusively Windows. It also included Linux support, and in just a few years, the [number of Linux instances now outnumbers Windows instances][1].
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It's nice to see Microsoft finally shed that not-invented-here attitude that was so toxic for so long, but the company's latest move is really surprising.
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Microsoft has partnered with a company called Skytap to offer IBM Power9 instances on its Azure cloud service to run Power-based systems inside of the Azure cloud, which will be offered as Azure virtual machines (VM) along with the Xeon and Epyc server instances that it already offers.
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**Also read: [How to make hybrid cloud work][2]**
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Skytap is an interesting company. Founded by three University of Washington professors, it specializes in cloud migrations of older on-premises hardware, such as IBM System I or Sparc. It has a data center in its home town of Seattle, with IBM hardware running IBM's PowerVM hypervisor, plus some co-locations in IBM data centers in the U.S. and England.
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Its motto is to migrate fast, then modernize at your own pace. So, its focus is on helping legacy systems migrate to the cloud and then modernize the apps, which is what the alliance with Microsoft appears to be aimed at. Azure will provide enterprises with a platform to enhance the value of traditional applications without the major expense of rewriting for a new platform.
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Skytap is providing a preview of what’s possible when lifting and extending a legacy IBM i application using DB2 on Skytap and augmenting it with Azure IoT Hub. The application seamlessly spans old and new architectures, demonstrating there is no need to completely rewrite rock-solid IBM i applications to benefit from modern cloud capabilities.
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### Migrating to Azure cloud
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Under the deal, Microsoft will deploy Power S922 servers from IBM and deploy them in an undeclared Azure region. These machines can run the PowerVM hypervisor, which supports legacy IBM operating systems, as well as Linux.
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"Migrating to the cloud by first replacing older technologies is time consuming and risky," said Brad Schick, CEO of Skytap, in a statement. "Skytap’s goal has always been to provide businesses with a path to get these systems into the cloud with little change and less risk. Working with Microsoft, we will bring Skytap’s native support for a wide range of legacy applications to Microsoft Azure, including those dependent on IBM i, AIX, and Linux on Power. This will give businesses the ability to extend the life of traditional systems and increase their value by modernizing with Azure services."
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As Power-based applications are modernized, Skytap will then bring in DevOps CI/CD toolchains to accelerate software delivery. After moving to Skytap on Azure, customers will be able to integrate Azure DevOps, in addition to CI/CD toolchains for Power, such as Eradani and UrbanCode.
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These sound like first steps, which means there will be more to come, especially in terms of the app migration. If it's only in one Azure region, it sounds like they are testing and finding their legs with this project and will likely expand later this year or next.
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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/3438904/microsoft-brings-ibm-iron-to-azure-for-on-premises-migrations.html
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作者：[Andy Patrizio][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/Andy-Patrizio/
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[b]: https://github.com/lujun9972
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[1]: https://www.openwall.com/lists/oss-security/2019/06/27/7
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[2]: https://www.networkworld.com/article/3119362/hybrid-cloud/how-to-make-hybrid-cloud-work.html#tk.nww-fsb
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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 +1,57 @@
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[#]: collector: (lujun9972)
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[#]: translator: (Morisun029)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Microsoft brings IBM iron to Azure for on-premises migrations)
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[#]: via: (https://www.networkworld.com/article/3438904/microsoft-brings-ibm-iron-to-azure-for-on-premises-migrations.html)
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||||
[#]: author: (Andy Patrizio https://www.networkworld.com/author/Andy-Patrizio/)
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微软将 IBM 大型机迁移至 Azure
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======
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微软再次证明了其摒弃“非我发明”这一态度来支持客户。
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微软/ Just_Super / 盖蒂图片社
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当微软将 Azure 作为其 Windows 操作系统基于云计算的版本发布时，它并没有使其成为仅支持 Windows 系统的版本。 它还支持 Linux 系统，并且在短短几年内 [Linux 实例的数量现在已经超过了Windows 实例的数量][1].
