{"id":4506,"date":"2023-08-16T07:00:00","date_gmt":"2023-08-16T04:00:00","guid":{"rendered":"https:\/\/www.dataplatform.gr\/?p=4506"},"modified":"2024-01-28T21:29:22","modified_gmt":"2024-01-28T18:29:22","slug":"pos-ftiachnoyme-cheirokinita-tin-epiko","status":"publish","type":"post","link":"https:\/\/www.dataplatform.gr\/en\/pos-ftiachnoyme-cheirokinita-tin-epiko\/","title":{"rendered":"How to manually set up SSH communication between Unix Servers for Oracle Grid Infrastructure and RAC"},"content":{"rendered":"<p>In this article we will see what to do if during the installation of Oracle Grid Infrastructure on Unix we get an error when we try to Setup SSH connectivity. <\/p>\n\n\n\n<p>When we select in the following tab the SSH connectivity and <em>Setup<\/em> for communication between nodes:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"802\" height=\"632\" src=\"https:\/\/www.dataplatform.gr\/wp-content\/uploads\/2022\/02\/racsn-10_2.png\" alt=\"\" class=\"wp-image-4452\" srcset=\"https:\/\/www.dataplatform.gr\/wp-content\/uploads\/2022\/02\/racsn-10_2.png 802w, https:\/\/www.dataplatform.gr\/wp-content\/uploads\/2022\/02\/racsn-10_2-300x236.png 300w, https:\/\/www.dataplatform.gr\/wp-content\/uploads\/2022\/02\/racsn-10_2-768x605.png 768w\" sizes=\"auto, (max-width: 802px) 100vw, 802px\" \/><\/figure>\n\n\n\n<p>After a while we get the following error:<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\" data-no-auto-translation=\"\"><code>ERROR &#91;INS-06003] Failed to setup passwordless SSH connectivity\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u03c0\u03ce\u03c2-\u03b4\u03b9\u03bf\u03c1\u03b8\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9-\u03c4\u03bf-\u03c3\u03c6\u03ac\u03bb\u03bc\u03b1-ins-06003\">How to fix error [INS-06003]<\/h2>\n\n\n\n<p>To establish connectivity between oracledev1 and oracledev2, we connect to each node and run the following.<\/p>\n\n\n\n<p>In the <em>oracledev1 <\/em>(node1):<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-translation=\"\" data-no-auto-translation=\"\">su oracle\ncd $HOME\nchmod 700 ~\/.ssh\n\/usr\/bin\/ssh-keygen -t rsa \ncd ~\/.ssh\ncat id_rsa.pub >> authorized_keys\nscp authorized_keys oracledev2:\/home\/oracle\/.ssh\/<\/pre>\n\n\n\n<p>In the <em>oracledev2 <\/em>(node2):<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-translation=\"\" data-no-auto-translation=\"\">su oracle\ncd $HOME\nchmod 700 ~\/.ssh\n\/usr\/bin\/ssh-keygen -t rsa \ncd ~\/.ssh\ncat id_rsa.pub >> authorized_keys\nscp authorized_keys oracledev1:\/home\/oracle\/.ssh\/<\/pre>\n\n\n\n<p>Then we choose no on the same tab <em>Setup <\/em>this time but the choice <em><strong>Test<\/strong><\/em>, but after we have first selected the checkbox <em><strong>Reuse private and public keys existing in the user home<\/strong><\/em> that we made manually.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u03c0\u03ce\u03c2-\u03b4\u03b9\u03bf\u03c1\u03b8\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9-\u03c4\u03bf-\u03c3\u03c6\u03ac\u03bb\u03bc\u03b1-ins-06006\">How to fix error [INS-06006]<\/h2>\n\n\n\n<p>If you get the following error:<\/p>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\" data-no-auto-translation=\"\"><code>&#91;INS-06006] Passwordless SSH connectivity not set up between the following nodes\n<\/code><\/pre>\n\n\n\n<p>It may be a bug that appears when we have OpenSSH 8.0 installed on the servers. So we check what version we have with the following:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-translation=\"\" data-no-auto-translation=\"\">ssh -V <\/pre>\n\n\n\n<pre class=\"wp-block-code\" data-no-translation=\"\" data-no-auto-translation=\"\"><code>OpenSSH_8.0p1, OpenSSL 1.1.1c FIPS  28 May 2019<\/code><\/pre>\n\n\n\n<p>After confirming that this is the problem to fix it we run the following steps:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\" data-no-translation=\"\" data-no-auto-translation=\"\"># Rename the original scp.\nmv \/usr\/bin\/scp \/usr\/bin\/scp.orig\n\n# Create a new file &lt;\/usr\/bin\/scp>.\nvi \/usr\/bin\/scp\n\n# Add the below line to the new created file &lt;\/usr\/bin\/scp>.\n\/usr\/bin\/scp.orig -T $*\n\n# Change the file permission.\nchmod 555 \/usr\/bin\/scp\n\nAfter installation:\n\nmv \/usr\/bin\/scp.orig \/usr\/bin\/scp<\/pre>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>In this article we will see what to do if during the installation of Oracle Grid Infrastructure on Unix we get an error when we try to Setup SSH connectivity. When we select in the following tab the SSH connectivity and Setup for the communication between the nodes: After a while the following error appears: How to fix [\u2026]<\/p>","protected":false},"author":1,"featured_media":704,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,16,34],"tags":[29,168,5,30,169],"class_list":["post-4506","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-databases","category-oracle-db","category-unix","tag-databases","tag-grid","tag-oracle-database","tag-rdbms","tag-ssh"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u03a0\u03ce\u03c2 \u03c6\u03c4\u03b9\u03ac\u03c7\u03bd\u03bf\u03c5\u03bc\u03b5 \u03c7\u03b5\u03b9\u03c1\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03b1 \u03c4\u03b7\u03bd 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