ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known

Recently I came across the same issue. I was able to ssh to my pi on my network, but not from outside my home network.

I had already:

  • installed and tested ssh on my home network.
  • Set a static IP for my pi.
  • Set up a Dynamic DNS service and installed the software on my pi. I referenced these instructions for setting up the static ip, and there are many more instructional resources out there.

Also, I set up port forward on my router for hosting a web site and I had even port forward port 22 to my pi’s static IP for ssh, but I left the field blank where you specify the application you are performing the port forwarding for on the router. Anyway, I added ‘ssh’ into this field and, VOILA! A working ssh connection from anywhere to my pi.

I’ll write out my router’s port forwarding settings.

(ApplicationTextField)_ssh     (external port)_22     (Internal Port)_22     (Protocal)_Both     (To IP Address)_192.168.1.###     (Enabled)_checkBox

Port forwarding settings can be different for different routers though, so look up directions for your router.

Now, when I am outside of my home network I connect to my pi by typing:

ssh pi@[hostname]

Then I am able to input my password and connect.

Related Posts:

  1. SSHFS mount that survives disconnect
  2. mysql_config not found when installing mysqldb python interface
  3. Pseudo-terminal will not be allocated because stdin is not a terminal
  4. X11 forwarding request failed on channel 0
  5. mysql_config not found when installing mysqldb python interface
  6. Pseudo-terminal will not be allocated because stdin is not a terminal
  7. How to download a file from server using SSH?
  8. connect to host localhost port 22: Connection refused
  9. Getting stty: standard input: Inappropriate ioctl for device when using scp through an ssh tunnel
  10. EC2 ssh Permission denied (publickey,gssapi-keyex,gssapi-with-mic)
  11. How to configure WP filesystem access in Linux (Ubuntu Server)?
  12. Can I automatically add a new host to known_hosts?
  13. Can I nohup/screen an already-started process?
  14. Permission denied (publickey). SSH from local Ubuntu to Amazon EC2 server
  15. Setting the hostname: FQDN or short name?
  16. Is it normal to get hundreds of break-in attempts per day?
  17. How to reconnect to a disconnected ssh session
  18. how to disable SSH login with password for some users?
  19. Should I quit using Ifconfig?
  20. Keeping a linux process running after I logout
  21. How to forcibly close a socket in TIME_WAIT?
  22. How to check if an RSA public / private key pair match
  23. how do you create an ssh key for another user?
  24. “POSSIBLE BREAK-IN ATTEMPT!” in /var/log/secure — what does this mean?
  25. Does getting disconnected from an SSH session kill your programs?
  26. Can you have more than one ~/.ssh/config file?
  27. What is this IP address: 169.254.169.254?
  28. SSH from A through B to C, using private key on B [closed]
  29. Show all users and their groups/vice versa
  30. How to determine the hostname from an IP address in a Windows network?
  31. Temporarily ignore my `~/.ssh/known_hosts` file?
  32. How to get TX/RX bytes without ifconfig?
  33. How can I fully log all bash scripts actions?
  34. What’s wrong with always being root?
  35. Hundreds of failed ssh logins
  36. How to check the physical status of an ethernet port in Linux?
  37. protocol version mismatch — is your shell clean?
  38. Testing UDP port connectivity
  39. What’s a .sh file?
  40. How to fix ‘sudo: no tty present and no askpass program specified’ error?
  41. What does pss mean in /proc/pid/smaps
  42. apt-get error: Sub-process /usr/bin/dpkg returned an error code (1)
  43. How do I grep recursively?
  44. How to extract C source code from .so file?
  45. subprocess.Popen(): OSError: [Errno 8] Exec format error in python?
  46. How to substitute shell variables in complex text files
  47. “sed” command in bash
  48. How to exclude a directory in find . command
  49. How can I find all *.js file in directory recursively in Linux?
  50. Argument list too long error for rm, cp, mv commands
  51. Difference between using “chmod a+x” and “chmod 755”
  52. WSL – GEDIT Unable to init server: Could not connect: Connection refused
  53. Install tkinter for Python
  54. Uncompress tar.gz file
  55. screen Cannot open your terminal ‘/dev/pts/0’ – please check
  56. curl: (6) Could not resolve host: google.com; Name or service not known
  57. How to pass password to scp?
  58. scp gives “not a regular file”
  59. CentOS error – sudo: effective uid is not 0, is sudo installed setuid root?
  60. Merge / convert multiple PDF files into one PDF
  61. scp from Linux to Windows
  62. How do I find the MySQL my.cnf location
  63. node.js: cannot find module ‘request’
  64. What is the reason and how to avoid the [FIN, ACK] , [RST] and [RST, ACK]
  65. wget returns “Unable to establish SSL connection”
  66. error : storage class specified for parameter
  67. How do I write stderr to a file while using “tee” with a pipe?
  68. WordPress Update – This is usually due to inconsistent file permissions.: wp-admin/includes/update-core.php
  69. Can scp copy directories recursively?
  70. What are the functional differences between .profile .bash_profile and .bashrc
  71. Why does my hostname appear with the address 127.0.1.1 rather than 127.0.0.1 in /etc/hosts?
  72. Linux command to inspect TXT records of a domain [closed]
  73. What does a + mean at the end of the permissions from ls -l?
  74. What version of RHEL am I using?
  75. What useful things can one add to one’s .bashrc? [closed]
  76. How do you make it obvious you are on a production system?
  77. How to add a timestamp to bash script log?
  78. How can I verify if TLS 1.2 is supported on a remote web server from the RHEL/CentOS shell?
  79. How to remove empty/blank lines from a file in Unix (including spaces)?
  80. Mount CIFS Host is down
  81. List of files installed from apt package
  82. How can I kill all stopped jobs?
  83. How to copy a large number of files quickly between two servers
  84. How to copy file preserving directory path in Linux?
  85. Postfix – how to retry delivery of mail in queue?
  86. Allow SFTP but disallow SSH?
  87. Is it possible to alias a hostname in Linux?
  88. How do I list loaded Linux module parameter values?
  89. Tips for Securing a LAMP Server
  90. What Linux distribution is the Amazon Linux AMI based on?
  91. How can I export the privileges from MySQL and then import to a new server?
  92. Is there a directory equivalent of /dev/null in Linux?
  93. Can I send some text to the STDIN of an active process running in a screen session?
  94. How can I get processor/RAM/disk specs from the Linux command Line? [duplicate]
  95. Is there a way to see the execution tree of systemd?
  96. create home directories after create users
  97. How do I redirect subdomains to a different port on the same server?
  98. Running Cron every 2 hours [duplicate]
  99. What does “debconf: delaying package configuration, since apt-utils is not installed” mean?
  100. In Linux, what is the difference between “buffers” and “cache” reported by the free command?

Leave a Comment