HMS Backup Script – hMailServer forum

Hits: 3469 This is my advice for using SES along side your new Charming Full email server. HmailServer does not currently have a catchall relay smtp function like Postfix or Sendmail in Linux. You can set up Roundcube to send ALL messages via SES with the following settings. Edit C:\inetpub\wwwroot\webmail\config\config.inc.php edit the line $config[‘smtp_server’]  to the following. …

How to password reset Windows Server 2016 AWS EC2 ?

Hits: 980Prepare your own windows 2016 AMI with a random password for the new copy If you would like to prepare an AMI for yourself with a new password or for the marketplace Run: C:\ProgramData\Amazon\EC2-Windows\Launch\Scripts\InitializeInstance.ps1 –Schedule This tells the rebooted or new instance to produce  new password that will be properly encrypted so you can …

How to set up LACP bonding interface on CentOS 7 | Snel.com

Hits: 2790I am installing multiple systems with Linux Bonding and LACP mode 4 which uses IEEE 802.3ad Link Aggregation Policy. In the mean time I am looking at 2 links, as we are using Red Hat 6.9 https://developer.rackspace.com/blog/lacp-bonding-and-linux-configuration/ as well as the following: LACP bonding network interface setup A bonding network interface could be used …

 Introspection of baremetal nodes fails with ‘No hypervisor matching’  when node name used instead of uuid

Hits: 2379Introspection fails due to use of Host Name instead of UUID When I do introspection on baremetal servers that will be used as for Redhat TripleO Openstack 13 (This is the same as RDO Queens)  I start with just one. Before this I import the instackenv.json file with all of the baremetal server details …

Managing port level security in OpenStack 

Hits: 605I am investigating why dpdk doesn’t work inside an instance.   The OpenStack platform, specifically Neutron (the networking component), uses the concepts of “ports” in order to connect the various cloud instances to different networks and the corresponding virtual networking devices like Neutron routers, firewalls etc. The default security on these ports is quite restrictive (and …

Running the AWS CLI and Python on Windows 10 in a Linux Bash shell – 4sysops

Hits: 2183Enable the Windows Subsystem for Linux ^ Before we start anything and install the Linux distribution package for WSL, make sure you enable the “Windows Subsystem for Linux” optional feature on your machine. Running the following command from your PowerShell console will enable this feature. Open PowerShell as an administrator and run: 1 Enable-WindowsOptionalFeature -Online …

Doctors Are Losing #Faith in IBM #Watson’s #AI. But does predict breakfast choice.

Hits: 643Have you been feeling like Ai apps respond like 5 year olds? Medicine is based on statistics not theory. after eight years of waiting with little in the way of results, several doctors told IEEE Spectrum that they’re getting fed up — bad news for IBM, but also a potential inflection point for the …

6 Effective Tips for Blocking Email Spam with Postfix SMTP Server

Hits: 5824Not so charming, mega spam! Tip #6: Using Public Anti-Spam Blacklists There are spam emails that are sent from servers that has a valid hostname, valid PTR record and can pass through grey listing. In this case, you can use blacklisting to reject spam. There are many public anti-spam blacklists online. You can use …

Disconnected Registry for Red Hat Openstack and Openshift

Hits: 2713Setup disconnected Docker registry for Rhosp Setup disconnected Docker registry for Rhosp 13 Pre-requisites:1.    Server for registry that has 2 nics to connect to internet and disconnected servers2.    Director configured with latest minor release3.    Current Redhat subscription 4.    Hundreds of GB free, preferably a TB. It is wise to have /var as a separate mounted …

CentOS 7 : Dnsmasq : Install : Server World

Hits: 2310 Install Dnsmasq which is the lightweight DNS forwarder and DHCP Server Software. [1] Install Dnsmasq. [root@dlp ~]# yum -y install dnsmasq [2] Configure Dnsmasq. [root@dlp ~]# vi /etc/dnsmasq.conf # line 19: uncomment (never forward plain names) domain-needed # line 21: uncomment (never forward addresses in the non-routed address spaces) bogus-priv # line 41: uncomment (query …