{"id":9332,"date":"2025-08-12T22:58:10","date_gmt":"2025-08-13T05:58:10","guid":{"rendered":"http:\/\/blog.networkpresence.co\/?p=9332"},"modified":"2025-08-20T03:02:35","modified_gmt":"2025-08-20T10:02:35","slug":"how-to-ssh-to-older-rhel-6-hosts-from-modern-rhel-9-hosts","status":"publish","type":"post","link":"http:\/\/blog.networkpresence.co\/?p=9332","title":{"rendered":"How to SSH to Older RHEL 6 hosts from modern RHEL 9 hosts"},"content":{"rendered":"\n<p>Final command line is: <\/p>\n\n\n\n<p>OPENSSL_CONF=~\/.ssh\/openssl.cnf ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10 -o HostKeyAlgorithms=+ssh-rsa -o HostKeyAlgorithms=+ssh-dss -o PubkeyAcceptedAlgorithms=+ssh-dss -o PubkeyAcceptedAlgorithms=+ssh-rsa -o KexAlgorithms=+diffie-hellman-group-exchange-sha1 -o MACS=+hmac-sha1 -o PubkeyAcceptedKeyTypes=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa $USER@$HOST<\/p>\n\n\n\n<p>Where ~\/.ssh\/openssl.cnf is:<\/p>\n\n\n\n<p>.include \/etc\/ssl\/openssl.cnf<br>[openssl_init]<br>alg_section = evp_properties<br>[evp_properties]<br>rh-allow-sha1-signatures = yes<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Final command line is: OPENSSL_CONF=~\/.ssh\/openssl.cnf ssh -o StrictHostKeyChecking=no -o ConnectTimeout=10 -o HostKeyAlgorithms=+ssh-rsa -o HostKeyAlgorithms=+ssh-dss -o PubkeyAcceptedAlgorithms=+ssh-dss -o PubkeyAcceptedAlgorithms=+ssh-rsa -o KexAlgorithms=+diffie-hellman-group-exchange-sha1 -o MACS=+hmac-sha1 -o PubkeyAcceptedKeyTypes=+ssh-rsa -o PubkeyAcceptedAlgorithms=+ssh-rsa $USER@$HOST Where ~\/.ssh\/openssl.cnf is: .include \/etc\/ssl\/openssl.cnf[openssl_init]alg_section = evp_properties[evp_properties]rh-allow-sha1-signatures = yes<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[],"class_list":["post-9332","post","type-post","status-publish","format-standard","hentry","category-sales"],"_links":{"self":[{"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=\/wp\/v2\/posts\/9332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9332"}],"version-history":[{"count":3,"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=\/wp\/v2\/posts\/9332\/revisions"}],"predecessor-version":[{"id":9341,"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=\/wp\/v2\/posts\/9332\/revisions\/9341"}],"wp:attachment":[{"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9332"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.networkpresence.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}