A while ago leak scan showed that some Linux virtual machine server program, the openssh need to upgrade, for example, is due to the internal server, don't have access to the Internet, using manual RPM package upgrades, apparently failed to upgrade, after being forced to install
Later discovered to restart the virtual machine, contact the operations staff directly close the virtual mechanical and electrical source, can't normal into the system, after the last stop reading article interface:
See the cat/proc/version:
Uname -a:
After the original system is centos6.7, stop with the interface switch the console, enter the command line, see the/etc/redhat - release shows the version is centos7.8 2003:
The above command line, type the command also not show only blind knock,
Then cut back to read interface, found suggest that version has changed:
Enter the command line at present, many of the program cannot be started, configure the network restart fails, oracle service cannot be started,
I doubt is to upgrade, the related services to upgrade to 7.8, but there is a problem of significant upgrades, my Linux system operational experience, outstanding after online search, so Posting to ask for help, please mention solution or a solution, thank you!