Differences between revisions 27 and 80 (spanning 53 versions)
Revision 27 as of 2017-12-04 13:15:05
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Revision 80 as of 2021-11-01 10:16:55
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== guest_cleanup.sh ==
missing option to replace hostname properly

== live disk resize ==
== Various Articles ==
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seems to work

* https://eioki.eu/2013/07/02/live-resize-libvirt-disk-lvm-multipath
 * https://eioki.eu/2013/07/02/live-resize-libvirt-disk-lvm-multipath (tested and works, no downtime on guest)
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 * debug io trouble: sysstat package + iosat -x 2 5 http://bencane.com/2012/08/06/troubleshooting-high-io-wait-in-linux/ do a page on debugging iostat and how to solve
 * http://thomasmullaly.com/2014/11/16/the-list-of-os-variants-in-kvm/
 * http://lists.gluster.org/pipermail/gluster-users/2015-February/020798.html
 * https://www.linux.com/news/carp-your-way-high-availability
 * https://www.server-world.info/en/note?os=Debian_9&p=mariadb&f=1
 * http://galeracluster.com/documentation-webpages/sslconfig.html
 * http://galeracluster.com/documentation-webpages/sslcert.html
 * http://galeracluster.com/documentation-webpages/sslconfig.html#securing-replication-traffic
 * http://galeracluster.com/documentation-webpages/sslcert.html
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=== misc ===
This is all that has no yet been done or documented.
== misc ==
 * IOMMU enable: https://us.informatiweb.net/tutorials/it/9-bios/215--enable-iommu-or-vt-d-in-your-motherboard-bios.html
 * Mailserver
 * Firewall
 * Monitoring diskspace
 * Network planning
 * Keyscript should try thrice
 * Create a page about manual DNSs updates and nsupdate
 * Spice and TLS write a ssection about spice and TLS, check this to set up the TLS certificates on kvm02 /etc/libvirt/qemu.conf
 * KVM guest types are in package osinfo-db
 * move gluster07 to dedicated hardware, so the arbiter works as expected.
 * Do some pages on optimizations, this is both network, diskio etc. BUT redundancy and stability comes first.
 * Do some pages on security, for now redundancy comes first
 * virsh capabilities to check what the hardware can do
 * debian package, debian-goodies, contains command checkrestart
 * spice compression protocols https://libvirt.org/formatdomain.html#elementsGraphics
 * describe the use of debian command "virt-host-validate"
 * describe installing XP, floppy, and remove floppy when cloning
 * https://bugzilla.redhat.com/show_bug.cgi?id=1058526
 * describe installing win7, two cdroms, but set up as disks with device=cdrom instead of --cdrom option
 * spice protocol https://www.spice-space.org/spice-user-manual.html
 * spice clients https://virt-manager.org/download/
 * take a look at mandos to boot from encrypted root filesystem
 * perhaps we should change to powerdns at some point, since it can run a master/master setup
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 * mailserver
 * firewall
 * monitoring diskspace
 * disable saving .debs af download
 * configure apt to remove .deb files after download /var/cache/apt/archives/
 * network planning
 * keyscript should try thrice
 * lower memory after installation
 * delete all crm configuration "rm /var/lib/heartbeat/crm/cib*"
 * https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.cdot-famg-nfs%2FGUID-0D282583-0A6F-4556-AF94-4B08FC5ADDE8.html
 * https://wiki.debian.org/OpenStackCephHowto
 * ceph, drbd, tahoe-lafs, moosefs, sheepdog, petasan
 * bug in virt-clone https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=947150
 * https://www.dedoimedo.com/computers/kvm-bridged.html
 * https://www.dedoimedo.com/computers/kvm-intro.html --accelerate
 * syncthing on central server https://theselfhostingblog.com/posts/how-to-set-up-a-headless-syncthing-network/
 * https://wiki.libvirt.org/page/Networking
 * https://unix.stackexchange.com/questions/148794/how-to-create-kvm-guest-with-spice-graphics-but-tls-disabled-using-virt-install
 * Debian does raid resync on sundays, https://serverfault.com/questions/255544/reason-for-automatic-raid-resync
 * https://www.techspot.com/guides/287-default-router-ip-addresses/
 * https://www.youtube.com/watch?v=_yIq3GM4gjA
 * https://serverfault.com/questions/9708/what-is-a-pem-file-and-how-does-it-differ-from-other-openssl-generated-key-file
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alternative bridge settings might be required
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Space used on vanilla
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg1-root 1,9G 791M 954M 46% /
/dev/md0 243M 53M 162M 25% /boot
# bridging eth0 as br0
auto br0
iface br0 inet dhcp
        # bridge specific settings
        #bridge_stp on
        #bridge_maxwait 0
        #bridge_fd 0
        #bridge_ports eth0
        bridge_ports eth0
        bridge_fd 9
        bridge_hello 2
        bridge_maxage 12
        bridge_stp off
        # network settings
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mail
we will configure this system with a mail server
this server will later be configured to forward its mails to another mail account

* write a ssection about spice and TLS, check this to set up the TLS certificates on kvm02 /etc/libvirt/qemu.conf



http://thomasmullaly.com/2014/11/16/the-list-of-os-variants-in-kvm/
 * https://fedoraproject.org/wiki/Xfce
 * https://community.volumio.org/t/raspberry-pi-zero-w-and-buildin-bluetooth-chip-not-detected/7312/8
 * https://www.youtube.com/watch?v=Ow5rhYTbT34
 * spice client for windows systems: https://virt-manager.org/download/

TODO

Various Articles

misc

alternative bridge settings might be required

# bridging eth0 as br0
auto br0
iface br0 inet dhcp
        # bridge specific settings
        #bridge_stp on
        #bridge_maxwait 0
        #bridge_fd 0
        #bridge_ports eth0
        bridge_ports eth0
        bridge_fd 9
        bridge_hello 2
        bridge_maxage 12
        bridge_stp off
        # network settings

None: TODO (last edited 2024-05-14 20:31:59 by Kristian Kallenberg)