{"id":2148,"date":"2016-12-02T17:15:10","date_gmt":"2016-12-02T15:15:10","guid":{"rendered":"http:\/\/www.systemcodegeeks.com\/?p=2148"},"modified":"2016-11-30T19:20:02","modified_gmt":"2016-11-30T17:20:02","slug":"configuring-snmp-vmware-esxi","status":"publish","type":"post","link":"https:\/\/www.systemcodegeeks.com\/virtualization\/vmware\/configuring-snmp-vmware-esxi\/","title":{"rendered":"Configuring SNMP in VMware ESXi"},"content":{"rendered":"<p>In this article, I&#8217;ll review the necessary information for how to configure SNMP v1 options in a VMware vSphere ESXi host. If you also need to configure SNMP in a vCenter Server Appliance (vCSA), please check out my previous article: <strong><em><a href=\"https:\/\/www.systemcodegeeks.com\/virtualization\/vmware\/configuring-snmp-vmware-vcsa\/\">Configuring SNMP in a vCSA<\/a><\/em><\/strong><\/p>\n<p>If you&#8217;re already familiar with SNMP, and you&#8217;ve already enabled SSH on your ESXi host, skip ahead to <strong><a href=\"#step4\">Configuring ESXi SNMP Options<\/a><\/strong>.<\/p>\n<h2>1. SNMP Introduction<\/h2>\n<p>SNMP (Simple Network Management Protocol), as the name already indicates, is a network protocol (particularly an &#8220;application layer&#8221; protocol in the OSI networking model). \u00a0In a nutshell, it&#8217;s used to &#8220;get&#8221; information from networked devices and\/or to &#8220;send&#8221; information from one networked device to another.<\/p>\n<p>&#8220;Why would I use this protocol?&#8221; you might ask. \u00a0There are way too many examples to name, but I&#8217;ll list a couple of basic examples to help you become more familiar with why you might\u00a0use SNMP.<\/p>\n<p><em>Example 1:<\/em> \u00a0Where I work, I utilize a free piece of software called <strong><em><a href=\"https:\/\/www.spiceworks.com\/\">Spiceworks<\/a><\/em><\/strong>. \u00a0One of the features of this software is that it can query various devices on our network (switches, firewall, printers, etc) in order to &#8220;get&#8221; information about them. \u00a0Spiceworks utilizes SNMP to query all of the available information from each networked device that it communicates with.<\/p>\n<p><em>Example 2:<\/em> \u00a0We also have a centralized syslog server (<em><strong><a href=\"http:\/\/www.kiwisyslog.com\/products\/kiwi-syslog-server\/product-overview.aspx\">Kiwi <\/a><\/strong><\/em>) that we &#8220;send&#8221; device information to; mostly event logs from our switches and firewalls.<\/p>\n<p>Now that I&#8217;ve reviewed what SNMP is, and you&#8217;ve seen a couple of examples for how it can be used, let&#8217;s look at how to configure SNMP in a VMware ESXi host. \u00a0The first thing you need to do is verify that you have appropriate access to the server (which will require enabling SSH).<\/p>\n<h2>2. Verify that SSH is enabled<\/h2>\n<p>There are three ways to accomplish this, and I&#8217;ll cover all three methods:<br \/>\na. Direct console access (also known as DCUI)<br \/>\nb. vSphere Client (also known as the &#8220;vSphere thick client&#8221;)<br \/>\nc. vSphere Web Client (<strong><em>IF\u00a0<\/em><\/strong> you have a vCenter server deployed)<\/p>\n<h3>2.1 Enable SSH via Direct Console UI<\/h3>\n<h4>2.1.1. Main Console<\/h4>\n<p>To enable SSH via direct console access, you will need to either physically access the server, or use an out-of-band management solution (such as HP iLO, Dell iDRAC, KVM-Over-IP, etc). Once you have direct console access, the first thing you need to do is press F2 (&#8220;Customize System\/View Logs&#8221;) at the main console window. Refer to Figure 1a below:<\/p>\n<figure id=\"attachment_2151\" aria-describedby=\"caption-attachment-2151\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_01.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2151\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_01.jpg\" alt=\"Figure 1a: Main ESXi console window\" width=\"860\" height=\"656\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_01.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_01-300x229.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_01-768x586.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2151\" class=\"wp-caption-text\">Figure 1a: Main ESXi console window<\/figcaption><\/figure>\n<p><span style=\"text-decoration: underline;\"><em>NOTE:<\/em><\/span>\u00a0 If your screen does not look like the one in Figure 1a above, you are likely seeing an &#8220;ESXi Shell&#8221; window (Refer to Figure 1b below). If your screen looks like Figure 1b below, press Alt+F2 to switch back to the DCUI window.