Gfilui

I am very very new to this all and over my head. I am hosting Ubuntu on a VM Virtual Box to host my shiny dashboard. It was all working and now suddenly I do not have internet access inside the Virtual Box which is causing it to not host my dashboard and I have know idea why.

Below are some outputs, please let me know if you need more or some other piece of information. I am using a NAT connection. Please note this is all on a company computer so I am limited to what I can do (i.e. reset routers, etc.).

code:

$ ifconfig

enp0s3 Link encap:Ethernet HWaddr 08:00:27:64:dc:b0 
 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0
 inet6 addr: fe80::a00:27ff:fe64:dcb0/64 Scope:Link
 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
 RX packets:43 errors:0 dropped:0 overruns:0 frame:0
 TX packets:166 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 txqueuelen:1000 
 RX bytes:4911 (4.9 KB) TX bytes:16737 (16.7 KB)

lo Link encap:Local Loopback 
 inet addr:127.0.0.1 Mask:255.0.0.0
 inet6 addr: ::1/128 Scope:Host
 UP LOOPBACK RUNNING MTU:65536 Metric:1
 RX packets:4 errors:0 dropped:0 overruns:0 frame:0
 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
 collisions:0 txqueuelen:1 
 RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)

code:

$ ping -c 5 10.0.2.15

PING 10.0.2.15 (10.0.2.15) 56(84) bytes of data.
64 bytes from 10.0.2.15: icmp_seq=1 ttl=64 time=0.039 ms
64 bytes from 10.0.2.15: icmp_seq=2 ttl=64 time=0.033 ms
64 bytes from 10.0.2.15: icmp_seq=3 ttl=64 time=0.040 ms
64 bytes from 10.0.2.15: icmp_seq=4 ttl=64 time=0.039 ms
64 bytes from 10.0.2.15: icmp_seq=5 ttl=64 time=0.040 ms

--- 10.0.2.15 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4002ms
rtt min/avg/max/mdev = 0.033/0.038/0.040/0.004 ms

code:

 $ route -n

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 10.0.2.2 0.0.0.0 UG 0 0 0 enp0s3
10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 enp0s3

code:

$ ping -c 5 google.com

PING google.com (172.217.10.110) 56(84) bytes of data.

--- google.com ping statistics ---
5 packets transmitted, 0 received, 100% packet loss, time 4000ms

code:

$ ping -c 5 172.217.10.110

PING 172.217.10.110 (172.217.10.110) 56(84) bytes of data.

--- 172.217.10.110 ping statistics ---
5 packets transmitted, 0 received, 100% packet loss, time 4017ms

code:

$ iwconfig

enp0s3 no wireless extensions.

lo no wireless extensions.

code:

$ cat /etc/resolv.conf

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 10.0.2.3

code:

$ ping -c 5 10.0.2.3

PING 10.0.2.3 (10.0.2.3) 56(84) bytes of data.
64 bytes from 10.0.2.3: icmp_seq=1 ttl=64 time=0.256 ms
64 bytes from 10.0.2.3: icmp_seq=2 ttl=64 time=0.233 ms
64 bytes from 10.0.2.3: icmp_seq=3 ttl=64 time=0.300 ms
64 bytes from 10.0.2.3: icmp_seq=4 ttl=64 time=0.252 ms
64 bytes from 10.0.2.3: icmp_seq=5 ttl=64 time=0.269 ms

--- 10.0.2.3 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3998ms
rtt min/avg/max/mdev = 0.233/0.262/0.300/0.022 ms

code:

$ ping -c 5 10.0.2.2

PING 10.0.2.2 (10.0.2.2) 56(84) bytes of data.
64 bytes from 10.0.2.2: icmp_seq=1 ttl=64 time=0.310 ms
64 bytes from 10.0.2.2: icmp_seq=2 ttl=64 time=0.310 ms
64 bytes from 10.0.2.2: icmp_seq=3 ttl=64 time=0.207 ms
64 bytes from 10.0.2.2: icmp_seq=4 ttl=64 time=0.269 ms
64 bytes from 10.0.2.2: icmp_seq=5 ttl=64 time=0.189 ms

--- 10.0.2.2 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3997ms
rtt min/avg/max/mdev = 0.189/0.257/0.310/0.050 ms

From my Host computer (windows):

H:>ipconfig /all

Windows IP Configuration

 Host Name . . . . . . . . . . . . : AI186552
 Primary Dns Suffix . . . . . . . : utcaus.com
 Node Type . . . . . . . . . . . . : Hybrid
 IP Routing Enabled. . . . . . . . : No
 WINS Proxy Enabled. . . . . . . . : No
 DNS Suffix Search List. . . . . . : utcaus.com
 hs.utccommercial.us
 hs.utc.com
 hs.utcitar.us
 hsd.utc.com
 rkd.snds.com
 goodrich.root.local
 root.local
 goodrich.com
 ssd.goodrich.com
 sps.snds.com
 px.snds.com
 utcapp.com
 na.utcmail.com
 utcmail.com
 utccommercial.us
 utc.com
 eh.pweh.com
 mgt.utc.us

Ethernet adapter Ethernet:

 Connection-specific DNS Suffix . : goodrich.root.local
 Description . . . . . . . . . . . : Intel(R) Ethernet Connection I217-LM
 Physical Address. . . . . . . . . : 98-90-96-BC-B3-EE
 DHCP Enabled. . . . . . . . . . . : Yes
 Autoconfiguration Enabled . . . . : Yes
 Link-local IPv6 Address . . . . . : fe80::7d59:a34b:7f66:ff3f%12(Preferred)
 IPv4 Address. . . . . . . . . . . : 10.169.166.60(Preferred)
 Subnet Mask . . . . . . . . . . . : 255.255.255.0
 Lease Obtained. . . . . . . . . . : Thursday, March 15, 2018 9:14:20 AM
 Lease Expires . . . . . . . . . . : Thursday, March 15, 2018 10:26:51 AM
 Default Gateway . . . . . . . . . : 10.169.166.1
 DHCP Server . . . . . . . . . . . : 10.169.160.50
 DHCPv6 IAID . . . . . . . . . . . : 60330134
 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1F-BC-FA-53-98-90-96-BC-B3-EE
 DNS Servers . . . . . . . . . . . : 10.169.160.18
 10.168.112.206
 Primary WINS Server . . . . . . . : 10.168.97.68
 Secondary WINS Server . . . . . . : 168.204.159.12
 NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter VirtualBox Host-Only Network:

 Connection-specific DNS Suffix . :
 Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter
 Physical Address. . . . . . . . . : 0A-00-27-00-00-08
 DHCP Enabled. . . . . . . . . . . : No
 Autoconfiguration Enabled . . . . : Yes
 Link-local IPv6 Address . . . . . : fe80::196d:d465:b540:9ae1%8(Preferred)
 IPv4 Address. . . . . . . . . . . : 192.168.56.1(Preferred)
 Subnet Mask . . . . . . . . . . . : 255.255.255.0
 Default Gateway . . . . . . . . . :
 DHCPv6 IAID . . . . . . . . . . . : 336199719
 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1F-BC-FA-53-98-90-96-BC-B3-EE
 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
 fec0:0:0:ffff::2%1
 fec0:0:0:ffff::3%1
 NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.goodrich.root.local:

 Media State . . . . . . . . . . . : Media disconnected
 Connection-specific DNS Suffix . : goodrich.root.local
 Description . . . . . . . . . . . : Microsoft ISATAP Adapter
 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
 DHCP Enabled. . . . . . . . . . . : No
 Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Reusable ISATAP Interface EFCAF89E-86BC-4DA3-9CD4-E5CC9B1E2141:

 Media State . . . . . . . . . . . : Media disconnected
 Connection-specific DNS Suffix . :
 Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
 DHCP Enabled. . . . . . . . . . . : No
 Autoconfiguration Enabled . . . . : Yes

code:

H:>route print
===========================================================================
Interface List
 12...98 90 96 bc b3 ee ......Intel(R) Ethernet Connection I217-LM
 8...0a 00 27 00 00 08 ......VirtualBox Host-Only Ethernet Adapter
 1...........................Software Loopback Interface 1
 2...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
 13...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
 0.0.0.0 0.0.0.0 10.169.166.1 10.169.166.60 25
 10.169.166.0 255.255.255.0 On-link 10.169.166.60 281
 10.169.166.60 255.255.255.255 On-link 10.169.166.60 281
 10.169.166.255 255.255.255.255 On-link 10.169.166.60 281
 127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
 127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
 127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
 192.168.56.0 255.255.255.0 On-link 192.168.56.1 281
 192.168.56.1 255.255.255.255 On-link 192.168.56.1 281
 192.168.56.255 255.255.255.255 On-link 192.168.56.1 281
 224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
 224.0.0.0 240.0.0.0 On-link 192.168.56.1 281
 224.0.0.0 240.0.0.0 On-link 10.169.166.60 281
 255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
 255.255.255.255 255.255.255.255 On-link 192.168.56.1 281
 255.255.255.255 255.255.255.255 On-link 10.169.166.60 281
===========================================================================
Persistent Routes:
 None

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination Gateway
 1 331 ::1/128 On-link
 8 281 fe80::/64 On-link
 12 281 fe80::/64 On-link
 8 281 fe80::196d:d465:b540:9ae1/128
 On-link
 12 281 fe80::7d59:a34b:7f66:ff3f/128
 On-link
 1 331 ff00::/8 On-link
 8 281 ff00::/8 On-link
 12 281 ff00::/8 On-link
===========================================================================
Persistent Routes:
 None

code:

H:>ping 172.217.10.110

Pinging 172.217.10.110 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 172.217.10.110:
 Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)

According to your logs, your NAT is working fine, but your company blocks outgoing ICMP (ping) packets, this is why you do not manage to test Internet connectivity using ping.

You are using a proxy server to access to the web on your Host computer, if you want to access the web within your VM, you must setup the appropriate proxy server, port, user, password.

In your VM, on your browser (Firefox) go to the Connection Settings.
Configure the proxy settings in Manual proxy configuration.

Then enter the expected parameter (HTTP Proxy, Port...)

Then you should have access to the Web (if your corporate proxy authentication scheme is compatible with your Linux VM)