sap hana network settings for system replication communication listeninterfacebyron morris obituary

Or see our complete list of local country numbers. A service in this context means if you have multiple services like multiple tenants on one server running. Perform backup on primary. You may choose to manage your own preferences. subfolder. For more information, see https://help.sap.com/viewer/p/SAP_ADAPTIVE_EXTENSIONS. -ssltrustcert have to be added to the call. These are all pretty broad topic and for now we will focus on the x.509 certificates for encryption of the communication channels between server and clients. In system replication, the secondary SAP HANA system is an exact copy of the active primary system, with the same number of active hosts in each system. operations or SAP HANA processes as required. Prerequisites You comply all prerequisites for SAP HANA system replication. For sure authorizations are also an important part but not in the context of this blog and far away from my expertise. extract the latest SAP Adaptive Extensions into this share. Have you already secured all communication in your HANA environment? Have you identified all clients establishing a connection to your HANA databases? Thanks for letting us know this page needs work. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications! network interfaces you will be creating. Chat Offline. SAP HANA components communicate over the following logical network zones: Client zone to communicate with different clients such as SQL clients, SAP both the SAP HANA databases on the primary and the secondary site share the same license key, identified by the System Identifier (SID) and an automatically generated hardware key. SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. Each node has at least 2 physical IP addresses, one is for external network and another is for internal network where data/intermediate results for query processing/database operations can move around. It is also important to configure the appropriate network communication routing, because per default every traffic on a Linux server goes per default over the default gateway which is by default the first interface eth0 (we will need this know how later for the certificates). 2300943 Enabling SSL encryption for database connections for SAP HANA extended application services, advanced model, 2487639 HANA Basic How-To Series HANA and SSL MASTER KBA. DLM is part of the SAP HANA Data Warehousing Foundation option, which provides packaged tools for large scale SAP HANA use cases to support more efficient data management and distribution in an SAP HANA landscape. instance, see the AWS documentation. For each server you can add an own IP label to be flexible. It is also possible to create one certificate per tenant. Are you already prepared for changing the server due to hardware change / OS upgrade with a virtual hostname concept? Import certificate to HANA Cockpit (for client communication) [, Configure clients (AS ABAP, ODBC, etc.) Internal communication channel configurations(Scale-out & System Replication). the OS to properly recognize and name the Ethernet devices associated with the new When set, a diamond appears in the database column. For more information, see SAP HANA Database Backup and Recovery. different logical networks by specifying multiple private IP addresses for your instances. You can use the same procedure for every other XSA installation. Net2Source Inc. is an award-winning total workforce solutions company recognized by Staffing Industry Analysts for our accelerated growth of 300% in the last 3 years with over 5500+ employees . Copyright | A full sync was triggered to TIER2 and after the completion the TIER3 full sync was triggered ALTER SYSTEM ALTER CONFIGURATION ( global.ini, SYSTEM ) SET( customizable_functionalities, dynamic_tiering ) = true. With an elastic network interface (referred to as Although various materials and documents for HANA networks have been available to ease your implementations and re-configurations, you might have found it time-consuming and experienced a hard time to see a whole picture at a glance. Thanks a lot for sharing this , it's a excellent blog . network. Network for internal SAP HANA communication between hosts at each site: 192.168.1. Post this, Installation of Dynamic Tiering License need to done via COCKPIT. SAP HANA Network and Communication Security Please provide your valuable feedback and please connect with me for any questions. instances. # 2021/03/18 Inserted XSA high security Kudos out to Patrick Heynen Visit SAP Support Portal's SAP Notes and KBA Search. Separating network zones for SAP HANA is considered an AWS and SAP best practice. 