<\/p>\n<figure id=\"attachment_2189\" aria-describedby=\"caption-attachment-2189\" style=\"width: 628px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_esxi_shell_01.jpg\"><img decoding=\"async\" class=\"wp-image-2189 size-full\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_esxi_shell_01-e1480516023629.jpg\" alt=\"Figure 1b: ESXi Shell\" width=\"628\" height=\"336\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_esxi_shell_01-e1480516023629.jpg 628w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_esxi_shell_01-e1480516023629-300x160.jpg 300w\" sizes=\"(max-width: 628px) 100vw, 628px\" \/><\/a><figcaption id=\"caption-attachment-2189\" class=\"wp-caption-text\">Figure 1b: ESXi Shell<\/figcaption><\/figure>\n<h4>2.1.2. Authenticating the Root Account<\/h4>\n<p>As soon as you press F2, you will be prompted to authenticate (the default admin account is &#8220;root&#8221;). Refer to Figure 2 below:<\/p>\n<figure id=\"attachment_2152\" aria-describedby=\"caption-attachment-2152\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_02.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2152\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_02.jpg\" alt=\"Figure 2: Authenticating the root account\" width=\"860\" height=\"649\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_02.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_02-300x226.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_02-768x580.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2152\" class=\"wp-caption-text\">Figure 2: Authenticating the root account<\/figcaption><\/figure>\n<h4>2.1.3. Access &#8220;Troubleshooting Options&#8221;<\/h4>\n<p>Once you&#8217;ve successfully authenticated, you&#8217;ll navigate to &#8220;Troubleshooting Options&#8221;. Refer to Figure 3 below:<\/p>\n<figure id=\"attachment_2153\" aria-describedby=\"caption-attachment-2153\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_03.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2153\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_03.jpg\" alt=\"Figure 3: Troubleshooting options\" width=\"860\" height=\"651\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_03.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_03-300x227.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_03-768x581.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2153\" class=\"wp-caption-text\">Figure 3: Troubleshooting options<\/figcaption><\/figure>\n<h4>2.1.4. Enable SSH<\/h4>\n<p>Now you just need to verify that SSH is enabled. If it <em>is<\/em> enabled, you will see &#8220;Disable SSH&#8221; in the menu on the left, and &#8220;SSH is Enabled&#8221; on the right side of the console window. If it&#8217;s not enabled, highlight &#8220;Enable SSH&#8221; in the menu at the left and press Enter. Refer to Figure 4 below:<\/p>\n<figure id=\"attachment_2154\" aria-describedby=\"caption-attachment-2154\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_04.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2154\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_04.jpg\" alt=\"Figure 4: Enable SSH\" width=\"860\" height=\"653\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_04.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_04-300x228.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_direct_console_04-768x583.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2154\" class=\"wp-caption-text\">Figure 4: Enable SSH<\/figcaption><\/figure>\n<h3>2.2. Enable SSH via the vSphere Client<\/h3>\n<h4>2.2.1. Authenticating the Root Account<\/h4>\n<p>To enable SSH via the vSphere Client, open the application, enter the server name or IP, then authenticate the root account. Refer to Figure 5 below:<\/p>\n<figure id=\"attachment_2167\" aria-describedby=\"caption-attachment-2167\" style=\"width: 428px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_01.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2167\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_01.jpg\" alt=\"Figure 5: Authenticating the root account\" width=\"428\" height=\"579\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_01.jpg 428w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_01-222x300.jpg 222w\" sizes=\"(max-width: 428px) 100vw, 428px\" \/><\/a><figcaption id=\"caption-attachment-2167\" class=\"wp-caption-text\">Figure 5: Authenticating the root account<\/figcaption><\/figure>\n<h4>2.2.2. Configuring &#8220;Services&#8221; Properties (Part 1)<\/h4>\n<p>Once you&#8217;re authenticated, the host should already be selected in the far left pane. Click the &#8220;Configuration&#8221; tab and select &#8220;Security Profile&#8221; under the &#8220;Software&#8221; section, then click &#8220;Properties&#8221; to the right of &#8220;Services&#8221;. Refer to Figure 6 below:<\/p>\n<figure id=\"attachment_2168\" aria-describedby=\"caption-attachment-2168\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_02.