大约有 1,100 项符合查询结果（耗时：0.0273秒） [XML]
Redis - Connect to Remote Server
...from a remote node which should have access try:
redis-cli -h REMOTE.HOST ping
You could also try that from the local host but use the IP you expect it to be listening on instead of a hostname or localhost. You should see it PONG in response in both cases.
If not, your firewall(s) is/are blocki...
Easy way to prevent Heroku idling?
...he free New Relic add-on. It has an availability monitor feature that will ping your site twice per minute, thus preventing the dyno from idling.
More or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great).
Note: t...
企业级负载平衡简介 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...定于服务实例的查询。这些状态查询请求常常包含了很多测试，甚至会尝试从服务实例中返回数据。
一旦负载平衡服务器发现其所管理的某个服务实例不再有效，那么它就不会再将任何数据转发给该服务实例，直到该服务实例...
My docker container has no internet
...ntainer will not be able to resolve the domain names into ip addresses, so ping google.com will fail.
Second thing to check is run cat /etc/resolv.conf on the host machine. Docker basically copies the host's /etc/resolv.conf to the container everytime a container is started. So if the host's /etc/r...
Android NDK C++ JNI (no implementation found for native…)
...erscore!
For example, I wanted to export a C function named AudioCapture_Ping(). Here is my export declaration in C:
JNI_EXPORT int Java_com_obsidian_mobilehashhost_MainActivity_AudioCapture_Ping(JNIEnv *pJniEnv, jobject object); //Notice the underscore before Ping
Here was my Java class impo...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...router.
Now, when I am outside of my home network I connect to my pi by typing:
ssh pi@[hostname]
Then I am able to input my password and connect.
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How to run a PowerShell script from a batch file
...icted
# Choose [Y]es
Start-Job { cd c:\working\directory\with\script\ ; ./ping_batch.ps1 example.com | tee ping__example.com.txt }
Start-Job { cd c:\working\directory\with\script\ ; ./ping_batch.ps1 google.com | tee ping__google.com.txt }
# Can be run immediately
Set-ExecutionPolicy -ExecutionPo...
Detect the Internet connection is offline?
...ill going to have to handle your own connection problem. Trying to send a ping to google would be a good way to confirm that the internet connection itself is down, so if that information is useful to you, then it might be worth the trouble.
Sidenote: Sending a Ping could be achieved in the same w...
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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