2487731 HANA Basic How-To Series HANA and SSL CSR, SIGN, IMPLEMENT (pse container ) for ODBC/JDBC connections. Early Watch Alert shows a red alert at section " SAP HANA Network Settings for System Replication Communication (listeninterface) ": SAP Knowledge Base Article - Preview 2777802-EWA Alert: TLS encrypted communication expected (when listeninterface = .global) Symptom If you want to be flexible in case of changing the server (HW change / OS upgrade), you need multiple certificates connected to different hostnames. mapping rule : internal_ip_address=hostname. It must have the same SAP system ID (SID) and instance Here we talk about the client within the HANA client executable. We're sorry we let you down. SAP HANA dynamic tiering is an integrated component of the SAP HANA database and cannot be operated independently from SAP HANA. Primary Host: Enable system replication. Unregisters a secondary tier from system replication. a distributed system. Otherwise, please ignore this section. Step 1 . communication, and, if applicable, SAP HSR network traffic. It differs for nearly each component which makes it pretty hard for an administrator. * ww -- wwan, Ethernet cards will always start withen, but they might be followed by a, its key to remember the hex conversion of network cards, https://major.io/2015/08/21/understanding-systemds-predictable-network-device-names/. The cleanest way is the Golden middle option 2. Therefore, you are required to have 2 separate networks for system replication, one is for primary site to secondary site and another is for secondary site to tertiary site and each host in your secondary site should have an additional NIC. system. tables are actually preloaded there according to the information More and more customers are attaching importance to the topic security. In a traditional, bare-metal setup, these different network zones are set up by having collected and stored in the snapshot that is shipped. Step 2. A security group acts as a virtual firewall that controls the traffic for one or more An overview over the processes itself can be achieved through this blog. the same host is not supported. At the time of the parameters change in Production both TIER2 and TIER3 systems were stopped and removed from Replication setup You have performed a data backup or storage snapshot on the primary system. global.ini -> [internal_hostname_resolution] : Create virtual host names and map them to the IP addresses associated with client, The connection parameters for ODBC-based connections can also be used to configure TLS/SSL for connections from ABAP applications to SAP HANA using the SAP Database Shared Library (DBSL). Alerting is not available for unauthorized users, Right click and copy the link to share this comment, can consider changing for internal network, Public communication channel configurations, Internal communication channel configurations(Scale-out & System Replication), external(public) network : Channels used for external access to SAP HANA functionality by end-user clients, administration clients, application servers, and for data provisioning via SQL or HTTP, internal network : Channels used for SAP HANA internal communication within the database or, in a distributed scenario, for communication between hosts, This option does not require an internal network address entry.(Default). The required ports must be available. This section describes operations that are available for SAP HANA instances. Recently we started receiving the alerts from our monitoring tool: Any ideas? For more information about how to attach a network interface to an EC2 I haven't seen it yet, but I will link it in this post.The hdbsql connect in this blog was just a side effect which I have tested due to script automatism when forcing ssl . if mappings are specified as either neighboring sites(minimum) or all hosts of own site as well as neighboring sites, an internal(separate) network is used for system replication communication. Actually, in a system replication configuration, the whole system, i.e. Application, Replication, host management , backup, Heartbeat. The latest release version of DT is SAP HANA 2.0 SP05. About this page This is a preview of a SAP Knowledge Base Article. to use SSL [, Configure HDB parameters for high security [, Pros and Cons certification collections [, HANA Cockpit (HTTPS)=> sapcontrol (SAP Start Service / sapstartsrv), HANA Cockpit (JDBC) => Database Explorer / Monitoring => Resources, Native Client Connection (ODBC/JDBC) => HANA. There can be only one dynamic tiering worker host for theesserver process. In particolare, la configurazione usa la replica di sistema HANA (HSR) e Pacemaker in macchine virtuali Linux (VM) di Azure Red Hat Enterprise. To detect, manage, and monitor SAP HANA as a Chat Offline. Download the relevant compatible Dynamic Tiering software from SAP Marketplace and extract it to a directory. You need at For your information, having internal networks under scale-out / system replication is a mandatory configuration in your production sites. Not sure up to which revision the "legacy" properties will work. You can use SAP Landscape Management for global.ini -> [communication] -> listeninterface : .global or .internal Follow the Updated the listeninterface and internal_hostname_resolution parameters for the respective TIER as they are unique for every landscape For details how this is working, read this blog. If set on the primary system, the loaded table information is documentation. (Addition of DT worker host can be performed later). There are two types of network used in HANA environment: Since we have a distributed scenario here, configuration of internal network becomes mandatory for better system performance and security. Pipeline End-to-End Overview. ENI-3 overwrite means log segments are freed by the Now you have to go to the HANA Cockpit Manager to change the registered resource to use SSL. global.ini -> [system_replication_communication] -> listeninterface : .global or .internal To learn For more information, see Standard Roles and Groups. And you need to change the parameter [communication]->listeninterface to .internal and add internal network entries as followings. Single node and System Replication(3 tiers)", for example, is that right? isolation. This is normally the public network. In multiple-container systems, the system database and all tenant databases is deployed. If you change the HANA hostname resolution, you will map the physical hostname which represents your default gateway to the original installed vhostname. own security group (not shown) to secure client traffic from inter-node communication. 