After a minimal installation of CentOS 6 or 7 selinux is active and denies the SSH server to open the authorized_keys file. This can be fixed without deactivating selinux: cd /root chcon -R --type=ssh_home_t .ssh

I configured the fail2ban service to send out an automatic abuse email to the abuse contact for the IP range. To detect the right abuse contact the abusix.org service is queried.The following system tools need to be installed: At first configure a new action target, a new default action and make sure that mta is ... Weiterlesen

This Puppet module could be called the following way: # load the Linux kernel module ipmi_devintf kernel_module { 'ipmi_devintf': ensure => present } /etc/puppet/modules/kernel_module/manifests/init.pp # Taken from: http://projects.puppetlabs.com/projects/1/wiki/Kernel_Modules_Patterns # Made it work under $osfamily rhel define kernel_module ($ensure) { case $osfamily { redhat: { if ! defined(File["/etc/rc.modules"]) { file { "/etc/rc.modules": ensure => present, owner ... Weiterlesen

To print the actual mapping between the virtual interfaces (vnet0 - vnetXY) and the running virtual machines you can use the following command. It should work on all Linux distributions running KVM and libvirt. for vm in $(virsh list | awk '{if ((NR >= 3) && (NF >=1)) print $2}'); do vm_config=$(virsh dumpxml $vm); for ... Weiterlesen