What’s the difference between IP address 0.0.0.0 and 127.0.0.1?

The only thing is that you’re not saying “all addresses should have access” — that’s done in your firewall(s) and/or the server software and/or other security layers like tcpwrappers.

0.0.0.0, in this context, means “all IP addresses on the local machine” (in fact probably, “all IPv4 addresses on the local machine”). So, if your webserver machine has two IP addresses, 192.168.1.1 and 10.1.2.1, and you allow a webserver daemon like apache to listen on 0.0.0.0, it will be reachable at both of those IP addresses. But only to what can contact those IP addresses and the web port(s).

Note that, in a different context (routing) 0.0.0.0 usually means the default route (the route to “the rest of” the internet, aside from routes in your local network etc.).

Related Posts:

  1. How to access my site using IP Address? [closed]
  2. How to fix IP address issues after server migration
  3. block IP wordrpess for the next X minutes
  4. What is the difference between unicast, anycast, broadcast and multicast traffic?
  5. What is this IP address: 169.254.169.254?
  6. Why is it not possible to fake an IP address?
  7. What is IP address ‘::1’?
  8. How can I convert IPV6 address to IPV4 address?
  9. Is there a way to get all IP addresses of youtube to block it with Windows Firewall?
  10. Ping – Request timed out
  11. How to get the client IP address in PHP
  12. Validating IPv4 addresses with regexp
  13. Port 80 is being used by SYSTEM (PID 4), what is that?
  14. Finding local IP addresses using Python’s stdlib
  15. How to get client’s IP address using JavaScript?
  16. how to ping ip addresses in php and give results
  17. What does “Can not obtain ownership information” in Netstat -ab mean?
  18. How to find Port number of IP address?
  19. IP address whitelist to update WordPress core and plugins
  20. Relative or dynamic site url possible?
  21. Limiting sessions to one IP at a time
  22. IP address character limit
  23. How do I turn off wordpress comments ability to capture a users ip address?
  24. Broken CSS after changing the site URL
  25. How to set ipv6 address as siteurl?
  26. Does WP show me if I’m logged in from multiple locations?
  27. Is there any reason only 1 (my) IP would be added to this table using $wpdn->insert?
  28. Check if a user already voted [closed]
  29. Display posts if specific country
  30. Is it possible to store visitors IPs in wp_postmeta table?
  31. Is it possible to get the currently logged in admin’s IP?
  32. Store brute-force IP addresses
  33. Restricting user login by IP address
  34. Limit access to wp_admin
  35. Plugin for limiting user registration based on ip with expiry period?
  36. How do I test my localhost WordPress project with VirtualBoxVM?
  37. How can I hide the IP of registered commentators?
  38. Restricting access to a single MultiSite site based on IP — possible?
  39. WordPress Multisite domain mapping with different IPs
  40. Blacklist IP After Using WordPress Plugin Detector?
  41. Dynamically update Site/WordPress Address
  42. Limiting sessions to one IP at a time
  43. How can I run a custom shortcode function on a live site and only run if the viewer is a specific machine?
  44. Block IP Addresses using Code [closed]
  45. Comment IP Plugin – Fixing onfocus=’this.select()’
  46. How can I add IP address to my post?
  47. Change of IP Address
  48. IP addresses to block to stop WP auto-update?
  49. How do I limit access to wp-admin to an IP range?
  50. Show a different link based on IP
  51. redirect to a child theme based on the town of Internet users in france with the verification of the ip address
  52. DNS – Change WordPress Site Name?
  53. Add a mature content warning to first-time visitors
  54. get_bloginfo prints IP instead of url
  55. Limit action in comment according to IP
  56. how to move another machine or server without dealing with IP
  57. Redirect user based on his language and country using WPML [closed]
  58. Path Issue – Getting “localhost” instead the IP
  59. WordPress: redirecting to my old public ip
  60. Access web server in local LAN using domain name instead of IP
  61. REST api returns 404 on some WordPress sites
  62. WordPress in AWS Lightsail – restrict public IP
  63. IP Address Whitelist to Allow WordPress Core Auto Updates
  64. Automatically switch language based on visitor’s country
  65. Accessing WP multisite via IP instead of domain
  66. WordPress Update E-Mail shows IP instead of Domain
  67. WordPress redirect users from certain countries to subpage of language version
  68. Unable to properly load WordPress Admin page
  69. Using a page-template to restrict access based on IP (Frontend)
  70. Limit Search Queries per IP per Day
  71. PressPi (WordPress) Broken Layout
  72. Changing the site URL
  73. Test for IP in Array Always Fails on First IP
  74. Log IP of users who click a button? [closed]
  75. Show my custom post id if a country or ip
  76. Detecting IP Address of someone using ‘copy’ function [closed]
  77. I changed the site address and wordpress address from localhost to my ip and it doesn’t work anymore
  78. How to bind MySQL server to more than one IP address?
  79. What’s the command-line utility in Windows to do a reverse DNS look-up?
  80. What is the difference between Unix sockets and TCP/IP sockets?
  81. How bad is IPv4 address exhaustion really?
  82. Why can’t MX records point to an IP address?
  83. How to determine the hostname from an IP address in a Windows network?
  84. What is “anycast” and how is it helpful?
  85. WordPress site down for my IP only after trying to implement .htaccess whitelist

Leave a Comment

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)