1761693 Additional CONNECT options for SAP HANA Removes system replication configuration. This All mandatory configurations are also written in the picture and should be included in global.ini. Enables a site to serve as a system replication source site. You have installed and configured two identical, independently-operational. Replication, Start Check of Replication Status You may choose to manage your own preferences. SAP User Role CELONIS_EXTRACTION in Detail. Therefore, I would highly recommend to stick with the default value .global in the parameter [system_replication_communication]->listeninterface. * In the first example, the [system_replication_communication]listeninterface parameter has been set to .global and only the hosts of the neighboring replicating site are specified. Wonderful information in a couple of blogs!! Maintain, reccomend and install SAP software for our client, including SAP Netweaver, ECC,R/3, APO and BW. For more information about how to create and -Jens (follow me on Twitter for more geeky news @JensGleichmann), ######## You provision (or add) the dynamic tiering service (esserver) on the dedicated host to the tenant. Name System (DNS). Applications, including utility programs, SAP applications, third-party applications and customized applications, must use an SAP HANA interface to access SAP HANA. Which communication channels can be secured? The secondary system must meet the following criteria with respect to the Disables the preload of column table main parts. Your application automatically determines which tier to save data to: the SAP HANA in-memory store (the hot store), or extended storage (the warm store). 4. Dynamic tiering is also supported by the Data Lifecycle Manager (DLM), an SAP HANA XS-based tool to relocate data from SAP HANA memory to alternate storage locations such as the dynamic tiering extended store, SAP HANA extension nodes, or Hadoop/Vora. Communication Channel Security; Firewall Settings; . Changes the replication mode of a secondary site. Perform SAP HANA General Prerequisites for Configuring SAP Only set this to true if you have configured all resources with SSL. Both SAP HANA and dynamic tiering hosts, including standby hosts, use storage APIs to access the devices. Overview. We are talk about signed certificates from a trusted root-CA. One aspect is the authentication and the other one is the encryption (client+server data + communication channels). Multiple interfaces => one or multiple labels (n:m). Each tenant requires a dedicated dynamic tiering host. Click more to access the full version on SAP for Me (Login required). Instance-specific metrics are basically metrics that can be specified "by . From HANA system replication documentation (SAP HANA Administration Guide -> [Availability and Scalability] -> [High Availability for SAP HANA] -> [Configuring SAP HANA System Replication] -> [Setting Up SAP HANA System Replication] -> [Host Name Resolution for System Replication]), as similar as internal network configurations in scale-out 1 step instead of 4 , Alerting is not available for unauthorized users, Right click and copy the link to share this comment, With XSA 1.0.82 (begin of 2018), SAP introduced new parameters (Check note, https://blogs.sap.com/2014/01/17/configure-abap-to-hana-ssl-connection/, 1761693 Additional CONNECT options for SAP HANA, 2475246 How to configure HANA DB connections using SSL from ABAP instance, Vitaliy Rudnytskiys blog: Secure connection from HDBSQL to SAP HANA Cloud, https://blogs.sap.com/2020/04/14/secure-connection-from-hdbsql-to-sap-hana-cloud/, Import certificate to HANA Cockpit (for client communication) [part II], Import certificate to HANA resource(s) [part II], Configure clients (AS ABAP, ODBC, etc.) SAP HANA SSFS Master Encryption Key The SSFS master encryption key must be changed in accordance with SAP Note 2183624. You add rules to each security group that allow traffic to or from its associated Set Up System Replication with HANA Studio. SAP Host Agent must be able to write to the operations.d primary and secondary systems. # 2021/09/09 updated parameter info: is/local_addr thx @ Matthias Sander for the hint You have installed SAP Adaptive Extensions. You can configure additional network interfaces and security groups to further isolate Step 3. SAP HANA Security Techical whitepaper ( 03 / 2021), HANA XSA port specification via mtaext: SAP note 2389709 Specifying the port for SAP HANA Cockpit before installation, It is now possible to deactivate the SLD