I am trying to set up a new Debian 10 build server, and the first step is gaining the ability to ssh into the device from outside my local network. For whatever reason, this is proving to be difficult and I haven’t the slightest clue why. When I try to ssh into my server with user@hostname, I get the error:
ssh: Could not resolve hostname {hostname}: Name or service not known
When I try to ssh into my server with user@IPADDRESS it’s successful
ping {hostname} : ping: {hostname}: Name or service not known
ping {IP}: successful
nslookup {hostname}:
;; Got SERVFAIL reply from x.x.x.x, trying next server
Server: x.x.x.x.
Address: x.x.x.x.#53
** server can’t find {hostname}: SERVFAIL
nslookup {IP}: successful
Ansible Playbook:
- hosts: buildservers
remote_user: root
roles: - buildservers
I’m trying to run ansible role on multiple servers, but i get an error:
fatal: [hostname]: UNREACHABLE! => {“changed”: false, “msg”: “Failed to connect to the host via ssh: ssh: Could not resolve hostname hostname: Name or service not known”, “unreachable”: true}
ansible-playbook -vvvv
ansible-playbook 2.8.0
config file = /etc/ansible/ansible.cfg
configured module search path = [u’/home/kjames/.ansible/plugins/modules’, u’/usr/share/ansible/plugins/modules’]
ansible python module location = /usr/lib/python2.7/site-packages/ansible
executable location = /usr/bin/ansible-playbook
python version = 2.7.5 (default, Apr 9 2019, 14:30:50) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]
Using /etc/ansible/ansible.cfg as config file
setting up inventory plugins
host_list declined parsing /home/kjames/ds9/buildservers-qa as it did not pass it’s verify_file() method
script declined parsing /home/kjames/ds9/buildservers-qa as it did not pass it’s verify_file() method
auto declined parsing /home/kjames/ds9/buildservers-qa as it did not pass it’s verify_file() method
Not replacing invalid character(s) “set([u’-'])” in group name (RHEL7E-ARM)
[DEPRECATION WARNING]: The TRANSFORM_INVALID_GROUP_CHARS settings is set to allow bad characters in group names by default, this will change, but still be user
configurable on deprecation. This feature will be removed in version 2.10. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
[WARNING]: Invalid characters were found in group names but not replaced, use -vvvv to see details
Not replacing invalid character(s) “set([u’-'])” in group name (RHEL7E-ARM)
Parsed /home/kjames/ds9/buildservers-qa inventory source with ini plugin
statically imported: /home/kjames/ds9/roles/buildservers/tasks/regular-packages.yaml
Loading callback plugin default of type stdout, v2.0 from /usr/lib/python2.7/site-packages/ansible/plugins/callback/default.pyc
PLAYBOOK: new-buildserver.yaml *******************************************************************************************************************************************
Positional arguments: new-buildserver.yaml
ask_pass: True
check: True
become_method: sudo
inventory: (u’/home/kjames/ds9/buildservers-qa’,)
forks: 5
tags: (u’all’,)
verbosity: 4
connection: smart
timeout: 10
1 plays in new-buildserver.yaml
PLAY [buildservers] ******************************************************************************************************************************************************
TASK [Gathering Facts] ***************************************************************************************************************************************************
task path: /home/kjames/ds9/new-buildserver.yaml:13
ESTABLISH SSH CONNECTION FOR USER: root
SSH: EXEC sshpass -d10 ssh -vvv -C -o ControlMaster=auto -o ControlPersist=60s -o ‘User=“root”’ -o ConnectTimeout=10 -o ControlPath=/home/kjames/.ansible/cp/2a56e2da62 hostname ‘/bin/sh -c ‘"’“‘echo ~root && sleep 0’”’"‘’
(255, ‘’, ‘OpenSSH_7.4p1, OpenSSL 1.0.2k-fips 26 Jan 2017\r\ndebug1: Reading configuration data /etc/ssh/ssh_config\r\ndebug1: /etc/ssh/ssh_config line 58: Applying options for *\r\ndebug1: auto-mux: Trying existing master\r\ndebug1: Control socket “/home/kjames/.ansible/cp/2a56e2da62” does not exist\r\ndebug2: resolving “hostname” port 22\r\nssh: Could not resolve hostname hostname: Name or service not known\r\n’)