MK Wiki EN - Recent changes [en]

NodeJS

MkWikiEnSysOp — Wed, 10 Jun 2026 05:32:53 GMT

Added Trouble Shooting

← Older revision		Revision as of 05:32, 10 June 2026
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	* [https://github.com/solderjs/nodejs-ssl-example solderjs / nodejs-ssl-example @ GitHub]		* [https://github.com/solderjs/nodejs-ssl-example solderjs / nodejs-ssl-example @ GitHub]
	* [https://stackoverflow.com/questions/5998694/how-to-create-an-https-server-in-node-js How to create an HTTPS server in Node.js? @ stackoverflow]		* [https://stackoverflow.com/questions/5998694/how-to-create-an-https-server-in-node-js How to create an HTTPS server in Node.js? @ stackoverflow]

			== Trouble Shooting ==

			=== Fixing "Error: libnode.so.108: cannot open shared object file: No such file or directory" ===

			This can happen after an upgrade of NodeJS.
			cd to directory with app and execute

			npm clean-install

	[[Category:Linux]]		[[Category:Linux]]

Linux Networking

MkWikiEnSysOp — Mon, 08 Jun 2026 12:47:59 GMT

Set default IPv6 gateway: Added missing words

← Older revision		Revision as of 12:47, 8 June 2026
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	== Set default IPv6 gateway ==		== Set default IPv6 gateway ==

	ip -6 r a ''gateway'' dev ''iface''		ip -6 r a default via ''gateway'' dev ''iface''

	~~''gateway'' '''must not''' be a link local address (that is one that starts with "fe80")!~~

	== IPv4 forwarding and NAT ==		== IPv4 forwarding and NAT ==

LXC

MkWikiEnSysOp — Fri, 05 Jun 2026 13:19:56 GMT

AppArmor problems when running Ubuntu 24.04 on Debian 11/12 host: Added config lines required for Debian 13

← Older revision		Revision as of 13:19, 5 June 2026
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	== Common problems ==		== Common problems ==

	=== AppArmor problems when running Ubuntu 24.04 on Debian 11/12 host ===		=== AppArmor problems when running Ubuntu 24.04 on Debian 11/12/13 host ===

	Add this section to <code>/etc/apparmor.d/abstractions/lxc/container-base</code>:		Add this section to <code>/etc/apparmor.d/abstractions/lxc/container-base</code>:
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	pivot_root /run/systemd/mount-rootfs/ -> /run/systemd/mount-rootfs/**,		pivot_root /run/systemd/mount-rootfs/ -> /run/systemd/mount-rootfs/**,
	pivot_root /run/systemd/mount-rootfs/ -> /run/**,		pivot_root /run/systemd/mount-rootfs/ -> /run/**,

			## For Debian 13
			# Allow the container to use its own root as a source for sandboxing
			mount options=(rw, rbind) / -> /run/systemd/mount-rootfs/,
			# Allow systemd to mount internal paths from the container's perspective
			mount options=(rw, rbind) / -> /run/systemd/mount-rootfs/,

	Credits: [https://gemini.google.com/share/5ee155a48492 Chat with Gemini]		Credits: [https://gemini.google.com/share/5ee155a48492 Chat with Gemini]

Category:Ubuntu

MkWikiEnSysOp — Thu, 04 Jun 2026 12:06:34 GMT

Created category page

New page

Pages in this category cover topics about the Ubuntu operating system.

* https://ubuntu.com/
* https://distrowatch.com/ubuntu

Category:Debian

MkWikiEnSysOp — Thu, 04 Jun 2026 12:03:57 GMT

Created page with "Pages in this category cover topics about the Debian operating system. * https://www.debian.org/ * https://distrowatch.com/debian"

New page

Pages in this category cover topics about the Debian operating system.

* https://www.debian.org/
* https://distrowatch.com/debian

Debian Upgrades

MkWikiEnSysOp — Thu, 04 Jun 2026 12:02:00 GMT

Added category Debian

← Older revision		Revision as of 12:02, 4 June 2026
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	[[Category:Linux]]		[[Category:Linux]]
			[[Category:Debian]]

Ubuntu Upgrade Jammy To Noble

MkWikiEnSysOp — Thu, 04 Jun 2026 12:01:07 GMT

Improved formatting

← Older revision		Revision as of 12:01, 4 June 2026
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	Upgrading Ubuntu from Jammy Jellyfish/22.04 to Noble Numbat/24.04		Upgrading Ubuntu from '''Jammy Jellyfish/22.04''' to '''Noble Numbat/24.04'''

	== Apache ==		== Apache ==

Ubuntu Upgrades

MkWikiEnSysOp — Thu, 04 Jun 2026 12:00:21 GMT

Initial version covering upgrade from Ubuntu 22.04 to Ubuntu 24.04

New page

Upgrading Ubuntu versions does not always work hassle-free. Sometimes, some applications do not work after upgrade and manual work is required.

{| class="wikitable"
|+ Caption text
|-
!colspan="2"| From version !!colspan="2"| To version !! Article
|-
| 22.04 || Jammy || 24.04 || Noble || [[Ubuntu Upgrade Jammy To Noble]]
|}

The '''next non-LTS version''', Ubuntu 26.10, is expected in October 2026. It will be supported until July 2027.
The '''next LTS version''', Ubuntu 28.04, is expected in April 2028. It will be supported until April 2033.

