Could not connect to Redis at 127.0.0.1:6379: Name or service not known

$ redis-server

5936:C 04 Aug 15:04:06.955 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo

5936:C 04 Aug 15:04:06.955 # Redis version=4.0.10, bits=64, commit=00000000, mod           ified=0, pid=5936, just started

5936:C 04 Aug 15:04:06.955 # Warning: no config file specified, using the defaul           t config. In order to specify a config file use src/redis-server /path/to/redis.           conf

5936:M 04 Aug 15:04:06.958 # You requested maxclients of 10000 requiring at leas           t 10032 max file descriptors.

5936:M 04 Aug 15:04:06.958 # Server can't set maximum open files to 10032 becaus           e of OS error: Too many open files.

5936:M 04 Aug 15:04:06.958 # Current maximum open files is 3200. maxclients has            been reduced to 3168 to compensate for low ulimit. If you need higher maxclients            increase 'ulimit -n'.

                _._

           _.-``__ ''-._

      _.-``    `.  `_.  ''-._           Redis 4.0.10 (00000000/0) 64 bit

  .-`` .-```.  ```\/    _.,_ ''-._

 (    '      ,       .-`  | `,    )     Running in standalone mode

 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379

 |    `-._   `._    /     _.-'    |     PID: 5936

  `-._    `-._  `-./  _.-'    _.-'

 |`-._`-._    `-.__.-'    _.-'_.-'|

 |    `-._`-._        _.-'_.-'    |           http://redis.io

  `-._    `-._`-.__.-'_.-'    _.-'

 |`-._`-._    `-.__.-'    _.-'_.-'|

 |    `-._`-._        _.-'_.-'    |

  `-._    `-._`-.__.-'_.-'    _.-'

      `-._    `-.__.-'    _.-'

          `-._        _.-'

              `-.__.-'

5936:M 04 Aug 15:04:06.969 # Server initialized

5936:M 04 Aug 15:04:06.970 * DB loaded from disk: 0.001 seconds

5936:M 04 Aug 15:04:06.970 * Ready to accept connections

$ redis-cli

Could not connect to Redis at 127.0.0.1:6379: Name or service not known

Aborted (core dumped)