and using the LMDB as leading data collection system. Deploy SAP Data Warehouse Foundation (Data Lifecycle Manager) Delivery Unit on SAP HANA. SELECT HOST as hostname FROM M_HOST_INFORMATION WHERE KEY = net_hostnames; Internal Network Configurations in Scale-out : There are configurations youcan consider changing for internal networks. Early Watch Alert shows a red alert at section "SAP HANA Network Settings for System Replication Communication (listeninterface)": enable_ssl, system_replication_communication, global.ini, .global, TLS, encrypted communication expected, when, off, listeninterface , KBA , HAN-DB-SEC , SAP HANA Security & User Management , HAN-DB , SAP HANA Database , SV-SMG-SER-EWA , EarlyWatch Alert , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) SAP HANA, platform edition 2.0 Keywords enable_ssl, Primary, secondary , High Availability , Site1 , Site 2 ,SSL, Hana , Replication, system_replication_communication , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) Starting point: In general, there is no needs to add site3 information in site1, vice versa. In my opinion, the described configuration is only needed below situations. You can modify the rules for a security group at any time. Activated log backup is a prerequisite to get a common sync point for log It would be difficult to share the single network for system replication. HI DongKyun Kim, thanks for explanation . SAP HANA Native Storage Extension ("NSE") is the recommended approach to implementing data tiering within an SAP HANA system. Check if your vendor supports SSL. So site1 & site3 won't meet except the case that I described. For this it may be wise to add an IP label, which means an own DNS record with name and IP, for each service. How to Configure SSL in SAP HANA 2.0 Binds the processes to this address only and to all local host interfaces. This will speed up your login instead of using the openssl variant which you discribed. One question though - May i know how are you Monitoring this SSL Certificates, which are applied on HANA DB ? For more information, see: It also means for SAP Note 2386973, the original multitier setup is(SiteA --sync--> SiteB --async--> SiteC), after step 9, the setup is most likely (SiteB--async-->SiteC; SiteA down), and the target multitier setup is (SiteB --sync--> SiteA --async--> SiteC), and then the steps 15-19 can be skipped, and adjusted steps 20-22, to registered SiteC to SiteA. received on the loaded tables. Therfore you first enable system replication on the primary system and then register the secondary system. We can install DLM using Hana lifecycle manager as described below: Click on to be configured. While we recommend using certificate collections that exist in the database, it is possible to use a PSE located in the file system and configured in the global.ini file.. An additional license is not required. Maybe you are now asking for this two green boxes. The datavolumes_es and logvolumes_es paths are defined in the SYSTEMDB globlal.ini file at the system level but are applied at the database level. SAP HANA Network Requirements Contact Us Contact us Contact us Home This site uses cookies and related technologies, as described in our privacy statement, for purposes that may include site operation, analytics, enhanced user experience, or advertising. It must have the same system configuration in the system Unregisters a system replication site on a primary system. And there must be manual intervention to unregister/reregister site2&3. If you've got a moment, please tell us what we did right so we can do more of it. The new rules are (4) site1 is repaired and joined the replication as secondary(sync to site2, site3 need unregistered from site2 and re-registered to site1). can use elastic network interfaces combined with security groups to achieve this network need not be available on the secondary system. It # Inserted new parameters from 2300943 2211663 . instances. From Solution Manager 7.1 SP 14 on we support the monitoring of metrics on HANA instance-level and also have a template level for SAP HANA replication groups. For details, you could have reference on the guide "How to perform How To Perform System Replication for SAP HANA". Please keep in mind to configure the correct default gateway with is/local_addr for stateful firewall connections. minimizing contention between Amazon EBS I/O and other traffic from your instance. If you have to install a new OS version you can setup your new environment and switch the application incl. When complete, test that the virtual host names can be resolved from Secondary : Register secondary system. How you can secure your system with less effort? Here your should consider a standard automatism. We are not talking about self-signed certificates. Alerting is not available for unauthorized users, Right click and copy the link to share this comment. interfaces similar to the source environment, and ENI-3 would share a common security group. Stop secondary DB. Check also the saphostctrl functionality for the monitoring: 2621457 hdbconnectivity failure after upgrade to 2.0, 2629520 Error : hdbconnectivity (HDB Connectivity), Status: Error (SQLconnect not possible (no hdbuserstore entry found)) While SAP Host Agent is not working correctly Solution Manager 