How to change NTP server on HP 3PAR 7200c

Recently I had to add more NTP servers to a HP 3PAR 7200c storage. Here’s how I did it: 3PAR_hostname cli% setnet ntp -add 10.90.221.13 NTP server successfully updated. Show current NTP server(s): 3PAR_hostname cli% shownet IP Address Netmask/PrefixLen Nodes Active Speed Duplex AutoNeg Status 10.23.155.8 255.255.255.192 01 1 1000 Full Yes Active Default route : 10.23.155.1 NTP server : {} 10.102.102.132 10.102.102.133 10.90.221.13 DNS server : None Remove one NTP server:...

September 19, 2020 · 1 min · 190 words · costin

How to bypass Chrome error "Your connection is not private"

If you’re an IT professional that has to deal with old systems that have self-signed certificates you most probably had to add exceptions to your browser many times. Maybe even import those self-signed certificates locally. Unfortunately when you’re working on a customer’s jump host this is not an option. And starting with more recent version of Chrome this is not possible anymore, you don’t have the option to Add it as an exception....

June 30, 2020 · 1 min · 149 words · costin

How to quickly enable a low-resource webserver

Have you ever wanted to just start a Webserver in a second, for a quick and dirty task but didn’t want to install a full LAMP/LEMP stack? This is possible with the help of a python module and here it is in action: costin@ubuntu:~$ mkdir testare costin@ubuntu:~$ cd testare/ costin@ubuntu:~/testare$ echo MERGE! > index.html costin@ubuntu:~/testare$ pushd $PWD; python3 -m http.server; popd ~/testare ~/testare Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ....

April 29, 2020 · 1 min · 145 words · costin

How to create a SSL profile when you don't know the key passphrase

On F5 BigIP LTM you can create a SSL profile even if you don’t know the private key passphrase This workaround can be applied only if you’ve used the private key on the same F5 BigIP node already. In my case, I had to reuse the same cert+key from a server-ssl profile on a client-ssl profile. And because business was in a hurry and they didn’t have the private key anymore, I had to find alternative ways of making it work....

February 24, 2020 · 2 min · 307 words · costin

How to fix do-agent exited with a return code 100

So recently I’ve encountered the error in the subject. This came after 2 major changes (OS upgrade and PHP upgrade). So definitely it had to do with one of them. My money were on the first one. I’ve looked around on the internet and the only thing I could see was this old article that had no solution: https://www.digitalocean.com/community/questions/do-agent-exited-with-a-return-code-100 So I knew I had to take the matters in my own hands....

February 16, 2020 · 4 min · 777 words · costin