I want to write a simple .bat file that will ping a number of IP addresses (to confirm servers are online) in turn, without me having to type "ping server name" each time
I looked at resources and those mentioning the wait command seem to all reference if the IP address in unknown
so what i would like is
Ping 10.X.X.1
Wait 10 seconds (or however long it takes to display the standard 4 ping response)
Ping 10.X.X.2
Wait 10 seconds (or however long it takes to display the standard 4 ping response)
Ping 10.X.X.3
and so on
so you know the addresses and are visually checking if any responds?
you should be able to use the -n option to limit ping to 4 pings per address:
;pingall.bat
ping -n 4 10.X.X.1
ping -n 4 10.X.X.2
ping -n 4 10.X.X.3
let me know if I misunderstood what you are trying to do
EDIT:
If you have a known list of IPs you can ping them via a list:
for %i in (1, 2, 3, 8, 9, 11, 110) do ping -n 4 10.X.X.%i
If you want to ping a range of IPs use this (start, increment, end):
for /l %i in (1,1,254) do ping -n 4 10.X.X.%i
Related
I'm getting complaints from employees in the field that our site is slow. When I check it -- the speed is acceptable. They are all going through a proxy server that is not controlled by me.
I'd like to run a continuous ping to the proxy server, but I haven't found anything to do that.
How do I check the speed from my site to a proxy server?
You can set up a cronjob to ping a site of your choice, at the frequency you choose. Here I ping google.com every 15 minutes. I can adjust the number of times I ping with the flag -c count and the time between pings with -i interval. This time is in seconds, I can use shorter intervals if required, for example 0.5.
I then pipe to tail -n to only use the last line with the results. At this stage my output is as follows:
rtt min/avg/max/mdev = 12.771/17.448/23.203/4.022 ms
We then use awk to only take the 4th field and use tr to replace the slashes with commas. Finally we store the result in a CSV file.
Here is the whole line in crontab:.
*/15 * * * * ping -c 5 -i 1 google.com | tail -n 1 | awk '{ print $4 }' | tr "/" "," >> /home/john/pingLog.csv
It is important to run this as root. To do so we edit the crontab using sudo:
sudo crontab -e
The end result is a comma separated file that you can open in Excel or equivalent, or process as you wish.
As noted in the ping output the 4 figures are min/avg/max/mdev.
Here is a version for Windows. The result is not so refined as we had in the Linux version but we're still getting the essentiels. You could put it in a .bat file and run it with a planned task or put it directly in the planned task.
ping google.com | findstr Minimum >> TotalPings.txt
Which adds the following line every time it is run:
Minimum = 23ms, Maximum = 23ms, Moyenne = 23ms
You can change the server pinged to suit your needs.
What have I tried
I wanted to create a way to make a faster pinging method for cmd than the normal '-t' command. So I came up with an idea to make two files and link them together:
The first st1.bat file contains
ping 10.10.10.10 -n 1
st2.bat
And the second st2.bat file contains
ping 10.10.10.10 -n 1
st1.bat
This creates a loop so it goes on forever.
The '-n' command is the number of packets you send. So by sending just one packet and then opening the second .bat file makes it a lot faster (30 milliseconds).
The command for extracting just the IP addresses is:
(#for /f "tokens=8" %a in ('tracert -4 -d wikipedia.org^|find "ms"') do #echo start ping %a)>ips.txt
What do I need
I want to combine these two codes and make 2 files for each IP to create a loop just like I showed you above. Every IP loop should have its own cmd window because if everything is in one window every packet should wait for the previous one to be done:
And finally link all the files together in one .bat file that I think will look like that:
Start st1.bat
Start st3.bat
Start st5.bat
Try to use: ping -n 1 -l 1
if you doesn't want
Firing with 1 bytes of data: try this command:
#echo off
:1
ping -n 1 -l 1 | find "TLL="
goto 1
When i run this command on my VPS:
netstat -n|grep :80|cut -c 45-|cut -f 1 -d ':'|sort|uniq -c|sort -nr|more
i get this result:
207 222.73.144.194
89 191.96.249.54
58 191.96.249.53
21 2400
15 51.255.64.23
6 143.137.103.251
3 103.27.72.36
1 89.180.150.168
1 66.102.7.137
1 5.189.170.167
1 191.181.39.208
1 183.2.246.218
I think this command is showing the number of connections per IP to port 80.