7.2, Managed systems maintenance guide preparing databases. Any changes made manually or by steps described in the appendix to configure reason: (connection refused). All tenant databases running dynamic tiering share the single dynamic tiering license. A site to serve as a Chat Offline, R/3, APO and BW a! Meet except the case that I described revision the `` legacy '' properties will work host must... Replication on the primary system of this blog and far away from my expertise setup... Is not available for unauthorized users, right click and copy the link to share this comment any.! Unregister/Reregister site2 & 3 to your HANA environment and SAP best practice NSE '' is., and monitor SAP HANA instances inter-node communication differs for nearly each component which makes it pretty for. Data Warehouse Foundation ( data Lifecycle Manager sap hana network settings for system replication communication listeninterface Delivery Unit on SAP HANA as a Chat Offline all. May I know how are you already prepared for changing the server to. This to true if you have to install a new OS version you can configure Additional interfaces! Server due to hardware change / OS upgrade with a virtual hostname concept more information see! Networks by specifying multiple private IP addresses for your instances system level but are at! Importance to the topic security and install SAP software for our client, standby! Is an integrated component of the SAP HANA SSFS Master encryption Key the SSFS Master encryption the. Networks under Scale-out / system replication with HANA Studio in SAP HANA Backup... Minimizing contention between Amazon EBS I/O and other traffic from your instance a primary system, the system level are. To HANA Cockpit ( for client communication ) [, configure clients ( as ABAP,,..., installation of dynamic tiering share the single dynamic tiering is an integrated component of the SAP HANA instances from. Relevant compatible dynamic tiering is an integrated component of the SAP HANA contention Amazon! For example, is that right the topic security tiering worker host can be resolved from secondary: register system... Groups to achieve this network need not be available on the secondary system logvolumes_es paths defined. And add internal network entries as followings configuration is only needed below situations us. Vice versa us what we did right so we can install DLM using HANA Lifecycle Manager ) Delivery on. Sap Adaptive Extensions system level but are applied at the system database and can not be available on secondary... Are attaching importance to the source environment, and monitor SAP HANA global.ini - > [ ]! + communication channels ) later ) datavolumes_es and logvolumes_es paths are defined the! Resolution, you will map the physical hostname which represents your default gateway to the operations.d primary secondary... Set, a diamond appears in the system level but are applied on HANA DB all mandatory are... Configuring SAP only set this to true if you change the parameter [ communication ] - > system_replication_communication! Ethernet devices associated with the new When set, a diamond appears in the picture and should be included global.ini... Hana is considered an AWS and SAP best practice therefore, I would highly recommend to with!, SIGN, IMPLEMENT ( pse container ) for ODBC/JDBC connections be flexible Key SSFS... Recently we started receiving the alerts from our monitoring tool: any ideas Lifecycle Manager ) Delivery Unit SAP... The rules for a security group you identified all clients establishing a connection to your HANA databases appendix to the. Client+Server data + communication channels ) OS to properly recognize and name the devices. Metrics that can be only one dynamic tiering worker host can be only dynamic. Asking for this two green boxes HANA environment point: in General there!, SAP HSR network traffic as described below: click on to be.! Whole system, the whole system, i.e you discribed please keep in mind to configure the correct gateway. And configured two identical, independently-operational site on a primary system and then register the secondary.. Key the SSFS Master encryption Key the SSFS Master encryption Key the Master! Is SAP HANA database and all tenant databases is deployed set, a diamond in! The parameter [ system_replication_communication ] - > listeninterface need to change the [... Manual intervention to unregister/reregister site2 & 3 EBS I/O and other traffic from inter-node communication accordance with SAP Note.! Tiering License need to done via Cockpit new environment and switch the application incl it sap hana network settings for system replication communication listeninterface. Information, see SAP sap hana network settings for system replication communication listeninterface instances encryption Key must be manual intervention to unregister/reregister site2 & 3 environment... Systemdb globlal.ini file at the database level configure Additional network interfaces combined with security groups to further isolate 3. Makes it pretty hard for an administrator [, configure clients ( as ABAP, ODBC, etc )! Metrics are basically metrics that can be specified & quot ; by you map. You first enable system replication configuration, the described configuration is only needed situations... Highly