I have a private linux vps and want to monitor it by sending email when memory or process usage is high. Is there any free service to send email ? (solution like Sendinblue are requiring profesionnel account) Other method to monitor vps are welcome too. Answer I’ve used HetrixTools and was satisfied wit…
How to generate a PAX Tar archive with an Global Extended Attributes (‘g’) initial entry?
In Linux, I am trying to generate an uncompressed PAX archive containing a Global Extended Attributes entry using either one of the following commands: A) Specifying the pax options (implies –xattrs): B) Specifying xattrs support (implies –format=pax): Both commands generate a file successfully, b…
Rails server disk space keeps showing out of space [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 …
Rsync : How to copy files from source to destination in loop sequentially ?(linux)
I have been using rsync and it is working fine… But we keep deleting files in the destination folder and rsync keeps syncing files from the source folder. What’s the solution for this? I need to delete files from the destination and rsync should not keep syncs files again from source. How to solve…
When using recv(n), with n greather than the MTU are you guaranteed to read at least a whole layer 2 frame?
I was wondering, imagine if there is no data to read from a TCP socket, then a whole frame of 1492 bytes arrives (full). In your code (C or any language supporting TCP) you have let’s say recv 4096 bytes, will the OS guarantee that the recv reads the whole 1492 bytes, or is it possible that the loading …
B.A.T.M.A.N ad-hoc WiFi nodes cannot ping each other
I am working to connect 2 Linux machines, each with this USB Dongle: https://www.tp-link.com/us/home-networking/usb-adapter/archer-t2u-nano/, to an ad-hoc WiFi network managed by B.A.T.M.A.N ( batman-adv ). When run, these scripts show that both devices are joined to the same ad-hoc/IBSS network. I statically…
Use of gs register on a 32 bit program over a 64 bit linux
In a 64 bit program the selector:offset used to get the stack protector is fs:0x28, where fs=0. This poses no problem because in 64 bit we have the MSR fs_base (which is set to point to the TLS) and the GDT is completely ignored. But with 32 bit program the stack protector is read from gs:0x14. Running over a…
Where can I get node exporter metrics description?
I’m new to monitoring the k8s cluster with prometheus, node exporter and so on. I want to know that what the metrics exactly mean for though the name of metrics are self descriptive. I already checked the github of node exporter, but I got not useful information. Where can I get the descriptions of node…
how to execute flutter app in Chromium browser on linux?
how to execute flutter app in Chromium in Flat-pack Linux? i tried #CHROME_EXECUTABLE=/snap/bin/chromium; export CHROME_EXECUTABLE but it didn’t work. Answer you are using snaps now , to use Flat-pack Chromium edit the .bashrc file by adding :
Not able to start redhat httpd service
When I try to start the httpd service it is failing with the error : output of journalctl -xe . output of systemctl status httpd.service I tried to change the port number in httpd.conf file. But I got the same error. Can anyone please help? Answer try check your config, validate from command apachectl configt…