Cloudrouter 3.0 eval

trying out cloudrouter 3.0. Doesn’t seem like much of a router when it doesn’t have dhcp. How To Install DHCP Server on CentOS 7 https://devops.profitbricks.com/tutorials/deploy-outbound-nat-gateway-on-centos-7/          

compiling cacti-spine 0.8.8d with mariadb on centos6

get the other libraries snmp, ssl, etc yum install MariaDB-devel ln -s /usr/lib64/mysql/libmysqlclient_r.so.16.0.0 libmysqlclient_r.so ln -s /usr/lib64/mysql/libmysqlclient.so.16.0.0 libmysqlclient.so then compile if you get this error during make common.h:143:18: error: mib.h: No such file or directory then cp /usr/include/net-snmp/library/mib.h .

passwd: Authentication token manipulation error

Centos [[email protected] ~]# passwd Changing password for user root. New UNIX password: Retype new UNIX password: passwd: Authentication token manipulation error solved [[email protected] ~]# /usr/sbin/useradd aa useradd: unable to open password file [[email protected] ~]# chattr -i /etc/passwd [[email protected] ~]# /usr/sbin/useradd aa useradd: cannot open shadow password file [[email protected] ~]# lsattr /etc/passwd ————– /etc/passwd [[email protected] ~]# […]

CentOS 7 uses XFS now! How to Expand/extend your LVM

To my surprise CentOS 7 is now using XFS. I was trying to extend the LVM using my usual guide from VMware, resize2fs command spits out thi error: resize2fs: Bad magic number in super-block while trying to open /dev/centos/root Couldn’t find valid filesystem superblock use xfs_grow instead http://xmodulo.com/2014/09/manage-lvm-volumes-centos-rhel-7-system-storage-manager.html