[[Category:Linux]]
[[Category:Ubuntu]]

Ubuntu Upgrade Jammy To Noble

MkWikiEnSysOp — Thu, 04 Jun 2026 11:43:41 GMT

When running inside an LXC container: Formatting

← Older revision		Revision as of 11:43, 4 June 2026
(One intermediate revision by the same user not shown)
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	Upgrading Ubuntu from Jammy Jellyfish/22.04 to Noble Numbat/24.04		Upgrading Ubuntu from Jammy Jellyfish/22.04 to Noble Numbat/24.04

	== Apache ~~and~~ PHP ==		== Apache ==

			=== When running inside an LXC container ===

			systemctl edit apache2.service

			[Service]
			PrivateDevices=false
			PrivateTmp=false
			ProtectControlGroups=false
			ProtectKernelModules=false
			ProtectSystem=false

			=== PHP ===

	a2dismod php8.1		a2dismod php8.1

Linux Networking

MkWikiEnSysOp — Tue, 02 Jun 2026 06:08:52 GMT

Added IPv4 forwarding and NAT

← Older revision		Revision as of 06:08, 2 June 2026
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	''gateway'' '''must not''' be a link local address (that is one that starts with "fe80")!		''gateway'' '''must not''' be a link local address (that is one that starts with "fe80")!

			== IPv4 forwarding and NAT ==

			Check if IPv4 forwarding is activated:

			sysctl net.ipv4.conf.all.forwarding

			On demand run

			sysctl -w net.ipv4.conf.all.forwarding=1

			Perform NAT on the interface that has Internet connection using iptables:

			iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE

	== IPv6 forwarding ==		== IPv6 forwarding ==

Debian Upgrade Bookworm To Trixie

MkWikiEnSysOp — Sun, 31 May 2026 19:33:28 GMT

Added saslauthd

← Older revision		Revision as of 19:33, 31 May 2026
(One intermediate revision by the same user not shown)
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	apt -y install libapache2-mod-php8.4 php8.4-mysql		apt -y install libapache2-mod-php8.4 php8.4-mysql

			After that

			a2enmod php8.4

			is required to enable the module.

	== nginx SSL ==		== nginx SSL ==
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	[https://futurestud.io/tutorials/nginx-how-to-fix-ssl-directive-is-deprecated-use-listen-ssl Credits]		[https://futurestud.io/tutorials/nginx-how-to-fix-ssl-directive-is-deprecated-use-listen-ssl Credits]

			== saslauthd ==

			In <code>/etc/systemd/system/saslauthd.service.d/override.conf</code>:

			[Service]
			PIDFile=/var/spool/postfix/var/run/saslauthd/saslauthd.pid

	[[Category:Linux]]		[[Category:Linux]]

LetsEncrypt

MkWikiEnSysOp — Wed, 20 May 2026 05:50:00 GMT

Installation using Python infrastructure: Added "Troubleshooting missing dependency to libaugeas"

@@ Line 40: / Line 40: @@
   source certbotenv/bin/activate
   pip3 install certbot ''certbot-nginx certbot-apache''
 == Getting a certificate ==

Nftables

MkWikiEnSysOp — Tue, 19 May 2026 18:59:22 GMT

Sets: Formatted properly

← Older revision		Revision as of 18:59, 19 May 2026
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	== Sets ==		== Sets ==

	~~<code>~~		table inet filter {
	table inet filter {		# adding: nft add element inet filter privileged_hosts { 1.2.3.4 }
	# adding: nft add element inet filter privileged_hosts { 1.2.3.4 }		# removing: nft delete element inet filter privileged_hosts { 1.2.3.4 }
	# removing: nft delete element inet filter privileged_hosts { 1.2.3.4 }		set privileged_hosts {
	set privileged_hosts {		type ipv4_addr
	type ipv4_addr		flags interval
	flags interval		elements = { 1.2.3.5 }
	elements = { 1.2.3.5 }		}
	}
			set tcp_ports_always_allowed {
	set tcp_ports_always_allowed {		type inet_service
	type inet_service		flags interval
	flags interval		elements = { 80, 443 }
	elements = { 80, 443 }		}
	}
			set tcp_ports_privileged {
	set tcp_ports_privileged {		type inet_service
	type inet_service		flags interval
	flags interval		elements = { 22 }
	elements = { 22 }		}
	}
			chain input {
	chain input {		type filter hook input priority 0; policy drop;
	type filter hook input priority 0; policy drop;		ct state established,related accept
	ct state established,related accept		ct state invalid drop
	ct state invalid drop
			# loopback interface
	# loopback interface		iifname lo accept
	iifname lo accept		iifname lxcbr0 accept
	iifname lxcbr0 accept
			tcp dport @tcp_ports_always_allowed accept
	tcp dport @tcp_ports_always_allowed accept		tcp dport @tcp_ports_privileged ip saddr @privileged_hosts accept
	tcp dport @tcp_ports_privileged ip saddr @privileged_hosts accept		tcp dport @tcp_ports_always_allowed ip6 saddr $allow_ip6s accept
	tcp dport @tcp_ports_always_allowed ip6 saddr $allow_ip6s accept		}
	}
			chain forward {
	chain forward {		type filter hook forward priority 0; policy accept;
	type filter hook forward priority 0; policy accept;		}
	}		chain output {
	chain output {		type filter hook output priority 0; policy accept;
	type filter hook output priority 0; policy accept;		}
	}		}
	}
	~~</code>~~

	"flags interval" enables adding multiple elements, like subnets (127.0.0.0/8) or port ranges (8080-8099).		"flags interval" enables adding multiple elements, like subnets (127.0.0.0/8) or port ranges (8080-8099).

	[[Category:Linux]]		[[Category:Linux]]