{"id":991,"date":"2019-11-14T09:59:15","date_gmt":"2019-11-14T15:59:15","guid":{"rendered":"https:\/\/packitforwarding.com\/?p=991"},"modified":"2019-11-14T09:59:16","modified_gmt":"2019-11-14T15:59:16","slug":"asa-scp-permission-denied","status":"publish","type":"post","link":"https:\/\/packitforwarding.com\/index.php\/2019\/11\/14\/asa-scp-permission-denied\/","title":{"rendered":"Packet Fragment: ASA SCP Permission Denied"},"content":{"rendered":"\n<p>Today I was configuring a new ASA in my lab environment. I had also fired up a brand new Ubuntu VM to be my SCP server. When I tried to copy files from Ubuntu to the ASA, it would give me the error &#8220;permission denied&#8221;. Of course, this sent me looking to see why my recently set password was denied.<\/p>\n\n\n\n<p>At first, I did the normal things like resetting my password and verifying that I could SSH to the box from another host. When I found that the ASA was the only thing that couldn&#8217;t perform an SCP from the host, I was perplexed. My Linux skills kicked in and I looked at \/var\/log\/auth.log to see what Ubuntu was seeing.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nNov 14 09:41:12 user-PC sshd&#x5B;2242]: Unable to negotiate with 192.168.250.1 port 47601: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1 &#x5B;preauth]\n<\/pre><\/div>\n\n\n<p>Bingo, the smoking gun has been found. I had forgotten that by default the ASA is configured with SSH using DH group 1. OpenSSH on Ubuntu requires a higher level of encryption now. The fix was to change the ASA to use DH group 14.<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nciscoasa (config)# ssh key-exchange group dh-group14-sha1\n<\/pre><\/div>\n\n\n<p>Hopefully, this will help someone avoid wasting time like I did this morning on something silly. Oh and go ahead and add the ssh key-exchange command to your routine configuration while you&#8217;re at it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today I was configuring a new ASA in my lab environment. I had also fired up a brand new Ubuntu VM to be my SCP server. When I tried to copy files from Ubuntu to the ASA, it would give me the error &#8220;permission denied&#8221;. Of course, this sent me looking to see why my [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":992,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Packet Fragment: ASA SCP Permission Denied #ciscochampion #labeveryday","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[88,139],"tags":[142],"class_list":["post-991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-packet-fragment","tag-asa"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Packet Fragment: ASA SCP Permission Denied -<\/title>\n<meta name=\"description\" content=\"When you run into permission denied as an error on the ASA it may not be a password problem. 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IP subnets are used to divide a network into smaller broadcast domains. Communication within an subnet is done directly from one host to another using ARP for resolving the MAC address of the host. When a\u2026","rel":"","context":"In &quot;Blog&quot;","block_context":{"text":"Blog","link":"https:\/\/packitforwarding.com\/index.php\/category\/blog\/"},"img":{"alt_text":"Photo by Francis Seura from Pexels","src":"https:\/\/i0.wp.com\/packitforwarding.com\/wp-content\/uploads\/2018\/09\/pexels-photo-802412.jpeg?fit=640%2C425&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/packitforwarding.com\/wp-content\/uploads\/2018\/09\/pexels-photo-802412.jpeg?fit=640%2C425&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/packitforwarding.com\/wp-content\/uploads\/2018\/09\/pexels-photo-802412.jpeg?fit=640%2C425&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":997,"url":"https:\/\/packitforwarding.com\/index.php\/2019\/11\/27\/windows-blocking-a-ssid\/","url_meta":{"origin":991,"position":3},"title":"Packet Fragment: Windows Blocking an SSID","author":"Ben Story","date":"November 27, 2019","format":false,"excerpt":"Recently I got brought in on a ticket where the colleague couldn't connect to our wireless network. 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