Can't onnect to a specific server
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I have a pc running Ubuntu 16.04 LTS that for whatever reason is not wanting to connect to a local, also Ubuntu but 14 something, server. I can't SSH in and continue to get this when I ping it:
PING [server ip] 56(84) bytes of data.
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
etc...
This one pc is the only one that won't connect to it. DNS is pointed to this network's servers. Other Ubuntu, windows, and iOS devices can connect just fine. Changing DNS didn't help.
If there is a post or similar question I missed or any advice on how to locate and resolve this issue would be appreciated as I haven't been able to do either.
16.04 networking server
asked Apr 12 at 14:18
recursivePython
13
 |Â
show 1 more comment
up vote
0
down vote
favorite
I have a pc running Ubuntu 16.04 LTS that for whatever reason is not wanting to connect to a local, also Ubuntu but 14 something, server. I can't SSH in and continue to get this when I ping it:
PING [server ip] 56(84) bytes of data.
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
etc...
This one pc is the only one that won't connect to it. DNS is pointed to this network's servers. Other Ubuntu, windows, and iOS devices can connect just fine. Changing DNS didn't help.
If there is a post or similar question I missed or any advice on how to locate and resolve this issue would be appreciated as I haven't been able to do either.
16.04 networking server
asked Apr 12 at 14:18
recursivePython
13
Do you ping the server by IP address or by its name? You write[server ip]but talk about DNS.
– PerlDuck
Apr 12 at 14:24
Unreachable tends to mean you have a routing issue in your network. Likely you are trying to cross subnets without the correct routing, or something similar, when trying to connect to that IP.
– dobey
Apr 12 at 14:29
I tried pinging with both, a colleague suggested that DNS could be presenting an issue.
– recursivePython
Apr 12 at 14:49
Do your pings reach the server at all? Check with` sudo tcpdump -ni eth0 icmp` on the server (replace eth0 with the correct interface name)
– Sebastian Stark
Apr 12 at 15:39
@SebastianStark I would if I could, but the set up doesn't allow me access outside of a remote connection with the problem pc
– recursivePython
Apr 12 at 17:45
 |Â
show 1 more comment
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have a pc running Ubuntu 16.04 LTS that for whatever reason is not wanting to connect to a local, also Ubuntu but 14 something, server. I can't SSH in and continue to get this when I ping it:
PING [server ip] 56(84) bytes of data.
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
etc...
This one pc is the only one that won't connect to it. DNS is pointed to this network's servers. Other Ubuntu, windows, and iOS devices can connect just fine. Changing DNS didn't help.
If there is a post or similar question I missed or any advice on how to locate and resolve this issue would be appreciated as I haven't been able to do either.
16.04 networking server
asked Apr 12 at 14:18
recursivePython
13
I have a pc running Ubuntu 16.04 LTS that for whatever reason is not wanting to connect to a local, also Ubuntu but 14 something, server. I can't SSH in and continue to get this when I ping it:
PING [server ip] 56(84) bytes of data.
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
From [ip] icmp_seq=1 Destination Host Unreachable
etc...
This one pc is the only one that won't connect to it. DNS is pointed to this network's servers. Other Ubuntu, windows, and iOS devices can connect just fine. Changing DNS didn't help.
If there is a post or similar question I missed or any advice on how to locate and resolve this issue would be appreciated as I haven't been able to do either.
16.04 networking server
16.04 networking server
asked Apr 12 at 14:18
recursivePython
13
asked Apr 12 at 14:18
recursivePython
13
asked Apr 12 at 14:18
recursivePython
13
asked Apr 12 at 14:18
recursivePython
13
asked Apr 12 at 14:18
recursivePython
13
13
Do you ping the server by IP address or by its name? You write[server ip]but talk about DNS.
– PerlDuck
Apr 12 at 14:24
Unreachable tends to mean you have a routing issue in your network. Likely you are trying to cross subnets without the correct routing, or something similar, when trying to connect to that IP.
– dobey
Apr 12 at 14:29
I tried pinging with both, a colleague suggested that DNS could be presenting an issue.
– recursivePython
Apr 12 at 14:49
Do your pings reach the server at all? Check with` sudo tcpdump -ni eth0 icmp` on the server (replace eth0 with the correct interface name)
– Sebastian Stark
Apr 12 at 15:39
@SebastianStark I would if I could, but the set up doesn't allow me access outside of a remote connection with the problem pc
– recursivePython
Apr 12 at 17:45
 |Â
show 1 more comment
Do you ping the server by IP address or by its name? You write[server ip]but talk about DNS.
– PerlDuck
Apr 12 at 14:24
Unreachable tends to mean you have a routing issue in your network. Likely you are trying to cross subnets without the correct routing, or something similar, when trying to connect to that IP.
– dobey
Apr 12 at 14:29
I tried pinging with both, a colleague suggested that DNS could be presenting an issue.
– recursivePython
Apr 12 at 14:49
Do your pings reach the server at all? Check with` sudo tcpdump -ni eth0 icmp` on the server (replace eth0 with the correct interface name)
– Sebastian Stark
Apr 12 at 15:39
@SebastianStark I would if I could, but the set up doesn't allow me access outside of a remote connection with the problem pc
– recursivePython
Apr 12 at 17:45
Do you ping the server by IP address or by its name? You write
[server ip] but talk about DNS.– PerlDuck
Apr 12 at 14:24
Do you ping the server by IP address or by its name? You write
[server ip] but talk about DNS.– PerlDuck
Apr 12 at 14:24
Unreachable tends to mean you have a routing issue in your network. Likely you are trying to cross subnets without the correct routing, or something similar, when trying to connect to that IP.
– dobey
Apr 12 at 14:29
Unreachable tends to mean you have a routing issue in your network. Likely you are trying to cross subnets without the correct routing, or something similar, when trying to connect to that IP.
– dobey
Apr 12 at 14:29
I tried pinging with both, a colleague suggested that DNS could be presenting an issue.
– recursivePython
Apr 12 at 14:49
I tried pinging with both, a colleague suggested that DNS could be presenting an issue.
– recursivePython
Apr 12 at 14:49
Do your pings reach the server at all? Check with` sudo tcpdump -ni eth0 icmp` on the server (replace eth0 with the correct interface name)
– Sebastian Stark
Apr 12 at 15:39
Do your pings reach the server at all? Check with` sudo tcpdump -ni eth0 icmp` on the server (replace eth0 with the correct interface name)
– Sebastian Stark
Apr 12 at 15:39
@SebastianStark I would if I could, but the set up doesn't allow me access outside of a remote connection with the problem pc
– recursivePython
Apr 12 at 17:45
@SebastianStark I would if I could, but the set up doesn't allow me access outside of a remote connection with the problem pc
– recursivePython
Apr 12 at 17:45
 |Â
show 1 more comment
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Do you ping the server by IP address or by its name? You write
[server ip]but talk about DNS.– PerlDuck
Apr 12 at 14:24
Unreachable tends to mean you have a routing issue in your network. Likely you are trying to cross subnets without the correct routing, or something similar, when trying to connect to that IP.
– dobey
Apr 12 at 14:29
I tried pinging with both, a colleague suggested that DNS could be presenting an issue.
– recursivePython
Apr 12 at 14:49
Do your pings reach the server at all? Check with` sudo tcpdump -ni eth0 icmp` on the server (replace eth0 with the correct interface name)
– Sebastian Stark
Apr 12 at 15:39
@SebastianStark I would if I could, but the set up doesn't allow me access outside of a remote connection with the problem pc
– recursivePython
Apr 12 at 17:45