DASKAjA's questions

I'm running mostly Ubuntu VMs in an vSphere cluster where a VLAN is managed by a Windows DHCP and DNS. From the Ubuntu VMs I can update the DNS records in the Windows DNS to point the dynamic IP to its hostname (set in /etc/hostname) with dhcp-identifier: mac addition in /etc/netplan/00-installer-config.yaml:

cat /etc/netplan/00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  ethernets:
    ens160:
      dhcp4: true
      dhcp-identifier: mac
  version: 2

After these modification a call to dhclient -r also updates the DNS record to point to the newly dhcp-assigned IP address.

But now I want to achieve the same DNS update functionality in a CentOS 7 VM. First I setted /etc/hostname to myhost.example.tld and rebooted the machine. After that I tried to change serveral variables in /etc/sysconfig/network-scripts/ifcfg-ens192:

• Setting MACADDR to either preserve or permanent
• Setting DHCP_HOSTNAME to myhost but not DHCP_FQDN
• Setting DHCP_FQDN to myhost.example.tld but not DHCP_HOSTNAME

Every change to ifcfg-ens192 were followed by the invocation of dhclient -r ens192; dhclient ens192 and a reboot.

I run gitlab in a docker container and it separates its dependencies (MySQL, Redis, Mailserver) quite nicely into separate docker containers. Running them is not a problem, I start them in reverse order: the dependencies first, than gitlab itself.

From time to time I have to restart the docker host. Currently I ssh into the docker host and manually restart the containers. Is there a better way for it? Like just tell some service to start the gitlab container and it takes care of starting its dependencies first? I know I can create individual init scripts for each docker container, but that's not what I'm looking for.

Is there a website where I can enter a software package (for example Apache) and select a CentOS version number and get the version number of Apache which comes with the selected CentOS distribution?

I'm currently writing my thesis at a big company, with an even bigger corporate firewall. So I've to save my work on an USB flash drive. Now I'm searching for a backup solution for that flash drive and don't want to do this manually. Does somebody know how to run a program / bash file when this specific USB device id connects to my computer so I can automate the rest of the process?

I'm searching for a intranet search engine which is capable of spider our intranet websites and network shares like SMB, NFS and optionaly AFP.

Ever better for us would be a search engine which is extendable via plugins like the Spotlight framework on Mac OS X.

Does somebody know something like this? Most of the results I've found so far are only capable of spidering websites.