VirtualTam's bookmarks
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2018-08-31 -
2018-07-04 Documentation:
- https://www.netfilter.org/documentation/index.html
- https://www.netfilter.org/documentation/HOWTO//netfilter-hacking-HOWTO.html
- https://www.netfilter.org/documentation/HOWTO//networking-concepts-HOWTO.html
- https://www.netfilter.org/documentation/HOWTO//NAT-HOWTO.html
- https://www.netfilter.org/documentation/HOWTO//packet-filtering-HOWTO.html
Articles:
- https://www.digitalocean.com/community/tutorials/how-the-iptables-firewall-works
- https://www.digitalocean.com/community/tutorials/how-to-list-and-delete-iptables-firewall-rules
- https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands
- https://www.digitalocean.com/community/tutorials/a-deep-dive-into-iptables-and-netfilter-architecture
- https://www.digitalocean.com/community/tutorials/how-to-choose-an-effective-firewall-policy-to-secure-your-servers
How-tos:
- https://wiki.centos.org/HowTos/Network/IPTables
- https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-iptables-on-ubuntu-14-04
Routing:
- https://www.frozentux.net/iptables-tutorial/iptables-tutorial.html
- https://www.frozentux.net/iptables-tutorial/images/tables_traverse.jpg
- https://www.frozentux.net/iptables-tutorial/images/table_subtraverse.jpg
- https://upload.wikimedia.org/wikipedia/commons/3/37/Netfilter-packet-flow.svg
RHEL Documentation:
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-common_iptables_filtering
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-forward_and_nat_rules
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-malicious_software_and_spoofed_ip_addresses
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-firewalls-iptables_and_connection_tracking
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/security_guide/sect-security_guide-iptables
- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/security_guide/sec-setting_and_controlling_ip_sets_using_iptables
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2018-06-29 -
- https://github.com/dfd-tud/deda
- https://github.com/dfd-tud/mihbs
- https://www.ihmmsec.org/cms/front_content.php?idcat=69&lang=2
- https://tu-dresden.de/ing/informatik/sya/ps/die-professur/news/geheime-daten-auf-dem-druckpapier-diplominformatiker-der-tu-dresden-entwickeln-verfahren-gegen-druckerueberwachung
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2018-06-28 Docker images:
- https://hub.docker.com/_/mediawiki/
- https://hub.docker.com/r/wikimedia/mediawiki-node-services/
- https://github.com/wikimedia/mediawiki-node-services
- https://hub.docker.com/r/thenets/parsoid/
- https://github.com/thenets/docker-parsoid
- https://hub.docker.com/r/pastakhov/restbase/
- https://github.com/pastakhov/docker-restbase
Visual Editor:
- https://www.mediawiki.org/wiki/VisualEditor
- https://www.mediawiki.org/wiki/Extension:VisualEditor
- https://www.mediawiki.org/wiki/Parsoid
- https://www.mediawiki.org/wiki/Parsoid/Setup
- https://www.mediawiki.org/wiki/RESTBase
- https://www.mediawiki.org/wiki/RESTBase/Installation
Compose examples:
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2018-06-07 -
2018-06-06 -
2018-06-06 -
2018-05-07 -
2018-05-06 You broke the build https://cdn-images-1.medium.com/max/1200/1*oEv-Ze3mwMgvx0Gk5Ce91A.jpeg I know Continuous Integration https://memegenerator.net/img/instances/81767213/i-know-continuous-integration.jpg So easy https://memegenerator.net/img/instances/67239657/continuous-integration-so-easy-a-caveman-can-do-it.jpg Engage https://memegenerator.net/img/instances/72078018/continuous-integration-engage.jpg
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2018-05-03 -
Here are the steps I used to migrate a CentOS 7 VM from (presumably?) an ESXi server, to a local VirtualBox environment.
The LVM volumes were not detected at boot, and after the boot timeout, the OS fell back to the Dracut emergency shell.
- get a CentOS minimal installation CD
- check the VM's resources and peripherals:
- ensure there are no floppy drives (!)
- setup CPU and RAM resources
- check virtual drives
- add an SCSI optical drive if needed
- optional: convert the virtual drive images from VMDK to VDI
- mount the CentOS installation disc
- boot on the installation disc:
- select "Troubleshooting", then "Rescue"
- let the rescue utility detect filesystems and mountpoints
$ chrootto the detected environment- backup files:
/etc/fstab/boot/grub/grub.cfg
- under /boot, backup the initrd and initramfs for the current configuration (these will be overwritten)
- compare the current
/etc/fstabwith the output of$ lsblkand$ blkid - if needed, manually edit /etc/fstab to use the appropriate block device UUIDs, identifiers and mountpoints
- regenerate GRUB configuration:
$ grub2-mkconfig -o /boot/grub2/grub.cfg
- if needed, reinstall GRUB:
$ grub-install /dev/sda
- rebuild initrd:
$ mkinitrd --force /boot/<initrd_image> <kernel_version>
- rebuild initramfs:
$ dracut --force <kernel_version>
- exit the chroot
- unmount the installation disc
- reboot
- optional but highly recommended: cross your fingers
- ...
- profit!
