This is really strange. This is the first CentOS 7 server we are using with cpanel. Yesterday, we found out that when we add a new IP into the server, it will bring down the server. Or at least the networking part of the server. We ended up unable to remote or access into the server through network. We called our DC and they say screen is still showing linux login page.
Once the server is rebooted, server will be accessible again. We can then access the server through main IP. However, secondary IP is not accessible. The problem is, after about 10-15 minutes, the whole network is down again. As we are not physically at the DC, we cannot login locally to check the problem. We had to request for a reboot and then go in to remove the extra IP before network go down again.
This is really strange. We use cpanel to add the IP and we have done this many times without issue on cpanel installed on centos 5 and 6.
Googling, we did not find anyone else have this issue. Anyone can help?
Once the server is rebooted, server will be accessible again. We can then access the server through main IP. However, secondary IP is not accessible. The problem is, after about 10-15 minutes, the whole network is down again. As we are not physically at the DC, we cannot login locally to check the problem. We had to request for a reboot and then go in to remove the extra IP before network go down again.
This is really strange. We use cpanel to add the IP and we have done this many times without issue on cpanel installed on centos 5 and 6.
Googling, we did not find anyone else have this issue. Anyone can help?