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ISP Technologies for 2021

SD-WAN  https://en.wikipedia.org/wiki/SD-WAN -- virtualizes WAN functions using software,  --- supports    MPLS ,  Last Mile Fiber Optic Network ,  4G   LTE  and  5G . VXLAN https://en.wikipedia.org/wiki/Virtual_Extensible_LAN  It uses a  VLAN -like encapsulation technique to encapsulate  OSI   layer 2   Ethernet frames  within  layer 4   UDP  datagrams, using 4789 as the default  IANA -assigned destination UDP port number. [ The VXLAN specification was originally created by  VMware ,  Arista Networks  and  Cisc o Other backers of the VXLAN technology include  Huawei , [7]   Broadcom ,  Citrix ,  Pica8 , Big Switch Networks,  Cumulus Networks ,  Dell EMC ,  Ericsson ,  Mellanox , [8]   FreeBSD , [9]   OpenBSD , [10]   Red Hat , [11]   Joyent , and  Juniper Networks . Open VSwitch - supports  VXLAN overlay...
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vSphere 6.5 Add iSCSI volume via ESXi Host Client  on Packet.net  ( add to Packet.net documentation) https://www.youtube.com/watch?time_continue=196&v=W6ZOeoD3Ud8&feature=emb_logo Click "Add Dynamic Target "   and fill in the ip address of the iSCSI volume  ( see packet.net console - storage for the ip address ) Click "Save Configuration" Click "Devices"   and then "Refresh" New iSCSI volume appears Click "New Datastore" to create a new datstore on the iSCSI volume.

Install a LEMP Stack on CentOS 7

Here is a great tutorial for installing a LEMP stack on Linode https://www.linode.com/docs/web-servers/lemp/lemp-stack-on-centos-7-with-fastcgi/ I did this on Centos 7 and it worked great. Notes: 1. In your test.php file, remember to replace                     $username = "testuser";                    $password = "password"; with the username and password you created to login to  MariaDB  2. On Centos 7 you need to turn off SELinux or set it to permissive. Otherwise you'll get 'No Input file specified' when you test the web page If /var/log/nginx/error.log has '[error] 20049#20049: *43 FastCGI sent in stderr: "Unable to open primary script: /var/www/<yourwebsite>.com/test.php (No such file or directory)" Then you can temporarily set SELinux to permissive by running this command [root@linuxhost~]# setenforce 0 Then run [root@linuxhost~]# ...

OSSEC Version 3.6.0 Install Successful on Google Cloud

Created by Andrew Francis March 11, 2020 ******************    OSSEC v. 3.6.0 INSTALL SUCCESSFUL  ************* This is on a CentOS 7 vm on Google Cloud Platform  uname -a Linux ids-server 3.10.0-1062.12.1.el7.x86_64 #1 SMP Tue Feb 4 23:02:59 UTC 2020 x86_64 x86_64 x86_64  CentOS Linux release 7.7.1908 (Core) [andy@ids-server ossec-hids-3.6.0]$   sudo yum install zlib-devel pcre2-devel make gcc  sudo  yum install mysql-devel postgresql-devel  sudo  yum install sqlite-devel  sudo yum install  libevent libevent-devel.x86_64  wget https://github.com/ossec/ossec-hids/archive/3.6.0.tar.gz  tar -xzvf 3.6.0.tar.gz  cd ossec-hids-3.6.0/ [andy@ids-server ossec-hids-3.6.0]$ sudo  PCRE2_SYSTEM=yes ./install.sh (en/br/cn/de/el/es/fr/hu/it/jp/nl/pl/ru/sr/tr) [en]: OSSEC HIDS v3.6.0 Installation Script - http://www.ossec.net You are about to start the installation process of the OSSEC...