Linux
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How to delete a module in Debian
https://w3ask.com/delete-module-debian/
https://w3ask.com/delete-module-debian/
Sometimes we need to remove a module that was not working correctly or that was generating several issues, slowing the functionning of the server.
To ...
InnoDB and MySQL crash
https://w3ask.com/innodb-mysql-crash/
https://w3ask.com/innodb-mysql-crash/
InnoDB makes it easier to manage databases on a server. It is a storage engine. If you get the following error with InnoDB in MySQL error log ...
InnoDB: Fatal error: cannot allocate memory for the buffer pool
https://w3ask.com/innodb-fatal-error-allocate-memory-buffer-pool/
https://w3ask.com/innodb-fatal-error-allocate-memory-buffer-pool/
If you see this error in mysql error.log, it means that you don’t have enough free memory space.
InnoDB tries to operate the database in ...
Nginx No space left on device
https://w3ask.com/nginx-space-left-device/
https://w3ask.com/nginx-space-left-device/
You should try to find the biggest files on your server, like log files and delete them to free space.
Also to reboot the machine several ...
How to extract the memory of a Linux device
https://w3ask.com/extract-memory-linux-device/
https://w3ask.com/extract-memory-linux-device/
If you want to do some memory analyzing of devices that are working under Linux or based on Linux like Android, I suggest you LiME.
LiME ...
Let's Encrypt and ERR_SSL_VERSION_OR_CIPHER_MISMATCH
https://w3ask.com/encrypt-err_ssl_version_or_cipher_mismatch/
https://w3ask.com/encrypt-err_ssl_version_or_cipher_mismatch/
At a certain point, the free Let’s Encrypt SSL certificate can totally fail.
This is an unresolved issue yet.
The best solution is to ...
Shrunk-window.conf doesn’t work
https://w3ask.com/shrunk-window-conf-doesn/
https://w3ask.com/shrunk-window-conf-doesn/
You have added the shrunk window jail to Fail2Ban, but it doesn’t seem to work ?
I suggest you to try my modified guide :
– Setup ...
What is smmsp user
https://w3ask.com/smmsp-user/
https://w3ask.com/smmsp-user/
If you see smmsp in you logs, it is a user.
More specifically, it is the user of Sendmail.
How to setup a RSA key in your Linux server
https://w3ask.com/setup-rsa-key-linux-server/
https://w3ask.com/setup-rsa-key-linux-server/
First, generate the key :
– Download PuTTYgen.
– You can select the encryption (1024 bits, 2048 or 4096 bits).
– Launch the program, ...
Port 443 is already in use by another process
https://w3ask.com/port-443-process/
https://w3ask.com/port-443-process/
When you setup the free SSL certificate from Let’s Encrypt :
Don’t use standalone.
Select Apache Web Server plugin – Beta (apache).