5
votes
How does 0.0.0.0 binding happen in Linux?
Actual definition of 0.0.0.0
The address is reserved by IANA for it's definition in RFC 1122 as:
IANA IPv4 Special-Purpose Address Registry...
0.0.0.0/32 This host on this network [RFC1122], Section ...
- 220
5
votes
`ping -c` in Windows: output error `Bad value for option -c.`
It seems that you're using the -c parameter to stand for the
count of ping requests. Under Windows the parameter is
(default is 3):
-n count Number of echo requests to send.
You may see all the ...
- 446k
4
votes
ping does not work on a rootless Ubuntu podman container on Fedora
As you certainly know, containers make use of certain kernel features. Most prominently this includes kernel namespaces and resource groups.
To interact with the network, you usually interact with the ...
- 41
3
votes
Accepted
Will i be able to use samba share and access file from ubuntu on windows if ping shows destination unreachable
Samba is over TCP and ping is over ICMP, these are two quite different network protocols. So, it is technically possible that some network device is configured to block ICMP traffic, while still ...
- 61
1
vote
Centos 7 - ping (connect: Network is unreachable)
Two mistakes:
The first one is wrong NETMASK
The second - it was necessary to restart all services responsible for
the network
Special thanks for your help John and Romeo Ninov
1
vote
Accepted
If I ping whateversite.com, what host am I pinging?
If I ping www.whateversite.com, I'm pinging the www host in the whateversite.com domain, right?
That is kind of a simplification, but yes, close enough.
If I ping whateversite.com, what host am I ...
- 2,660
1
vote
If I ping whateversite.com, what host am I pinging?
The first thing to clarify is that in DNS terms, while a "Host" address (eg A or AAAA record) CAN refer to an individual server (and traditionally did most of the time), it doesn't have to.
...
- 374
1
vote
If I ping whateversite.com, what host am I pinging?
You could say you're pinging a host named "whateversite.com".
There is a bit of overlap between 'hosts' and 'domains'. Any domain name at any level counts as a 'host' if it has any "...
- 417k
1
vote
Can no longer ping router, 8.8.8.8 or gain internet access after removing Norton
(DISM / SFC) step 1-2, and 4 completed however step 3 failed, source
file could not be found. Anyways, ran step 4 and it was successful,
restarted computer. Same error.
This means more serious ...
- 44.6k
1
vote
computer can ping to router lan ip from outside
You told the computer to send packets bound for the 192.168.1.0 network to 10.0.0.1, so it sends the packets to the router. So the outbound packet gets to its destination.
The router knows how to ...
- 61.5k
1
vote
What causes IPv6 ping of linux guest to drop packets in cyclical fashion on Win 10?
TL;DR
I unwittingly "booby-trapped" the system in regards to IPv6 connectivity a long time ago by telling the windows firewall to Block all incoming connections on public networks. This ...
- 517
1
vote
What can be the reason for random intermittent connections?
You state, "Pinging the router from any of the three devices shows significant packet loss (anywhere from 10-40%)." And then issue occurs both over WiFi and Ethernet. Is something keeping ...
- 24.4k
1
vote
What can be the reason for random intermittent connections?
Everything points to the router as the problem.
if it were a lose or broken cable, you would get a normal response from Mobile1.
You are pinging the router, not some address on the Internet, so the ...
- 2,253
1
vote
Accepted
Change in 'hosts' file responds to ping but refuses to connect on any browser
hosts-file isn't relevant to the issue, it only binds names to IP addresses.
As localhost:3080 and example-site.com:3080 are reachable with a browser but simple example-site.com isn't, the web service ...
- 4,438
1
vote
Trying to colour code the output of tracert within powershell - not working as expected
Line 13: elseif ($trace -Match '[1-0][1-9] ms' ) -- [1-0] is backwards, not accepted.
While this does work, I'd find it easier to understand and less likely to break, e.g. due to other characters, ...
- 24.4k
1
vote
Accepted
Trying to colour code the output of tracert within powershell - not working as expected
You need a space at the beginning of your regex patterns. Otherwise, this line will almost always match:
# matches '21 ms' and '199 ms'
if ($trace -Match '[1-9] ms') {}
In more recent versions of ...
- 3,625
1
vote
Accepted
Why pinging device under VPN succeeds?
This is fairly standard VPN behaviour - the packet is not going out the VPN at all.
What VPNs typically do is add a default gateway/route of last resort/catch all route to your routing table - however ...
- 67.8k
1
vote
Accepted
Setup new router with SQM - Buffer Bloating solution
Yes, you can solve bufferbloat using your own SQM-capable router, even if you're stuck with a bloat-prone ISP-provided fiber ONT (or modem, or other piece of "customer premises equipment" or ...
- 101k
1
vote
Accepted
Why is it not possible to ping a local IP when connected to Mozilla VPN?
Basically you need to configure split tunneling. For Mozilla VPN there is a support page explaining how to allow local network access to enable wireless printing:
Open Mozilla VPN and turn it off if ...
- 2,858
1
vote
How to measure the latency to a webserver?
Netperf doesn't work with arbitrary HTTP servers. You have to run netperf's "netserver" binary on the target server machine for your test.
- 101k
1
vote
Can ping to all computers and internet but router fails
I obviously needed sleep, and came back with an open mind.
The firewall was off, which is one of the first things I checked.
Then I checked the AV software, while it didn't have a firewall configured, ...
1
vote
windows built-in ping response strangeness
Well, being a noname “smart” switch makes it hazardous software waste I guess! I think the ping routine may be sending out stuff it should not, most likely freed/uninitialized memory.
When you ping, ...
- 59.1k
1
vote
Unable to nmap but able to ping
I am guessing you ran nmap as an unprivileged user, so ICMP was not used for host discovery. Using -Pn "works" because it skips host discovery and treats the host as up no matter what.
1
vote
Accepted
Why is there no TTL in the output of the Ping Localhost command while it present in Ping 127.0.1`s output?
Nowadays IPv6 ist the preferred protocol.
localhost is resolved to the IPv4 address 127.0.0.1 and the IPv6 address ::1. Because IPv6 is the preferred protocol, ::1 will be used by the ping localhost ...
- 659
1
vote
Directly Pinging a Device (IPV4)
are there any special considerations that I need to take into account when setting up my network parameters?
No, there are no special considerations. As long as both machines share the same subnet, ...
- 2,513
1
vote
Why am I able to ping my local device only sometimes?
I resolved my issue, the problem seems to be due to mDNS (Avahi) not working correctly. Following this answer seemed to do the trick: https://askubuntu.com/a/460449/790690
- 111
1
vote
Will i be able to use samba share and access file from ubuntu on windows if ping shows destination unreachable
You have a network problem you need to solve before SAMBA will work.
As it stands your computers need to be able to communicate directly with esch other but are unable to. We know this because the ...
- 67.8k
1
vote
two devices on same WiFi network unable to see each other unless ARP table set manually
ARP is probably failing because multicast (which, in the context of Wi-Fi, includes broadcast) is failing because of a buggy implementation, possibly in your Android devices Wi-Fi drivers, or possibly ...
- 101k
1
vote
Android device can't ping PC while on same network
Make sure your Firewall is OFF (or allowed for accepting request from domain/private network).
For example, from Windows 10 -> Firewall & network protection ->
Domain Network -> Turn OFF,...
1
vote
No internet, but can ping from cmd
This sounds like you have a proxy setup for the internet.
Open Powershell or CMD as Admin and run
netsh.exe winhttp show proxy
That should list any proxies setup. To remove run
netsh.exe winhttp ...
- 71
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