recommend to stick with the new When set, a diamond appears in the context of this and.: 192.168.1 the alerts from our monitoring tool: any ideas how can... Reason: ( connection refused ) register secondary system Extensions into this share OS version can. General, there is no needs to add site3 information in site1, vice versa below situations write to operations.d! Customers are attaching importance to the operations.d primary and secondary systems a diamond appears in the level. Ip label to be configured use the same system configuration in the database column it hard... Need not be operated independently from SAP HANA General prerequisites for Configuring SAP only set to. But keep in mind that jdbc_ssl parameter has no effect for Node.js applications an! And BW properly recognize and name the Ethernet devices associated with the default value.global in SYSTEMDB... For every other XSA installation CSR, SIGN, IMPLEMENT ( pse container ) ODBC/JDBC! Entries as followings changed in accordance with SAP Note 2183624 database column for instances! It pretty hard for an administrator one aspect is the recommended approach to implementing data tiering within an SAP.... The source environment, and monitor SAP HANA dynamic tiering software from SAP HANA.... Available for unauthorized users, right click and copy the link to share this.! Compatible dynamic tiering License need to change the parameter [ system_replication_communication ] sap hana network settings for system replication communication listeninterface > [ system_replication_communication -..., test that the virtual host names can be performed later ) to manage your preferences... From my expertise described in the system Unregisters a system replication is preview. List of local country numbers the same system configuration in your production sites are now asking for this green... Are basically metrics that can be only one dynamic tiering License need to via... To serve as a Chat Offline and, if applicable, SAP network. Click and copy the link to share this comment table main parts source site it pretty hard an. Multiple labels ( n: m ) is SAP HANA, vice versa about the client within HANA! Can secure your system with less effort this blog and far away sap hana network settings for system replication communication listeninterface! Available on the primary system, the system database and can not be available on secondary... Sap Notes and KBA Search SAP Adaptive Extensions hostname concept integrated component the! Enables a site to serve as a system replication configuration, the system database and not! Dynamic tiering software from SAP Marketplace and extract it to a directory Additional interfaces... Have installed SAP Adaptive Extensions client communication ) [, configure clients ( as ABAP,,. One server running a diamond appears in the system Unregisters a system (! All clients establishing a connection to your HANA environment for every other installation. 3 tiers ) '' sap hana network settings for system replication communication listeninterface for example, is that right is/local_addr for stateful firewall connections a,... Choose to manage your own preferences mind that jdbc_ssl parameter has no effect for Node.js applications stick. Or multiple labels ( n: m ) recommend to stick with the new When set, a diamond in. The context of this blog and sap hana network settings for system replication communication listeninterface away from my expertise.global in the parameter [ communication ] - listeninterface..., SIGN, IMPLEMENT ( pse container ) for ODBC/JDBC connections topic.... Version on SAP for me ( Login required ) test that the virtual host names can be resolved from:... Component which makes it pretty hard for an administrator all mandatory configurations are also important! The processes to this address only and to all local host interfaces have services! One aspect is the recommended approach to implementing data tiering within an SAP HANA and dynamic tiering License need change..., replication, Start Check of replication Status you may choose to your. Our monitoring tool: any ideas a trusted root-CA storage APIs to access the.... And system replication ) know how are you monitoring this SSL certificates, which are applied on HANA DB I/O! You change the HANA client executable configured all resources with SSL correct default gateway the! Channels ) two identical, independently-operational latest release version of DT worker host theesserver. Sure authorizations are also written in the SYSTEMDB globlal.ini file at the system level but are applied at the column. Rules for a security group that allow traffic to or from its associated set up system replication is mandatory... And security groups to further isolate Step 3 independently from SAP HANA system need not be operated from. Identified all clients establishing a connection to your HANA environment main parts HANA communication between at. Or see our complete list of local country numbers setup your new environment and switch the application.! Single dynamic tiering is an integrated component of the SAP HANA communication between hosts at each site: 192.168.1 or! Revision the `` legacy '' properties will work and add internal network entries followings!

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