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2168\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_02.jpg\" alt=\"Figure 6: Security Profile --&gt; Services --&gt; Properties\" width=\"860\" height=\"628\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_02.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_02-300x219.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_02-768x561.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2168\" class=\"wp-caption-text\">Figure 6: Security Profile &#8211;&gt; Services &#8211;&gt; Properties<\/figcaption><\/figure>\n<h4>2.2.3. Configuring &#8220;Services&#8221; Properties (Part 2)<\/h4>\n<p>Once you&#8217;ve clicked &#8220;Properties&#8221;, a new &#8220;Services Properties&#8221; window will open. Select &#8220;SSH&#8221; and click the &#8220;Options&#8221; button. Refer to Figure 7 below:<\/p>\n<figure id=\"attachment_2169\" aria-describedby=\"caption-attachment-2169\" style=\"width: 657px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_03.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2169\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_03.jpg\" width=\"657\" height=\"691\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_03.jpg 657w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_03-285x300.jpg 285w\" sizes=\"(max-width: 657px) 100vw, 657px\" \/><\/a><figcaption id=\"caption-attachment-2169\" class=\"wp-caption-text\">Figure 7: Services Properties<\/figcaption><\/figure>\n<h4>2.2.4. Configuring SSH Options<\/h4>\n<p>Once you&#8217;ve clicked &#8220;Options&#8221;, a new &#8220;SSH Options&#8221; window will open. Make sure that the &#8220;Start and stop with host&#8221; radio button is selected, and if the current status of the service is not &#8220;Running&#8221;, you&#8217;ll need to click the &#8220;Start&#8221; button. Notice that when the service <em>is<\/em> running, the Start button will be greyed out. Refer to Figure 8 below:<\/p>\n<figure id=\"attachment_2170\" aria-describedby=\"caption-attachment-2170\" style=\"width: 506px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_04.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2170\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_04.jpg\" alt=\"Figure 8: Configuring SSH options\" width=\"506\" height=\"338\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_04.jpg 506w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_client_04-300x200.jpg 300w\" sizes=\"(max-width: 506px) 100vw, 506px\" \/><\/a><figcaption id=\"caption-attachment-2170\" class=\"wp-caption-text\">Figure 8: SSH Options<\/figcaption><\/figure>\n<h3>2.3. Enable SSH via the vSphere Web Client<\/h3>\n<h4>2.3.1. Authenticating the Administrator Account<\/h4>\n<p><span style=\"text-decoration: underline;\"><em>NOTE:<\/em><\/span>\u00a0 This option is only possible if you&#8217;ve deployed a vCenter server in your VMware environment.<\/p>\n<p>Login to the vSphere Web Client console by navigating to the following address via a web browser (substituting &#8220;<em>&lt;fqdn&gt;<\/em>&#8221; with your server&#8217;s appropriate fully qualified domain name):<\/p>\n<pre class=\"brush:plain\">https:\/\/&lt;fqdn&gt;\/vsphere-client\/<\/pre>\n<p>Login with the appropriate admin credentials. Refer to the example logon screen in Figure 9 below:<\/p>\n<figure id=\"attachment_2172\" aria-describedby=\"caption-attachment-2172\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_01.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2172\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_01.jpg\" alt=\"Figure 9: vSphere Web Client logon screen\" width=\"860\" height=\"622\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_01.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_01-300x217.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_01-768x555.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2172\" class=\"wp-caption-text\">Figure 9: vSphere Web Client logon screen<\/figcaption><\/figure>\n<h4>2.3.2. Access the appropriate ESXi host<\/h4>\n<p>Once you&#8217;ve successfully authenticated, you&#8217;ll be at the &#8220;Home&#8221; page of the web console. Click on &#8220;Hosts and Clusters&#8221; from the left menu or from the main navigation pane (either one will work; they both launch the same navigation options). Refer to Figure 10 below:<\/p>\n<figure id=\"attachment_2173\" aria-describedby=\"caption-attachment-2173\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_02.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2173\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_02.jpg\" alt=\"Figure 10: Select &quot;Hosts and Clusters&quot;\" width=\"860\" height=\"441\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_02.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_02-300x154.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_02-768x394.