Possible to change email address in keypair?

I’ve created an RSA keypair that I used for SSH, and it includes my email address. (At the end of the public key.)

That part of an ssh key is just a comment. You can change it to anything you want at any time. It doesn’t even need to be the same on different servers. You can remove it as well. It is only there to help you or someone else figure out what to delete when you have many keys in an authorized_keys file and you need to revoke or change one of them.

ssh-rsa AAAAB3N....NMqKM= this_is_a_comment

When I create my keys with ssh-keygen I usually use a command like this to set a different comment. I don’t think the username@host is very useful. You can certainly put it whatever comment that you like that will be useful to you and any other admins to help identify who the key belongs to.

ssh-keygen ... -C YYYYMMDD_surname_givenname

Related Posts:

  1. SSH keypair generation: RSA or DSA?
  2. SSL Error: unable to get local issuer certificate
  3. When you use ‘badidea’ or ‘thisisunsafe’ to bypass a Chrome certificate/HSTS error, does it only apply for the current site? [closed]
  4. When you use ‘badidea’ or ‘thisisunsafe’ to bypass a Chrome certificate/HSTS error, does it only apply for the current site? [closed]
  5. Why does the URL http://a/%%30%30 crash Google Chrome?
  6. When you use ‘badidea’ or ‘thisisunsafe’ to bypass a Chrome certificate/HSTS error, does it only apply for the current site?
  7. Can an attacker use inspect element harmfully?
  8. Where does Internet Explorer store saved passwords?
  9. Infected Files – what to do [closed]
  10. WordPress 4.7.1 REST API still exposing users
  11. Should I escape wordpress functions like the_title, the_excerpt, the_content
  12. Why does WordPress need my private ssh key to update?
  13. When to use esc_html and when to use sanitize_text_field?
  14. Why does WordPress have more than one salt?
  15. What is the ideal setup to address security concerns?
  16. Will there be security updates for 3.1 once 3.2 is released?
  17. WordPress it’s cleaning a custom query_var to avoid sql injections?
  18. Can someone explain the use cases of esc_html?
  19. Tips for finding SPAM links injected into the_content
  20. Close a wordpress blog – keep site as it is but prevent hacks
  21. Is WordPress vulnerable to the httpoxy?
  22. Prevent setup-config.php page from appearing when host blocks database
  23. wp.getUsersBlogs XMLRPC Brute Force Attack/Vulnerability
  24. WordPress and Security
  25. Is there a security risk giving someone temporary access to my blog’s code?
  26. Is /wp-login.php?redirect_to[] exploitable?
  27. How to properly sanitize/secure a WP Query coming from the front end
  28. brute force attack even though it is limited by IP
  29. What should I do about hacked server?
  30. How do I authenticate WP users from a chrome extension?
  31. Website is being flooded [closed]
  32. Is there any point setting the keys and salts in wp-config.php?
  33. Auth cookie value security risk?
  34. Where to store OAuth 2.0 client id and secret?
  35. Security – Shortcode injection attack
  36. Registration Plugin – Recaptcha integration
  37. How can I safely use $_SERVER[‘REQUEST_URI’] to avoid XSS?
  38. How to combat flooding admin-ajax.php?
  39. Dangers to allowing Access-Control-Allow-Origin: * for Feeds only?
  40. Moving away from MD5: Where to declare the custom global $wp_hasher?
  41. Would it be dangerous to send all the wp_options to javascript file?
  42. Changing Table Prefixes – once done, am I good to go going forward?
  43. Should I disable directory listing for wp-includes?
  44. Safety side of storing emoji into database
  45. How can I safely hide the fact that my website runs on WordPress? [closed]
  46. How can I display nickname instead username in links
  47. My WordPress Websites are always under attack
  48. Is there value in using a wp_nonce for POST requests?
  49. How to hide easy access to my website temporarily?
  50. Can I Remove xmlrpc.php completely?
  51. Are un-sanitized theme options more vulnerable to malicious scripts than the theme editor?
  52. Secure WordPress: Change admin
  53. Changing the default header name
  54. How much should I worry about these messages?
  55. Is it safe to use a global wp nonce per user instead of a nonce per action?
  56. Wordfence detects change in wp-admin/includes/upgrade.php
  57. Uploading .webm format on WordPress results in security guidline breach and fail
  58. Any any insecure http:// URLs left in wordpress?
  59. Will there be security updates for WordPress 4.9.9
  60. White screen of death on admin pages after moving wp-config up two levels for security
  61. Can a WordPress administrator see other users’ passwords?
  62. Why my plugins are updating automatically?
  63. Any known bugs that could cause disappearance of the wp_users table?
  64. On new server, site got hacked, permissions a bit strange? Please help
  65. Privilege escalation bugs in 2.9?
  66. 404/500 error on content images if Referer header is from another domain [closed]
  67. Content-Security-Policy blocks WordPress check boxes from being activated
  68. Restrict Access without Creating Users
  69. Switching between security plugins is a risk?
  70. Prevent editor from adding script or form
  71. How to obfuscate wp-config.php or code
  72. Finding where a snippet of code is coming from
  73. wordpress admin security
  74. Remove hacked code – out of ideas! [closed]
  75. Why do people use “admin” username by default? [closed]
  76. Are major WordPress updates mandatory for security?
  77. i moved wp-config.php outside of public html and this broke my website
  78. Is it safe to use the basic administration with reduced rights for private member space
  79. WordPress Database Re-installed (Hacked)
  80. Verifying that I have fully removed a WordPress hack?
  81. WordPress Security tools
  82. Robots.txt file not updating
  83. Advice On How to Backup WordPress
  84. How can I stop other plugins from using my class’ sensitive methods?
  85. wordpress security (only one part of the site)
  86. What are WordPress Current Security Issues in 2017?
  87. wp-config.php moved above root results in no plugin updates
  88. Password-protect feed and make it usable in major aggregators
  89. Folder Permissions + Security Concerns
  90. Malware/Permission bug removal?
  91. Could a user account with a stolen password compromised entire WP site?
  92. how to find the way they hacked my WP site
  93. is this code properly secured
  94. Run a security scan on WordPress site that has .htaccess password [closed]
  95. nginx + wordpress: Best practices for configuring it to be secure, reliable, and fast? [closed]
  96. How to get real password (before encrypt) when register a user?
  97. How do you search for backdoors from the previous IT person?
  98. Why is SSH password authentication a security risk?
  99. Is wp-cron.php vulnerable to external attacks and how to protect it?
  100. How to address security vulnerabilities: LUCKY13, BEAST, and BREACH

Leave a Comment

deneme bonusu veren sitelerbahis casinomakrobetceltabetpinbahispolobetpolobet girişpinbahis girişmakrobet girişpulibet girişmobilbahis girişkolaybet giriş