After upgrading Postgres to version 9.4 in VM using container service failed to start with following message: Quick search pointed to lack of shared memory, but I had more than enough. It turned that fix is to change dynamic_shared_memory_type from …
Postgres 9.4 failed to start in container – How to Fix Read more »
If you installed CentOS 7 minimal you might see following error message when you try to use ifconfig to see your ip address: If you search for the package it is in net-tools package In case you do not want …
Centos 7 how to fix -bash: ifconfig: command not found Read more »
phpMyAdmin is a tool written in php intended to handle administration of MySQL servers over the web interface. When trying to import large SQL dumps you might see following message: Maximum execution time of 300 seconds exceeded If you are …
Recently I’ve upgraded ZFS on Linux to 0.6.3 on my CentOS 7 server. After reboot my pool was not available and I was only capable to force the import. In the logs I had: After quick search on the Internet …
zfs-import-cache.service fails on startup – How to Fix Read more »
If you are administering nix server you’ve probably noticed that root account is used by default for many system emails. If you did set email forwarding you already received them, but in case you did not the folder continues to …
With my new server I wanted to install LAMP stack so I can test WEB applications locally. Just to note that in CentOS 7 it is not exactly classic LAMP (Linux Apache MySQL PHP), but new LAMP ( Linux Apache …
After I’ve created my home server I’ve tried to change it’s host name by going to /etc/sysconfig/network. For my surprise it was empty. Then I’ve recalled that in version 7 CentOS started using systemd. Hence the location changed. New place …
CentOS 7 is out and I wanted to test it on real hardware. Unfortunately most of current methods to transfer bootable ISO to USB key in MS windows environment do not work (see quote below) or boots, but does not …
How to create bootable USB key for CentOS 7 installation Read more »
In case you need to disable IPv6 and cannot afford to restart here are the commands to quickly do it for CentOS: echo “net.ipv6.conf.default.disable_ipv6 = 1” >> /etc/sysctl.conf echo “net.ipv6.conf.all.disable_ipv6 = 1” >> /etc/sysctl.conf sysctl -p
In some of my projects I use OpenVZ to create containers. One of the tools I use to create backup of running container is vzdump from proxmox.com. Unfortunately rpm provided is older version and latest provided only as debian package. …