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2173\" class=\"wp-caption-text\">Figure 10: Select &#8220;Hosts and Clusters&#8221;<\/figcaption><\/figure>\n<h4>2.3.3. Configuring &#8220;Services&#8221; Properties<\/h4>\n<p>After you select &#8220;Hosts and Clusters&#8221;, you&#8217;ll need to drill down into your datacenter and select your appropriate ESXi host (notice that mine is selected in the left side navigation menu in the example screenshot below). Then click the &#8220;Manage&#8221; tab, choose &#8220;Settings&#8221;, then &#8220;Security Profile&#8221; under the &#8220;System&#8221; menu. You&#8217;ll see &#8220;Services&#8221; in the main navigation pane on the right. Click the &#8220;Edit&#8221; button to the right of that. Refer to Figure 11 below:<\/p>\n<figure id=\"attachment_2174\" aria-describedby=\"caption-attachment-2174\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_03.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2174\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_03.jpg\" alt=\"Figure 11: Configuring &quot;Services&quot; properties\" width=\"860\" height=\"691\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_03.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_03-300x241.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_03-768x617.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2174\" class=\"wp-caption-text\">Figure 11: Configuring &#8220;Services&#8221; properties<\/figcaption><\/figure>\n<h4>2.3.4. Configuring SSH Options<\/h4>\n<p>Once you&#8217;ve clicked &#8220;Edit&#8221;, a new &#8220;Edit Security Profile&#8221; window will open. Select &#8220;SSH&#8221; (make note of whether the service is &#8220;Running&#8221; or &#8220;Stopped&#8221;) and choose &#8220;Start and stop with host&#8221; from &#8220;Startup Policy&#8221;. If the service isn&#8217;t running, click the &#8220;Start&#8221; button. Notice that when the service <em>is<\/em> running, the Start button will be greyed out. Refer to Figure 12 below:<\/p>\n<figure id=\"attachment_2175\" aria-describedby=\"caption-attachment-2175\" style=\"width: 726px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_04.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2175\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_04.jpg\" alt=\"Figure 12: Configuring SSH options\" width=\"726\" height=\"507\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_04.jpg 726w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_vsphere_web_client_04-300x210.jpg 300w\" sizes=\"(max-width: 726px) 100vw, 726px\" \/><\/a><figcaption id=\"caption-attachment-2175\" class=\"wp-caption-text\">Figure 12: Configuring SSH options<\/figcaption><\/figure>\n<p>Once SSH has been successfully enabled, you&#8217;re ready to access the server via SSH.<\/p>\n<h2>3. Access your ESXi host via SSH<\/h2>\n<p><a name=\"step4\"><\/a>I won&#8217;t go into detail about\u00a0how to SSH into your server, but I&#8217;ll at least mention the free SSH client that I use:\u00a0<em><strong><a href=\"http:\/\/www.chiark.greenend.org.uk\/~sgtatham\/putty\/\">PuTTY<\/a><\/strong>.<\/em><\/p>\n<p>Now you&#8217;re ready to start configuring the SNMP options!<\/p>\n<h2>4. Configuring ESXi SNMP Options<\/h2>\n<p>There are various SNMP options that can be configured, including ones that utilize extra security options, but as stated in the introduction of this article, I&#8217;ll be covering the options involving SNMP v1.<\/p>\n<p><span style=\"text-decoration: underline;\"><em>NOTE:<\/em><\/span> \u00a0SNMP v1 (instead of v2 or v3) is the easiest to setup because it only requires the most basic of communities (&#8220;<em>public&#8221;<\/em>). \u00a0However, it&#8217;s the least secure version of SNMP since it doesn&#8217;t utilize authentication\u00a0or any privacy controls. \u00a0With that said, if someone with true hacking skills has access to your network, SNMP configurations will likely be one of the least of your concerns.<\/p>\n<p>To check the current SNMP configuration at any time (either before or after making changes), you can type:<\/p>\n<pre class=\"brush:plain\">esxcli system snmp get<\/pre>\n<p>You will see output similar to what&#8217;s displayed in Figure 13 below:<\/p>\n<figure id=\"attachment_2191\" aria-describedby=\"caption-attachment-2191\" style=\"width: 546px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_01.