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To be able to connect to a ESXi host using putty first you need to enable SSH on that host: <a href="http://www.thomasmaurer.ch/2011/08/enable-ssh-on-esxi-5-via-vsphere-client/" rel="ugc">http://www.thomasmaurer.ch/2011/08/enable-ssh-on-esxi-5-via-vsphere-client/</a>
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see my EE Article, Tutorial with step by step instructions and screenshots<br />
<br />
<a href="https://www.experts-exchange.com/Software/VMWare/A_11651.html" rel="ugc">HOW TO: Enable SSH Remote Access on a VMware vSphere Hypervisor 5.1 (ESXi 5.1)</a>
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I cannot connect to the server in vmware server..<br />
using putty error is attached.<br />
<a href="https://filedb.experts-exchange.com/incoming/2013/07_w27/664266/p1.png" target="_blank" class="file-inline" title="p1 (35 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>p1.png</a>
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p1.png

I cannot connect to the server in vmware server..
using putty error is attached.

To be able to connect to a ESXi host using putty first you need to enable SSH on that host: http://www.thomasmaurer.ch/2011/08/enable-ssh-on-esxi-5-via-vsphere-client/

see my EE Article, Tutorial with step by step instructions and screenshots

HOW TO: Enable SSH Remote Access on a VMware vSphere Hypervisor 5.1 (ESXi 5.1) (https://www.experts-exchange.com/Software/VMWare/A_11651.html)

vmserver and putty

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.