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很高兴看到微软终于摆脱了这种长期以来非常有害的“非我发明”态度，该公司的最新举动确实令人惊讶。
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微软与一家名为 Skytap 的公司合作，为 Azure 上的 IBM Power9 处理器提供在 Azure 内部运行的基于 Power的系统，该系统将与其已经提供的 Xeon 和 Epy c服务器共同作为 Azure 的虚拟机（VM）。
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**推荐阅读: [如何使混合云工作][2]**
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Skytap 是一家有趣的公司。它由华盛顿大学的三位教授创立，专门研究旧式本地硬件的云迁移，如 IBM I 或 Sparc处理器的云迁移。该公司在其家乡西雅图拥有一个数据中心，以 IBM 的硬件运行IBM 的 Power 虚拟机管理程序，并且对在美国和英格兰的IBM 数据中心提供主机托管。
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||||
该公司的座右铭是快速迁移，然后按照自己的节奏进行现代化。因此，它专注于帮助一些企业将数据源系统迁移到云，然后实现应用程序的现代化，这也是它与微软合作的目的。 Azure 将通过为企业提供平台来提高传统应用程序的价值，而无需花费巨额费用重写一个新平台。
|
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Skytap 可以预览在 Skytap 上使用 DB2 提升和扩展原有 IBM i 应用程序以及通过 Azure 的物联网中心进行扩充时可能发生的情况。该应用程序无缝衔接新旧架构，并正明了不需要完全重写可靠的 IBM i 应用程序即可从现代云功能中受益。
|
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|
||||
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### 迁移到 Azure
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||||
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||||
根据协议，微软将把IBM 的Power S922 服务器部署在未声明的 Azure 区域。 这些机器可以运行 Power 虚拟机的管理程序，这些管理程序支持原有IBM 操作系统以及 Linux 系统。
|
||||
|
||||
Skytap 首席执行官布拉德•希克（Brad Schick）在一份声明中说道：“ 通过先替换旧技术到云上既耗时又冒险。” “ Skytap的愿景一直是通过一些小小的改变和较低的风险实现企业系统到云平台的迁移。与微软合作，我们将为各种旧版应用程序迁移到 Azure 提供本地支持，包括那些在 IBM i，AIX 和 Linux Power 上运行的程序。这将使企业能够通过使用 Azure 服务进行现代化来延长传统系统的寿命并增加其价值。”
|
||||
|
||||
随着基于 Power 应用程序的现代化，Skytap 随后将引入开发运维持续集成/持续交付工具链来加快软件的交付。 迁移到 Azure 上后，客户将能够集成 Azure 的开发运维，以及 Power 的持续集成/持续交付工具链，例如 Eradani 和 UrbanCode。
|
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|
||||
这些听起来像是迈出了第一步，但这意味着以后将会实现更多，尤其是在应用程序迁移方面。如果仅在一个 Azure 区域中，听起来好像它们正在对该项目进行测试和验证，并可能在今年晚些时候或明年进行扩展。
|
||||
|
||||
--------------------------------------------------------------------------------
|
||||
|
||||
via: https://www.networkworld.com/article/3438904/microsoft-brings-ibm-iron-to-azure-for-on-premises-migrations.html
|
||||
|
||||
作者：[Andy Patrizio][a]
|
||||
选题：[lujun9972][b]
|
||||
译者：[Morisun029](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://www.networkworld.com/author/Andy-Patrizio/
|
||||
[b]: https://github.com/lujun9972
|
||||
[1]: https://www.openwall.com/lists/oss-security/2019/06/27/7
|
||||
[2]: https://www.networkworld.com/article/3119362/hybrid-cloud/how-to-make-hybrid-cloud-work.html#tk.nww-fsb
|
||||
[3]: https://www.facebook.com/NetworkWorld/
|
||||
[4]: https://www.linkedin.com/company/network-world
|
||||
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Block a user