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2191\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_01.jpg\" alt=\"Figure 13: Current SNMP configuration info\" width=\"546\" height=\"456\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_01.jpg 546w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_01-300x251.jpg 300w\" sizes=\"(max-width: 546px) 100vw, 546px\" \/><\/a><figcaption id=\"caption-attachment-2191\" class=\"wp-caption-text\">Figure 13: Current SNMP configuration info<\/figcaption><\/figure>\n<h3>4.1 Create an SNMP community<\/h3>\n<p>Before SNMP can even be enabled, the first thing you\u00a0need to do is create a &#8220;community&#8221;. \u00a0 Since we&#8217;re using SNMP v1 in this article, we&#8217;ll create the default community of &#8220;public&#8221;. \u00a0To do this, type the following command:<\/p>\n<pre class=\"brush:plain\">esxcli system snmp set -c public<\/pre>\n<h3>4.2 Configure an SNMP trap<\/h3>\n<p>In the environment where I work, we have our ESXi hosts configured to send SNMP trap data to our Kiwi syslog server. \u00a0If you&#8217;d like to configure a trap for your ESXi host\u00a0to send its SNMP data to, this can be done by typing the following command (substitute &lt;trap_server_ip&gt; with your appropriate trap server&#8217;s IP):<\/p>\n<pre class=\"brush:plain\">esxcli system snmp set -t &lt;trap_server_ip&gt;@162\/public<\/pre>\n<p><span style=\"text-decoration: underline;\"><em>NOTE 1:<\/em><\/span> \u00a0SNMP uses the default UDP port 161 for general SNMP messages and UDP port 162 for SNMP trap messages.<\/p>\n<p><span style=\"text-decoration: underline;\"><em>NOTE 2:<\/em><\/span> \u00a0You can add multiple targets as well, separated by commas. \u00a0Here&#8217;s an example:<\/p>\n<pre class=\"brush:plain\">esxcli system snmp set -t &lt;server_ip_1&gt;@162\/public,&lt;server_ip_2&gt;@162\/public<\/pre>\n<h3>4.3 Configure the logging level<\/h3>\n<p><span style=\"text-decoration: underline;\"><em>NOTE:<\/em><\/span> \u00a0There are four levels of logging to choose from: \u00a0<em>debug|info|warning|error<\/em>\u00a0\u00a0(&#8220;debug&#8221; has the highest level of verbosity, and &#8220;error&#8221; has the lowest).<\/p>\n<p>Set the logging level using the following command:<\/p>\n<pre class=\"brush:plain\">esxcli system snmp set -l debug<\/pre>\n<h3>4.4 Enable SNMP<\/h3>\n<p>It&#8217;d be crazy to configure all of this and not have SNMP\u00a0enabled, so make sure that it&#8217;s enabled\u00a0by typing the following command:<\/p>\n<pre class=\"brush:plain\">esxcli system snmp set -e true<\/pre>\n<h3>4.5 Send a test trap<\/h3>\n<p>The last thing left to do is to send a test trap to verify that the agent is configured correctly:<\/p>\n<pre class=\"brush:plain\">esxcli system snmp test<\/pre>\n<p>You should see something similar to this if it was successful (see Figure 14 below):<\/p>\n<figure id=\"attachment_2192\" aria-describedby=\"caption-attachment-2192\" style=\"width: 860px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_02.jpg\"><img decoding=\"async\" class=\"size-full wp-image-2192\" src=\"http:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_02.jpg\" alt=\"Figure 14: Successful SNMP test trap message\" width=\"860\" height=\"178\" srcset=\"https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_02.jpg 860w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_02-300x62.jpg 300w, https:\/\/www.systemcodegeeks.com\/wp-content\/uploads\/2016\/11\/scg_shuey_002_csesxi_ssh_snmp_02-768x159.jpg 768w\" sizes=\"(max-width: 860px) 100vw, 860px\" \/><\/a><figcaption id=\"caption-attachment-2192\" class=\"wp-caption-text\">Figure 14: Successful SNMP test trap message<\/figcaption><\/figure>\n<h2>5. Summary<\/h2>\n<p>As you&#8217;ve hopefully learned from this article, first-time\u00a0SNMP configuration options in ESXi are not as hard or as complicated as they\u00a0may initially seem. \u00a0It\u00a0does however require understanding the basics of what SNMP can be used for, how to effectively manage\u00a0your vSphere ESXi server via SSH and the DCUI console, and how to properly leverage commands from the SSH shell in order to successfully configure ESXi SNMP options.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this article, I&#8217;ll review the necessary information for how to configure SNMP v1 options in a VMware vSphere ESXi host. If you also need to configure SNMP in a vCenter Server Appliance (vCSA), please check out my previous article: Configuring SNMP in a vCSA If you&#8217;re already familiar with SNMP, and you&#8217;ve already enabled &hellip;<\/p>\n","protected":false},"author":34,"featured_media":207,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[83,78,53,81,80],"class_list":["post-2148","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vmware","tag-esxi","tag-snmp","tag-ssh","tag-vcenter","tag-vsphere"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Configuring SNMP in VMware ESXi - System Code Geeks - 2026<\/title>\n<meta name=\"description\" content=\"In this article, I&#039;ll review the necessary information for how to configure SNMP v1 options in a VMware vSphere ESXi host. 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