It has been a while since my last blog post, but there was no real foo happening to me during that time. But this issue really gave me some heartburn. Let’s start with the general setup. We have a Linux VM in an OpenVZ environment. The hoster is Strato in Germany, but I don’t think… Continue reading OpenVPN in Ubuntu 18.04 Foo within OpenVZ Container (Strato)
I chose a nice Friday evening and a good Scotch to upgrade an older Ubuntu LTS to the latest and greatest. And all went well, until I wanted to connect one of the clients via VPN. All I saw was this nasty little line in the log files of the server … VERIFY ERROR: depth=0,… Continue reading OpenVPN 2.4 CRL Expired Foo
Sending email in Linux is pretty straight forward, once an email server is set up. Just use mutt or mail and all is good. But sometimes you actually want to test if SMTP is working correctly. And not only on your box, but on a remote box. That is of course easy using a MUA… Continue reading Send Email from the Command Line using an External SMTP Server
After moving a server to a new machine with Ubuntu 16.10 I received some strange Postfix SMTP errors. Which turned out to be a connection issue to the MySQL server: postfix/cleanup: warning: connect to mysql server 127.0.0.1: Too many connections Oops, did I forgot to up max_connections during the migration:
I think I am a little bit late, but I finally took the plunge and am now the (hopefully) proud owner of a smartwatch. Not sure how smart this little gizmo is, but at least it looks neat. But first to the decision itself. It is not, that I don’t have a watch. Actually, I… Continue reading Huawei Smartwatch Experiment
Let me try something new. Just some nice pictures from our Labor Day weekend in Calabash, NC. Nothing special… just pictures.
It was that time of the year, when I had to renew some SSL certificates. Renewing and updating them in the server is a nice and easy process. But checking, whether the server is delivering the correct certificate and, that I updated and popluated the intermediate certificates correctly, is a different story.
While debugging my check disk problem after the 15.10 upgrade, I saw that I forgot to enable external commands. That is handy, when you want to re-schedule a check to see, if your changes took effect. Again, something that is easily activated. So if you see something like this, then you might want to make… Continue reading Nagios Enabling External Command on Debian based Distributions
Another day another foo, this time done to the check_disk plugin for Nagios on Ubuntu. After updating to 15.10 my disk space check all of a sudden failed with this one here: DISK CRITICAL – /sys/kernel/debug/tracing is not accessible: Permission denied
Finally the Owncloud people got their updater to work for me, and I went ahead and updated. As a result I had to make some tweaks to CloudPress to keep my users active. Check it out and let me know if it works for you. Find my this new version here.