KVM:NFS Permission denied

A NFS storage is configured for saving the VM disks.When start the VM on the hosts, the terminal promote an error that  no permitttion to access the NFS storage.The error seems like this: “internal error Process exited while reading console log output: char device redirected to /dev/pts/4     qemu-kvm: -drive file=/var/lib/libvirt/images/nfs/CentOS-7.6.qcow2,format=qcow2: could not open disk image … Continue reading “KVM:NFS Permission denied”

linux kvm storage

The directory /var/lib/libvirt/images usually is for the kvm storage, but its capability is  a limitation and cannot meet the requirement of vms. There are two ways to fix the disk capability problem.One is increase the capability of the directory /var ,before installation or adjusting it after installation. The other way is redirect the kvm storage destination … Continue reading “linux kvm storage”

auditd.conf(8) – Linux man page

Name auditd.conf – audit daemon configuration file Description The file /etc/auditd.conf contains configuration information specific to the audit daemon. It should contain one configuration keyword per line, an equal sign, and then followed by appropriate configuration information. The keywords recognized are: log_file, log_format, flush, freq, num_logs, max_log_file, max_log_file_action, space_left, action_mail_acct, space_left_action, admin_space_left, admin_space_left_action, disk_full_action, and disk_error_action. These keywords are described below. log_file This keyword specifies the full path name to the … Continue reading “auditd.conf(8) – Linux man page”

X86_64 Linux Syscall Table

Searchable Linux Syscall Table for x86 and x86_64 Reference: https://filippo.io/linux-syscall-table/ Linux command: ausyscall –dump There are some tables like this around, but they are usually cool auto-generated hacks and that has the downfall of not distinguishing what of the different implementations is the correct one, etc. So, here is a lovingly hand-crafted Linux Syscall table … Continue reading “X86_64 Linux Syscall Table”