Is this a DDoS atack?
Have you check another aspect (eg. cpu load, network throughput to specific ip(s) using iftop or iptraf)? If there's normal, maybe it's just web/http scanner to your web.
If you're use nginx, you can use limit_conn module, to queue the rest of ip(s) if didn't obey your policy.
I'm trying to understand the behaviour of ping command. Trying to experiment on a windows 7 PC.
On the command prompt, I issued the following command:
ping <some hostname> -l 4096
The output I get is
Pinging <some hostname> [xx.xx.xxx.xx] with 4096 bytes of data:
General failure.
General failure.
General failure.
General failure.
Ping statistics for xx.xx.xxx.xx:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
However, ping <same hostname> -l 32 works just fine.
So my question is why is the server behaving differently for different packet sizes? Is it related to thwart? Or is that my local ping program is configured by default in such a way so as to not sent bigger packets?
Note that -l flag lets you specify the ping req's buffer size.
Your ping packet is probably larger than the local media's MTU, and it's on a network type where fragmentation isn't allowed. Ethernet IPv6 would be one such configuration.
Have a text file w/ around 3 million URL's of sites I want to block.
Trying to ping them one by one (yes, I know it is going to take some time).
Have a script (yes, I am a bit slow in BASH) which reads the lines one at a time from text file.
Obviously cannot print text file here. Text file was created >> w/ Python some time ago.
Problem is that ping returns "unknown host" w/ every entry. If I make a smaller file by hand using the same entries the script works. I thought it may be a white space or end of line issue so tried addressing that in script. What could the issue possibly be?
#!/bin/bash
while read line
do
li=$(echo $line|tr -d '\n')
li2=$(echo $li|tr -d ' ')
if [ ${#line} -lt 2 ]
then
continue
fi
ping -c 2 -- $li2>>/dev/null
if [ $? -gt 0 ]
then
echo 'bad'
else
echo 'good'
fi
done<'temp_file.txt'
Does the file contains URLs or hostnames ?
If it contains URLs you must extract the hostname from URLs before pinging:
hostname=$(echo "$li2"|cut -d/ -f3);
ping -c 2 -- "$hostname"
Ping is used to ping hosts. If you have URLs of websites, then it will not work. Check that you have hosts in your file , example www.google.com or an IP address and not actual full website urls. If you want to check actual URLs, use a tool like wget and another tool like grep/awk to grab for errors like 404 or others. Last but not least, people who are security conscious will sometimes block pinging from the outside, so take note.
C heck if the file contains windows-style \r\n line endings: head file | od -c
If so, to fix it: dos2unix filename filename
I wouldn't use ping for this. It can easily be blocked, and it's not the best way to check for either ip addresses or if a server presents web pages.
If you just want to find the corresponding IP, use host:
$ host www.google.com
www.google.com is an alias for www.l.google.com.
www.l.google.com has address 209.85.149.106
www.l.google.com has address 209.85.149.147
www.l.google.com has address 209.85.149.99
www.l.google.com has address 209.85.149.103
www.l.google.com has address 209.85.149.104
www.l.google.com has address 209.85.149.105
As you see, you get all the IPs registered to a host. (Note that this requires you to parse the hostname from your urls!)
If you want to see if a URL points at a web server, use wget:
wget --spider $url
The --spider flag makes wget not save the page, just check that it exists. You could look at the return code, or add the -S flag (which prints the HTTP headers returned)