|
USA-RI-NEWPORT Κατάλογοι Εταιρεία
|
Εταιρικά Νέα :
- Checking host availability by using ping in bash scripts
if [ "`ping -c 1 some_ip_here`" ] then echo 1 else echo 0 fi gives 1 no matter if I enter valid or invalid ip address How can I check if a specific address (or better any of devices from list of ip addresses) went offline?
- Checking Host’s Network Availability in Linux - Baeldung
For a given IP address, hostname, or fully qualified domain name (FQDN), we can check its availability using ping: By default, the ping command will send packets indefinitely to the host until it’s terminated
- Is Ping a reliable way to check if a server is available?
If under normal circumstances your server responds to ping, it is useful to ping it at one minute intervals to check if it responds This of course only tells you that there is a server at that IP address and that there is a network path from the source of the ping to the destination
- Shell command script to see if a host is alive? - Unix Linux Stack . . .
With FreeBSD and Linux iputils, ping -c 1 -W 1 > dev null sends a single ping and wait 1 second You don't need to parse the output: the command returns 0 if it received a ping back and nonzero otherwise (unknown host name, no route to host, no reply)
- How to Check Availability by Using Ping in Bash Scripts
When it comes to checking the availability of a host in an Ubuntu environment, utilizing the ping command in Bash scripts is a powerful method Ping, a simple yet effective utility, sends Internet Control Message Protocol (ICMP) echo request packets to a specific host and waits for a response
- need to check whether a sever is pingable or not inside the script
need to write a script which will check number of ip address are able to ping or not ping -c 1 ${IPADDRESS} > dev null 2> 1 RESULT=$? if [ ${RESULT} -eq 0 ]; then echo "INFO: Server ${IPADDRESS} is okay " else echo "WARNING: Server ${IPADDRESS} is NOT okay " fi WARNING: Server 10 0 0 5 is NOT okay WARNING: Server 192 168 2 5 is NOT okay
- Best Fast way to find out if an ip address is reachable
You could probably do 100's or thousands of connects a second using libevent -- depending on your network hardware Another alternative is Boost::ASIO which is more complicated But since you are using C++ might suite you better
- How to Check Availability via ping in Bash Scripts - VegaStack
Use the ping -c 1 <host> command, where <host> is the IP address or hostname, along with the -c option to specify the number of ICMP Echo Requests to send (in this case, 1) Check the exit status or output to determine reachability
- Ping using specific gateway interface or source IP address
One can use ping command to find whether a specific IP address is accessible from your host Another usage of ping is to find out the distance (round trip) between any two network routers or other network devices such as switches, firewall, websites, hosts and other stuff
- Bash ping script file for checking host availability - Unix Linux . . .
I would use this, a simple one-liner: while ! ping -c1 HOSTNAME > dev null; do echo "Ping Fail - `date`"; done ; echo "Host Found - `date`" ; root scripts test1 sh Replace HOSTNAME with the host you are trying to ping
|
|