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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
... -it docker/whalesay bash
Does the container have an Internet connection?: ping 172.217.4.238 (google.com)
Can the container resolve hostnames? ping google.com
In my case, the first ping resulted in responses, the second did not.
How I fixed:
Once I discovered that DNS was not working inside th...
How to get a list of all valid IP addresses in a local network? [closed]
...192.168.1.0/24
will scan the entire .1 to .254 range
This does a simple ping scan in the entire subnet to see which hosts are online.
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Retrieving the output of subprocess.call() [duplicate]
...ux version, see note):
import subprocess
print subprocess.check_output(["ping", "-c", "1", "8.8.8.8"])
Note that the ping command is using linux notation (-c for count). If you try this on Windows remember to change it to -n for same result.
As commented below you can find a more detailed expla...
Capturing standard out and error with Start-Process
...$pinfo = New-Object System.Diagnostics.ProcessStartInfo
$pinfo.FileName = "ping.exe"
$pinfo.RedirectStandardError = $true
$pinfo.RedirectStandardOutput = $true
$pinfo.UseShellExecute = $false
$pinfo.Arguments = "localhost"
$p = New-Object System.Diagnostics.Process
$p.StartInfo = $pinfo
$p.Start() |...
Virtualbox “port forward” from Guest to Host [closed]
...est machine you can communicate directly with the host, e.g. check it with ping:
# ping 192.168.5.1
PING 192.168.5.1 (192.168.5.1) 56(84) bytes of data.
64 bytes from 192.168.5.1: icmp_seq=1 ttl=128 time=2.30 ms
...
Firewall issues?
@Stranger suggested that in some cases it would be necessary to op...
Timeout command on Mac OS X?
...
What does it look like to use it directly, without wrapping it in a function?
– mwfearnley
Nov 8 '16 at 9:24
...
Why are my basic Heroku apps taking two seconds to load?
...
Pinging your server to keep it from idling is crapping in your own nest. These services you are talking about are free. They need to conserve resources. If everyone pings their server, none get swapped out, and the pro...
A Windows equivalent of the Unix tail command [closed]
... had the same problem with download and eating cpu! added this line ping 127.0.0.1 -n 2 > nul before goto followloop. it sends two pings and waits 1 in sec between. so it would let cpu live!:D
– Mohsen ZareZardeyni
Jul 4 '17 at 13:27
...
廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...-error detach;
}
net{
timeout 60;
connect-int 10;
ping-int 10;
max-buffers 2048;
max-epoch-size 2048;
}
on share1{
device /dev/drbd0;
disk /dev/sdb1;
address 10.10.10.42:7788;
meta-disk internal;
}
on share2{
device /dev/drbd0;
d...
Check status of one port on remote host [closed]
... a command line that can check the port status on a remote host. I tried ping xxx.xxx.xxx.xxx:161 but it doesn't recognize the "host". I thought it was a "good" answer until I did the same command against a host I know has that port open. This is for a batch file on Windows that will check the ...