| Security – Error installing Kali: “Installation step failed” |
When I was installing a Kali virtual machine, I came across an error in the “Software selection” step
After confirming the software, the installation shows an “Installation step failed” message.
After browsing through some sites and forums, apparently the problem could be related to not configuring enough space and a suggestion is configuring more than 30-40 GB. But no luck, … Read more
| Exchange – A reboot from a previous installation is pending |
When updating Exchange you probably con come across the following error in the prerequisite analysis:
A reboot from a previous installation is pending
The way to solve it is supposed to be by rebooting the server in order to apply any previously pending installed windows updates or whatever… but it never works, at least for me.
If it is also … Read more
| Linux – rsyslog: parsing and splitting message fields |
Until now I hadn’t used the options and features rsyslog comes with. Let me show a simple example I have done today. This is an example log line rsyslog has received from iptables (I have configured iptables to log certain connections attempts to identify and save devices with malware):
Sep 29 15:30:39 myserver kernel: [malware3] IN=ens192 OUT=ens192 MAC=XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX SRC=10.15.13.17 |
| Linux – Simple DNS server using DNSmasq |
This article offers a 5 min howto about configuring your own DNS server (perhaps for your company or maybe for your home network) using DNSmasq. Obviously, only the surface is covered on this post.
Given my router does not allow me to add host entries for local DNS resolution, I decided to use DNSMasq on one of my internal network … Read more
| Icinga – Notification template with notes support |
I have just configured an Icinga2 notification template for hosts and services to replace the ugly and impractical default one.
Not big things but useful in my opinion
UTF Icons are included depending on the state of the host or service
This notifications scripts can include … Read more
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| Linux – SQL Server command line to perform queries (mssql-cli) |
There are different methods to run queries against an SQL Server from a Linux machine. The one I am using is mssql-cli (https://github.com/dbcli/mssql-cli)
As you can check in the related github website, it has the following features:
It has been packetized for a lot of distributions … Read more
| Exchange – Bulk import of distribution group members from csv |
A short but useful post:
Suppose you need to import hundreds of members to a distribution group.
The list is in a CSV file:
Name,Email
user1,user1@domain1.com
user2,user2@domain2.com
user3,user3@domain3.com
user4,user4@domain4.com
user5,user5@domain5.com
user6,user6@domain6.com
user7,user7@domain7.com
user8,user8@domain8.com
user9,user9@domain9.com
user10,user10@domain10.com
user11,user11@domain11.com
user12,user12@domain12.com
user13,user13@domain13.com
user14,user14@domain14.com
user15,user15@domain15.com
user16,user16@domain16.com
user17,user17@domain17.com
user18,user18@domain18.com
...
To bulk import all the users, a simple command like this is enough:… Read more
| Home Server (9) – Upgrade HP Microserver Gen8 CPU |
Im using my Microserver Gen8 a lot and, sometimes the poor performance of the CPU is noted (when showing galleries with many images for example). So I decided to replace it by another better one.
I chose the cpu model based on this resource
Those are compatible CPU with different performances prices and all of them … Read more
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| Home Server (8) – Update iLO4 firmware (HTML5 console) |
In this post, I show how I update my Microserver Gen8 iLO4 version. One of the ways to do it is via command line but i decided to use the web interface (the most common way).
At the time of writing this, the version i had was iLO 2.50 (Sep 23 2016) and the new version is … Read more
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| Home Server (5) – VMWare ESXi 6.5 installation |
5th post of the Home Server series in which I explain how I built my own server.
In previous posts I have shown how to install an SSD disk to your HP microserver Gen8 server. Even if you do not have this hardware, in this post I will show step by step how to install the VMWare ESXi 6.5
