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--- maintenance:general:nat [2021/10/22 08:58] – ↷ Links adapted because of a move operation pgels
+++ maintenance:general:nat [2024/07/03 12:31] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== NAT ======
+When backing up configurations or doing filetransfers, the transfer is usually started from the node towards NetYCE.
+> Commands are send to the devices to do those kind of executions.
+Because of the initiation on the node, the node needs to be able to reach the NetYCE instance. In some circumstances the NetYCE instance is NAT-ted, therefore known to the node with a different IP address.
+Thus the NetYCE application needs to be configured to use this specific IP adress.
+{{guides:howto:how_to_go_around_nat_1_.png?nolink|}}
+Shown in the example above, the netYCE VM resides inside a Laptop/Desktop/server
+The IP address of the VM is 192.169.190.128 and Host (Desktop/Laptop IP/server) IP is 10.1.222.61
+Thus the setup of NetYCE on login is as below
+<code>
+Starting net_setup
+  Good, root privileges apply
+--netYCE networking setup  Hit enter within 5 seconds to start setup .....
+--Start of setup
+--System release
+  Identified CentOS - 6.10
+  using setup for Redhat V6
+--Read network setup: '/opt/yce/etc/net_setup.xml'
+--Read yce setup: '/opt/yce/etc/yce_setup.xml'
+--Setup passwords
+    enter 'root' password:
+    aborted setting 'root' password
+    enter 'yce' password:
+    aborted setting 'yce' password
+--Setup hostname
+  Full qualified name is 'lab.netyce.org'
+  Is this full name correct? [Y]
+--Setup networking
+  Update networking? [Y]
+  Locating ethernet interfaces
+    eth0: ipv4=192.168.190.128 mask=255.255.255.0 network=192.168.190.0 /24
+    eth0: default gateway=192.168.190.2
+    YCE application address (eth0): 192.168.190.128
+- eth0: use static ip, dhcp or none?  [static]
+  Using Fixed IP on eth0
+    eth0: IPv4-address?  [192.168.190.128] ==> VMs Static IP
+    eth0: IPv4-netmask?  [255.255.255.0]
+    eth0: Default-gateway address?  [192.168.190.2]
+    eth0: NAT-ed IPv4-address?  [10.1.222.61]  ===> Externally Routed IP
+    eth0: Primary-DNS address?  [192.168.190.1]
+    eth0: Secondary-DNS address?  [8.8.4.4]
+  eth0 settings:
+    Boot-proto: static
+    On-boot: yes
+    Mac-address: 00:0c:29:3b:a5:18
+    IPv4-address: 192.168.190.128
+    IPv4-netmask: 255.255.255.0
+    IPv4-network: 192.168.190.0 /24
+    Default-gateway: 192.168.190.2
+    Primary-DNS: 192.168.190.1
+    Sencondary-DNS: 8.8.4.4
+  eth0: Is this correct?  [Y]
+--Save configuration?  [Y]
+  == network
+  == ifcfg-eth0
+  == resolv.conf
+--Restart networking service?  [Y]
+  == network restart (wait...)
+Shutting down interface eth0:                              [  OK  ]
+Shutting down loopback interface:                          [  OK  ]
+Bringing up loopback interface:                            [  OK  ]
+Bringing up interface eth0:  Determining if ip address 192.168.190.128 is already in use for device eth0...
+                                                           [  OK  ]
+    completed
+--Use 'ntpdate' to periodically set date and time?  [N]
+  == crontab
+  == hosts
+  == yce config update
+--Re-generating application configurations and restarting daemons
+-- ----------------------------------------
+-- Starting 'yce_setup' regenerate
+--   operating system: CentOS (6.10)
+--   read network setup: '/opt/yce/etc/net_setup.xml'
+--   read yce setup: '/opt/yce/etc/yce_setup.xml'
+--   connected to database at '192.168.190.128' using version '10.0.36-MariaDB'
+-- Current setup
+#
+# YCE Server overview:
+# Name         Domain               IP-address      Database Front-end Primary-db   Secondary-db
+# ----         ------               ----------      -------- --------- ----------   ------------
+# lab          netyce.org           192.168.190.128  id=1    yes       lab
+#
+-- Create configs for server 'lab'
+-- Yce: /opt/yce/etc/lab_yce.conf
+  retrieving file-transfer configurations...
+***********Output snipped for brevity **************
+#
+</code>