This article explains in detail the usage of the du command parameters in Linux, with examples to further illustrate how to use it. The du command function description: counts the disk space size occupied by directories (or files).
Syntax: du [-abcDhHklmsSx] [-L <symbolic link>][-X <file>][–block-size][–excl …
How to Fix “Kernel Panic – Not Syncing: Attempted to Kill Init!” on Linux Boot:
When the system starts, press the ‘e’ key to enter the GRUB edit interface, edit the GRUB menu, and select “kernel /vmlinuz-2.6.23.1-42.fc8 …
Sysctl Command and Linux Kernel Parameter Tuning 1. The sysctl command is used to configure and display kernel parameters in the /proc/sys directory. To persist the parameters, you can edit the /etc/sysctl.conf file. Command format: sysctl [-n] [-e] -w variable=value …
nf_conntrack operates at Layer 3, supporting both IPv4 and IPv6, whereas ip_conntrack only supports IPv4.
Currently, most ip_conntrack_* has been replaced by nf_conntrack_*, with many ip_conntrack_* merely serving as an alias. The original ip_conntrack’s /proc/sys/ne …
Error Cause: The command netstat -nat|grep -i “80″|wc -l # netstat -nat|grep -i “80″|wc -l netstat -an prints the current network connection status of the system, while grep -i “80″ is used to filter connections related to port 80 …
In Linux systems, this virtual memory is called SWaP. During OS installation, the setup wizard prompts the user to specify how much SWaP space to create. When installing Oracle 10g on a Linux system, we found that the SWaP partition was too small and needed to be manually expanded …
As for deleting a service entry, Windows might not allow it. If you really want to remove it completely, open the Registry Editor (“Start”—“Run”—“regedit”) and then navigate to HKEY_LOCAL_MACHINE/SYSTEM/ …
An in-depth guide to the Linux tail command, covering basic usage, real-time log monitoring with -f, and advanced filtering options.
1. Download the Zend Guard Loader compressed package.
(Official download link: http://www.zend.com/en/products/guard/downloads)
2. Extract and locate ZendGuardLoader.so (Linux) or ZendLoader.dll (Windows), matching your PHP version.
3. In your php.in …
If you connect to an FTP server using FileZilla’s default settings, you may encounter the following errors:
Error: Failed to establish data connection: ECONNREFUSED – Connection refused by server
Error: Connection timed out
Error: Failed to retrieve directory listing
The fix is to change the transfer mode to …
