I can't reach a web server of my guest OS (Debian server) from my MacOS host

M

MartinB26

Member
I set up a Debian server VM in Parallels. I configured it to use the Bridge network. DHCP is enabled, however I configured the VM to use a static IP.

vdFYc.png


On Debian the web server runs (`127.0.0.1:5000`) and the network is properly configured:

Code: 
$ sudo cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug enp0s5
# iface enp0s5 inet dhcp
iface enp0s5 inet static
  address 10.211.55.201
  netmask 255.255.255.0
  gateway 10.211.55.1

$ netstat -pln
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      -
tcp        0      0 127.0.0.1:5000          0.0.0.0:*               LISTEN      899/python3
tcp6       0      0 :::22                   :::*                    LISTEN      -
Active UNIX domain sockets (only servers)
Proto RefCnt Flags       Type       State         I-Node   PID/Program name     Path
unix  2      [ ACC ]     STREAM     LISTENING     13667    840/systemd          /run/user/1000/systemd/private
unix  2      [ ACC ]     STREAM     LISTENING     13673    840/systemd          /run/user/1000/gnupg/S.dirmngr
unix  2      [ ACC ]     STREAM     LISTENING     13675    840/systemd          /run/user/1000/gnupg/S.gpg-agent.browser
unix  2      [ ACC ]     STREAM     LISTENING     13677    840/systemd          /run/user/1000/gnupg/S.gpg-agent.extra
unix  2      [ ACC ]     STREAM     LISTENING     13679    840/systemd          /run/user/1000/gnupg/S.gpg-agent.ssh
unix  2      [ ACC ]     STREAM     LISTENING     13681    840/systemd          /run/user/1000/gnupg/S.gpg-agent
unix  2      [ ACC ]     STREAM     LISTENING     11990    -                    /run/dbus/system_bus_socket
unix  2      [ ACC ]     STREAM     LISTENING     13009    -                    /run/systemd/private
unix  2      [ ACC ]     STREAM     LISTENING     13011    -                    /run/systemd/userdb/io.systemd.DynamicUser
unix  2      [ ACC ]     STREAM     LISTENING     13012    -                    /run/systemd/io.system.ManagedOOM
unix  2      [ ACC ]     STREAM     LISTENING     13020    -                    /run/lvm/lvmpolld.socket
unix  2      [ ACC ]     STREAM     LISTENING     13024    -                    /run/systemd/fsck.progress
unix  2      [ ACC ]     STREAM     LISTENING     13032    -                    /run/systemd/journal/stdout
unix  2      [ ACC ]     SEQPACKET  LISTENING     13034    -                    /run/udev/control
unix  2      [ ACC ]     STREAM     LISTENING     10664    -                    /run/systemd/journal/io.systemd.journal

$ curl http://127.0.0.1:5000
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
...

Now I try to access the web server from the host:

Code: 
> ping 10.211.55.201
PING 10.211.55.201 (10.211.55.201): 56 data bytes
64 bytes from 10.211.55.201: icmp_seq=0 ttl=64 time=1.425 ms
64 bytes from 10.211.55.201: icmp_seq=1 ttl=64 time=0.317 ms
64 bytes from 10.211.55.201: icmp_seq=2 ttl=64 time=0.290 ms
64 bytes from 10.211.55.201: icmp_seq=3 ttl=64 time=0.386 ms
> ssh marty@10.211.55.201 echo test
test
> curl http://10.211.55.201:5000
curl: (7) Failed to connect to 10.211.55.201 port 5000 after 1011 ms: Connection refused

The machine is clearly reachable and the web server works. What could be the issue here?
 
Also on Debian:

Code: 
$ sudo ifconfig
enp0s5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.211.55.201  netmask 255.255.255.0  broadcast 10.211.55.255
        inet6 fe80::21c:42ff:fedf:37b  prefixlen 64  scopeid 0x20<link>
        ether 00:1c:42:df:03:7b  txqueuelen 1000  (Ethernet)
        RX packets 564  bytes 78327 (76.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 308  bytes 49738 (48.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 15  bytes 1394 (1.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 15  bytes 1394 (1.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
 
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