In my simple code: I already have read access, but I got “shmat: Permission denied”. Do I have permission to write? Answer From man shmat: If SHM_RDONLY is specified in shmflg, the segment is attached for reading and the process must have read permission for the segment. Otherwise the segment is a…
can i monitor four servers from one single net-data instance?
This is my one net data output also i can see other machinies this section but i want to see other machinies as below picture and it will redirect detailed page when i click any machine is that possible?? i searched on google but i am not able to find any answer. i am working on linux machine. Answer You
Too many open files raised by supervisord?
I use wrk to test web API service managed by supervisor on ubuntu 16.04. have error “too many open files”, but i have set system config still have error “too many open files” I found supervisord is belongs to root and cat /proc/PID/limits so, add root limit settings to limits.conf like…
ngrok error Failed to read valid http request: malformed HTTP request
I’m using ngrok building a Secure tunnels to localhost server On server side I run the command start ngrok Display It seems fine. Then I run the command on client side and the Alway reconnecting. Then I checkd the server side display these error [07/12/17 17:40:13] [INFO] [pub:7ac836d4] New connection f…
Spliting large scm files into individual commands
I have a very large scm file that is over 3 million lines long. I am ‘cat’ing it through a telnet port to a virtual server. I need to split the code into its individual lines and feed it into the server. It should send one line and wait a few milliseconds before sending the next line. Ex: … …
Extracting the PMK from a WiFi client under EAP-PEAP authentication, for analysis on Wireshark
I’m starting a research project related to WiFi, which requires me to analyze the exchange of frames in between a WiFi client and AP during connection setup. Experimental setup: I have a laptop M, capturing WiFi traffic with Wireshark on monitor mode, a device A (running Linux) connecting to a WiFi netw…
How can I delete a specific text in a text file
I have a text file : and I want to delete 192.168.47.1 line I tried but output is : I tried sed ‘s/192.168.47.1//g’ but again output is : I searched on google but but I am not able to find the right one. Answer The problem is that your pattern matches 3 lines in your data. You need to end
How to add 2nd RSA key to access Azure VM from a 2nd remote computer? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack …
Who can send to a socket bound to INADDR_LOOPBACK?
I’m somewhat new to socket programming, and am confused about the concept of binding a socket to the address INADDR_LOOPBACK, or 127.0.0.1. If I’m writing server code to listen for messages on a specific port, and I bind a socket to an address as in the following code exerpt… …my quest…
.Net Core ignoring Environment Variable DOTNET_SKIP_FIRST_TIME_EXPERIENCE
It seems apparent that you can save some time doing .NET Core builds by setting Environment variable DOTNET_SKIP_FIRST_TIME_EXPERIENCE=true. I am finding this is not the case on CentOS 7 and Debian Jessie Linux distros. I have a Jenkins slave Docker image, used by Jenkins to build .NET Core services, my image…