Since my ISP blocks port 25, preventing me from running my own in-house email, I relay all my in-house emails and notifications generated from various components though the ISP email servers. This allows me to have internal components send messages to my in house server on 25 and those messages… Continue reading
SCEP (Simple Certificate Enrollment Protocol) is a standard solution for admins wishing to deploy certificates to devices with little interaction and no manual uploading/downloading of cert files between systems. NDES (Network Device Enrollment Service) is Microsoft’s implementation of SCEP. NDES and SCEP are essentially 2 labels for the same service…. Continue reading
My company uses MS Exchange 2013 for mail, contacts, calendars, and tasks. However, we have a lot of users on LInux desktops that can’t run Outlook. For others, the new Outlook 2013 is a horrible monstrosity of Flat icons on all all white background that burns your eyes after a… Continue reading
Yes, in Exchange 2013, users were given the ability to edit their user pictures that is stored in the LDAP for display on their profile across Microsoft’s suite of products. Seems like a harmless function right? Microsoft is so desperate to be viewed as a ‘cool social media like product’… Continue reading
I have had this issue come up a few times. I had the need to setup an employee’s laptop with access to an Exchange 2013 mailbox. However, the employee was using a laptop that was not a domain member and could not use autodiscover to automate Outlook setup. In Exchange… Continue reading
This took me way too long to research so I’m putting this here in case anyone can use it. I have an ASA 5520 that is used for IPSEC, Anyconnect, and Clientless WebVPN vpn clients. I was asked to track total # of sessions for the migration of licenses. Since… Continue reading
Openswan 2.6.37 Symptom: OpenSwan to Cisco ASA Site to Site Tunnel has one way traffic. Description: The Ipsec Tunnel builds, both the openswan host and the ASA show the tunnel up but traffic only flows from the ASA into Openswan, traffic does not flow back from openswan. No errors were… Continue reading
Simply, I want to have IPTABLES log whenever it drops a packet. To log all dropped incoming packets, add these entries to the bottom of your IPTABLES rules: iptables -N LOGGING iptables -A INPUT -j LOGGING iptables -A LOGGING -m limit –limit 2/min -j LOG –log-prefix “IPTables-Dropped: ” –log-level 4… Continue reading
Any admin knows that there are always computer and user accounts in AD that become stale and unused. It’s good practice to remove these old accounts from AD. Here’s how I do it. From any Domain Controller, open a command prompt and try the following. dsquery computer -inactive 8 -limit… Continue reading
This document can be used for Owncloud Ver 8 and Ubuntu Server 14.04. If you are running owncloud and have it facing the public internet, you should really be enforcing https communication. Even if it is internal only, enforcing https is a good idea. Since owncloud runs on top of… Continue reading
Mike's Guides to Learning Boto3 Volume 1: Amazon AWS Connectivity and Basic VPC Networking
Mike's Guides to Learning Boto3 Volume 2: AWS S3 Storage: Buckets, Files, Management, and Security
Or Feel free to donate some beer money through paypal.
You have my Thanks.