I wrote to the dovecot mailing list and after an email exchange it turned out that there is a config option already present that can help here to reduce the number of groups passed to setgroups(). Looking at them shows a lot of groups that macOS creates and assigns internally and which one can't (easily) delete $ id hwrħ01(.1),702(.2),30(_keytabusers),33(_appstore),100(_lpoperator),204(_developer),250(_analyticsusers),395(_ftp),103(_screensharing-disabled),104(_ssh-disabled) Reading the manpage for setgroups() revealed that this call fails when more than NGROUP_MAX (=16) groups are passed. But the imap client still could not login.ĭovecot.log showed a lot of messages Oct 11 08:10:27 imap(hwr) : Fatal: setgroups(501) failed: Too many extra groups First I saw that Dovecot did not correctly start because an very old pid file said it has pid 104 and indeed there was a process wit pid 104, so dovecot though that is itself and stopped.Īfter removing the pid file and restarting Dovecot, it started again and correctly listened on port 993 (imaps). Also here the upgrade went smooth, but in the evening I discovered that I did not get any new email. I upgraded my home server to macOS 10.14 after the upgrade on my laptop went very smooth. Solution was that I had a local address in the /ip ipsec peer and this meant that MikroTik would only allow for connections to that specific IP, which failed. I have after the good setup played a bit with the configuration (and not put it under version control and everything failed with "no IKEv1 peer config for". One thing I still had to enable was proxy-arp as described in the above guide to be able to reach not only the router, but also my real target host on my LAN. Once I enabled forwarding of these ports, both VPN on macOS and Android started to work like a charm. In the past I had poked some holes into this (but I log forgot since), but udp port 500 and others needed for IPsec were not forwarded to the MikroTik. And this guy also has a firewall and is filtering out ports. Find the GNS3 icon and click it to start GNS.If you look at the above setup, you can see that my MikroTik is not directly connected to the internet, but there is a provider router in-between. Select the Anywhere option under Allow apps downloaded from: Installation of GNS3 #Ĭlick on the downloaded DMG and drag the GNS3 icon to the Applications folder:Ĭlick on the Applications icon. Go to the Security & Privacy in System Preferences. Due to this, you need to allow the installation of applications from anywhere. GNS3 is distributed outside the Apple App Store. Allow installation of GNS3 before OSX Sierra # Click the Download button to download the Mac OS X package. In this guide, we will select the Mac installation. Or, if you already have an account, click Login, fill in the your details and then click Login & Continue:Īfter login, you will be prompted to select the version of GNS3 to download. If you have not already registered on the GNS3 site, create an account and then click Create Account & Continue: Using a web browser, browse to and click the Free Download link: GNS3 v2.1.9 is the last version that runs on OS X version 10.11 (El Capitan).įollow these steps to download GNS3 to you MAC. GNS3 officially supports the 3 latest versions of macOS (currently macOS 10.14 - Mojave to macOS 11.0 - Big Sur). This document explains how to install GNS3 using when a Mac OS X environment. Configure GNS3 to use an additional remote server.How to use applications with the GNS3 Web interface.Install an appliance from the GNS3 Marketplace.
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