How to Use Screen: SSH Remote Session Management Tool
I. What Is the Screen Command? Screen is a full-screen window manager that multiplexes a physical terminal between several processes. Screen has the concept of sessions, where users can create multiple screen windows within a single screen session, in …
Below, we’ll use CentOS as an example:
Step 1: Use the local machine or connect to the CentOS system via SSH. Enter the command “/sbin/iptables -I INPUT -p tcp –dport 3306 -j ACCEPT” and confirm (using port 3306 as an example here).
Step 2: Use “/etc/init.d/iptables status& …
You can use the following command to check:
# lsb_release -aLSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarchDistributor ID: CentOSDescription: CentOS release 5.4 (Final)Release: …
Environment: CentOS 5, 7
Before disabling, you can test with:
ping 192.168.241.2 #replace IP with your own
Disable ping (temporary, suitable when rebooting the host is inconvenient)
The command is as follows (takes effect immediately, invalid after reboot):
echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all …
Create a new Notepad file and enter the following content:
@echo off
echo Cleaning system junk files, please wait…
del /f /s /q %systemdrive%/*.tmp
del /f /s /q %systemdrive%/*._mp
del /f /s /q %systemdrive%/*.log
del / …
In our daily use of computers, most of us have experienced being locked out of a system due to a forgotten password. How should we handle this problem? Many of you might immediately think of various password cracking tools, the most famous of which is ERD Commander Boot CD. …
First use ifconfig -a to check which interface is in use. Below we’ll use eth0 as an example to configure eth0 as follows:#Edit: vi /etc/sysconfig/network-scripts/ifcfg-eth0Content DEVICE=eth0 BOOTPROTO=static BROADCAST=192.168.1.255 IPADDR=192.168.1.25 NETM …
Below, using CentOS as an example, the command to mount the ext4-formatted disk /dev/sdb1 to /mnt is:
mount -t ext4 /dev/sdb1 /mnt …
Fixing phpMyAdmin HTTP 500 Internal Server Error: %1 Is Not a Valid Win32 Application
When opening phpMyAdmin, it displays an HTTP 500 Internal Server Error. In Firefox, it shows “%1 is not a valid Win32 application.” After Googling, I finally found the issue — it turned out to be a conflict between the Windows Server 2003 64-bit operating system and 32-bit IIS. The solution is as follows: you need to run 32 …
1. Check disk information: #fdisk -lTake my disk information as an example:
2. Check filesystem format (needed later): #df -T
3. Now mount the 48.3GB /dev/sdb shown in the image:
Open the boot-time fstab file vi /etc/fstabAdd the following to the last line: /dev/sdb …
