Bei der VPN-Konfiguration meines Notebooks (Verbindung zu einem CentOS L2TP\/IPSEC VPN Gateway) kam es zu gr\u00e4\u00dflichen, einen schier in den Wahnsinn treibenden Verbindungsproblemen.<\/p>\n
Nachdem ich mit<\/p>\n
sudo ifconfig ppp0 mtu xxxx<\/p><\/blockquote>\n
den korrekten MTU-Wert mehr oder minder erraten hatte (bei mit war das 1200), wollte ich die \u00c4nderung permanent machen, also nach dem Verbindungsaufbau automatisch setzen, was der Network-Manager mir aber leider nicht erlaubte.<\/p>\n
Die L\u00f6sung ist das anlegen eines Scripts:<\/p>\n
user@host:~$\u00a0cat \/etc\/NetworkManager\/dispatcher.d\/02setvpnmtu<\/p>\n
if [ „$1“ = „ppp0“ ] ; then<\/p>\n
ifconfig ppp0 mtu 1200<\/p>\n
fi;<\/p><\/blockquote>\n
mit den folgenden Benutzerrechten:<\/p>\n
user@host:~$ ls -la \/etc\/NetworkManager\/dispatcher.d\/02setvpnmtu
\n-rwxr-xr-x 1 root root 58 Jul 25 22:20 \/etc\/NetworkManager\/dispatcher.d\/02setvpnmtu<\/p><\/blockquote>\nJetzt disconnect, reconnect, ein paar Sekunden warten und den MTU-Wert checken mit<\/p>\n
ifconfig ppp0 | grep MTU<\/p><\/blockquote>\n
done.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"
Bei der VPN-Konfiguration meines Notebooks (Verbindung zu einem CentOS L2TP\/IPSEC VPN Gateway) kam es zu gr\u00e4\u00dflichen, einen schier in den Wahnsinn treibenden Verbindungsproblemen. Nachdem ich mit sudo ifconfig ppp0 mtu xxxx den korrekten MTU-Wert mehr oder minder erraten hatte (bei mit war das 1200), wollte ich die \u00c4nderung permanent machen, also nach dem Verbindungsaufbau automatisch […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15,4],"tags":[],"class_list":["post-3145","post","type-post","status-publish","format-standard","hentry","category-produktionen","category-techtalk"],"_links":{"self":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts\/3145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/comments?post=3145"}],"version-history":[{"count":1,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts\/3145\/revisions"}],"predecessor-version":[{"id":3146,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts\/3145\/revisions\/3146"}],"wp:attachment":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/media?parent=3145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/categories?post=3145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/tags?post=3145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}