How to solve network connection reset issue on Linux server

How to solve the problem of network connection reset on Linux server

In the process of using Linux server, sometimes you will encounter the problem of network connection reset. This issue may cause the server's network connection to be unstable, causing interruptions and delays in data transmission. In order to solve this problem, we can take the following methods:

1. Check the hardware equipment

First, we need to check whether the server's hardware equipment is running normally. You can check by following these steps:

1. Check the network cable: Make sure the network cable is connected correctly and is not damaged or loose. If necessary, you can replace the network cable to eliminate problems with the network cable itself.
2. Check the router: Check whether the status of the router is normal. You can try to restart the router to solve possible failures.
3. Check the network card: Use the command ifconfig to check the status of the network card and ensure that the network card is working properly. If you find that there is a problem with the network card, you can try to reinstall the network card driver.

2. Optimize network settings

If the hardware device is normal but the network connection is still unstable, it may be due to network settings. The following optimizations can be performed:

1. Adjust the MTU value: Use the command ifconfig or netstat -i to view the MTU value. According to the needs of the network, the MTU value can be appropriately adjusted to improve network performance and stability.
2. Disable ipv6: Some network applications have incomplete support for ipv6, which may cause network connection reset problems. You can disable ipv6 by editing the /etc/sysctl.conf file, and then use the command sysctl -p to make the setting take effect.
3. Check the firewall settings: Make sure the firewall settings are not causing network connection problems. You can use the command iptables -L to view the firewall rules. If any abnormal rules are found, they need to be deleted or modified in time.

3. Update and upgrade software

Software updates and upgrades can fix some known bugs and vulnerabilities, thereby improving the stability of the server. You can perform the following steps to update and upgrade software:

1. Update system: Use the command apt-get update or yum update to update system software packages.
2. Update the kernel: If the server is using an old version of the kernel, it may cause network connection reset problems. You can use the command yum update kernel or apt-get install linux-image to update the kernel.
3. Update App: Make sure you are using the latest version of the app. Applications can be updated using various package management tools such as apt-get, yum, etc.

4. Other operations

If the above method still cannot solve the problem of network connection reset, you can try the following operations:

1. Restart the network service : Use the command systemctl restart network or service network restart to restart the network service.
2. Check logging: Check the system logs, especially the /var/log/messages or /var/log/syslog files, to get more information about network connection problems.
3. Check hardware devices: If you are using a virtual machine, you can try to reconfigure the virtual network adapter. If you are using a physical server, you can try changing the network card or slot.

Summary:

When solving the problem of network connection reset on a Linux server, you must first check the running status of the hardware device. Next, network settings can be optimized, software updated and upgraded, and other actions taken to resolve issues. If the problem persists, you can consult a professional or network administrator for more detailed help.

The above is the detailed content of How to solve network connection reset issue on Linux server. For more information, please follow other related articles on the PHP Chinese website!