Not connecting to internet - Scilinux 7.6 running on vwmare (host windows 10)

vnbl · 02-20-2019, 06:01 PM

Hello,

I'm having trouble connecting to the internet in my Scilinux virtual machine

I'm using a bridged connection

Things I've tried:

- Reinstalling vmware
- Reinstalling the OS: when i do this, the VM connects to the internet just fine, but when i log out and start the VM again it stops connecting.
- NAT connection

This is my first time using a Red Hat related OS (I've been using debian and related distros for a while)

berndbausch · 02-20-2019, 07:24 PM

Show us the output of ip address and ip route and the /etc/sysconfig/network-scripts/ifcfg* files.

How do you try connecting to the internet? Do you get a reply when running ping 1.1.1.1? Do you have connectivity to the Windows 10 host?

I am a bit confused by your remark about logging out. Do you lose connection when logging out, or when you reboot the VM?

vnbl · 02-21-2019, 05:47 AM

vnbl · 02-21-2019, 05:48 AM

Quote:

Originally Posted by berndbausch

Show us the output of ip address and ip route and the /etc/sysconfig/network-scripts/ifcfg* files.

How do you try connecting to the internet? Do you get a reply when running ping 1.1.1.1? Do you have connectivity to the Windows 10 host?

I am a bit confused by your remark about logging out. Do you lose connection when logging out, or when you reboot the VM?

Code:

[vnbl@localhost ~]$ ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:57:23:56 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.124/24 brd 192.168.1.255 scope global dynamic ens33
       valid_lft 62928sec preferred_lft 62928sec
3: bridge0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 92:a9:85:49:a7:fd brd ff:ff:ff:ff:ff:ff
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:22:6c:07 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
    link/ether 52:54:00:22:6c:07 brd ff:ff:ff:ff:ff:ff


[vnbl@localhost ~]$ ip route
default via 192.168.1.1 dev ens33 
169.254.0.0/16 dev ens33 scope link metric 1002 
192.168.1.0/24 dev ens33 proto kernel scope link src 192.168.1.124 
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 


[vnbl@localhost ~]$ ls /etc/sysconfig/network-scripts/ifcfg*
/etc/sysconfig/network-scripts/ifcfg-Bridge_connection_1
/etc/sysconfig/network-scripts/ifcfg-ens33
/etc/sysconfig/network-scripts/ifcfg-eth0 
/etc/sysconfig/network-scripts/ifcfg-lo

How do you try connecting to the internet? Not sure i understand this question,

response from ping 1.1.1.1 = yes, working fine

i meant rebooting, not loging out

berndbausch · 02-21-2019, 08:09 AM

Quote:

Originally Posted by vnbl

response from ping 1.1.1.1 = yes, working fine

This means that you are connected to the internet.

Quote:

How do you try connecting to the internet? Not sure i understand this question,

What makes you think you are not connected?

vnbl · 02-21-2019, 01:02 PM

Quote:

Originally Posted by berndbausch

This means that you are connected to the internet.

What makes you think you are not connected?

I tried using firefox, didn't work, I tried downloading a script using wget, didn't work either

I tried using ping again just now and it didn't work

berndbausch · 02-21-2019, 05:36 PM

Quote:

Originally Posted by vnbl

I tried using firefox, didn't work, I tried downloading a script using wget, didn't work either

I tried using ping again just now and it didn't work

If you don't get access to a web site, be it through a browser or wget or other tool, you may have internet connectivity problems or your DNS may not be set up correctly. Since you were able to access 1.1.1.1, I assumed the latter.

Now you seem to have intermittent lack of connectivity.

The problem is that there are several moving parts. Between your VM and the internet, you have VMware, the Windows PC, and whatever home or office networking equipment you use for internet access. Somewhere along this chain, the traffic is blocked (at least sometimes).

If I were you, I would use Wireshark or other network tracing tools like tcpdump on Linux to find out which component chokes your traffic. If you have never used them, the little time you need to invest to acquire beginners skills with these tools is well worth it in my opinion.