SEEI – Page 18 – Software Effect Enterprises, Inc

Disable TLS 1.0 and 1.1 In Zimbra Proxy

Posted on April 14, 2019 by SEEIApril 14, 2019

zmprov mcf -zimbraReverseProxySSLProtocols TLSv1 zmprov mcf -zimbraReverseProxySSLProtocols TLSv1.1 zmprov modifyConfig zimbraReverseProxySSLCiphers ‘!AES128-SHA256:!AES128-SHA:!CAMELLIA256-SHA:!CAMELLIA128-SHA!AES256-SHA:!AES256-SHA256:!AES256-GCM-SHA384:!AES128-GCM-SHA256:!ADH:!eNULL:!aNULL:!DHE-RSA-AES256-SHA:!SSLv2:!MD5:!EXPORT:!DES:!PSK:!RC4:HIGH’ zmproxyctl restart Now when you run a test at Qualys SSL Labs you should be able to have your Protocol Support score at 100% as part of your … Continue reading →

Find the PID and Names of Virtual Machines on Centos 7

Posted on April 12, 2019 by SEEIApril 12, 2019

On my Centos 7 system, I wanted to find out which VM was taking up a large amount of the processor: top – 14:43:15 up 3 days, 7:49, 2 users, load average: 1.66, 1.79, 1.99 Tasks: 442 total, 1 running, … Continue reading →

DHCP and/or Ping does not work on inside interface on SRX 300

Posted on March 17, 2019 by SEEIMarch 17, 2019

Problem: Traffic passes through to the outside/Internet on SRX, but the dhcp server does not assign ip addresses and you cannot ping the SRX from the inside Solution: The system services were blocked on the inside network. Example as follows: … Continue reading →

Backup your Juniper SRX every time you commit changes made to it

Posted on March 14, 2019 by SEEIFebruary 5, 2020

Add the following to your configuration Set up a location to scp your configurations to set up the time zone and ntp service – see my note Juniper – How to configure NTP Next – setup your host name:| set … Continue reading →

Disable ipv6 on a single interface or all interfaces

Posted on January 28, 2019 by SEEIOctober 20, 2020

1. Append below lines in /etc/sysctl.conf: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 NOTE : To disable IPv6 on a single interface replace “all” on the first line with “eth0” or the name of the selected ethernet interface 2. To make … Continue reading →

IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!

Posted on December 8, 2018 by SEEIDecember 8, 2018

You get the above message when running ssh. The issue is, you have connected to this host/ip in the past and the machine you are connecting to has been replaced and/or lots of updates have been done to it. If … Continue reading →

ssh fails to connect with debug1: expecting SSH2_MSG_KEX_ECDH_REPLY

Posted on November 11, 2018 by SEEINovember 11, 2018

Running ssh across a vpn connection I started having my ssh sessions fail to connect. After starting ssh with the “-vvv” option, the session would timeout after getting a debug1: expecting SSH2_MSG_KEX_ECDH_REPLY After doing some research, I found other people … Continue reading →

Zimbra CLI Account Management

Posted on November 6, 2018 by SEEINovember 6, 2018

Create an account w/ password of test1234 for email address user@abc.com with the name First Z Last and make them change their password the first time they log on zmprov createAccount user@abc.com ‘test1234’ zimbraPasswordMustChange TRUE displayName ‘First Z. Last’ \ … Continue reading →

Auto logon with Gnome 3 / Centos 7

Posted on September 7, 2018 by SEEISeptember 7, 2018

Note: You need supervisor privileges to make this change. Select the power icon in the upper right corner. Select your username from the drop down list Select Account Settings form under your username Select the Unlock button at the top of … Continue reading →

VCHI initialization failed Raspberry Pi

Posted on September 6, 2018 by SEEISeptember 6, 2018

I used vcgencmd inside a script for SNMP and the SNMP query returned: VCHI initialization failed I soon discovered if vcgencmd on a raspberry pi you get VCHI initialization failed then you need to add the video group to that user. … Continue reading →