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A Network Error Occurs During Software Installation on Ubuntu OS
Updated on 2023-11-28 GMT+08:00
A Network Error Occurs During Software Installation on Ubuntu OS
Symptoms
The error message time out is displayed when software is installed on Ubuntu OS.
Cause Analysis
- The target host failed to download the software package from the official image repository due to network connection timeout.
- The possible causes of network connection timeout are as follows:
- The network between the target host and the APT repository is disconnected.
- The firewall restricts outbound access.
- The security group has an outbound rule to restrict access.
Solution
- Run the ping $domainName command to check the network connectivity. $domainName indicates the domain name of the APT repository. If the network is normal, perform steps 2 and 3 to check the firewall and security group. If the network is abnormal, contact the network administrator.
- Check the firewall configurations.
- Run the iptables -nL command to check whether outbound access is restricted on port 80.
- Check the outbound rules of the security group to which the target host belongs.
- Contact the network administrator to modify the outbound rules of the security group.
Parent topic: Running Shell Commands
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