scholarly journals AN OPEN SOURCE MAIL SERVER MIGRATION EXPERIENCE: IREDMAIL

2020 ◽  
Vol XLIV-4/W3-2020 ◽  
pp. 95-98
Author(s):  
N. Azginoglu
Keyword(s):  
Open Source ◽  
High Capacity ◽  
Migration Time ◽  
Operation System ◽  
Migration Experience ◽  
Mail Server ◽  
Set Up ◽  
System Migration ◽  
E Mail

Abstract. Servers are systems that set up to run for years, but it may be necessary to migrate to a new, better server when they have completed their lifetime or become inadequate. In this study, the open-source iRedMail e-mail server has been successfully migrated to another high-capacity physical server which uses an open-source CentOS operation system. Migration is a process that every step has to be very well planned. However, although planning is well done, unexpected errors may occur. For this reason, it is also essential to choose migration time. The experience gained as a result of the study is a guide for the new ones.

Sistem Auto Backup Elektronik Mail Pada Mail Server Menggunakan Cron Job

2018 ◽  
Vol 5 (2) ◽  
pp. 79-90
Author(s):  
Muhammad Imam Muarif ◽  
Dadan Irwan
Keyword(s):  
Operating System ◽  
Key Words ◽  
Open Source ◽  
Electronic Mail ◽  
Computer Network ◽  
The Other ◽  
Domain Name ◽  
Mail Server ◽  
E Mail ◽  
Server System

ABSTRACT   Electronic mail or commonly called e-mail is a mailing service that uses computer network for sending and receiving mail. On the other hand, e-mail mostly used as one of the supporting media for any communication activities. Therefore the purpose of this research is applying auto backup email system on mail server at Unisma Bekasi software laboratory.  Mail server used is Zimbra open source with Ubuntu Linux 14.04 operating system. To support the necessary elements, the bind9 system is used for naming the domain name that provides addressing on the server system. By having cronjob feature on Webmin, it makes a solution automatically command for auto backup which is combined with scrip. User account capacity and mailbox on mail server Zimbra can accommodate bigger mail compared to other servers such as qmail or postfix.     Key words: mail server, open source, zimbra, cron job, auto backup.        ABSTRAK   Surat elektronik atau biasa disebut e-mail adalah suatu layanan surat menyurat yang menggunakan media jaringan komputer dalam mengirim dan menerima surat. Penggunaan e-mail sendiri lebih banyak dipakai sebagai salah satu media pendukung dari setiap kegiatan komunikasi. Tujuan dari penelitian  ini adalah menerapkan sistem auto backup email pada mail server pada laboratorium software Universitas Islam 45. Mail server yang digunakan adalah zimbra open source dengan sistem operasi Linux Ubuntu 14.04. Untuk mendukung unsur-unsur yang diperlukan, penamaan nama domain menggunakan sistem bind9 yang menyediakan pengalamatan pada sistem server. Dengan adanya fitur cron job pada webmin, menjadikan solusi untuk melakukan sebuah perintah otomatis dalam melakukan auto backup yang dikombinasikan dengan script. Kapasitas user account dan mail box pada mail server zimbra dapat menampung lebih banyak dibandingkan mail server lainnya, seperti qmail atau postfix.   Kata kunci: mail server, open source, zimbra, cron job, auto backup.

Pengembangan Sistem VOIP Menggunakan Server Issabel Versi 4.0 dan Tunnel EOIP pada OMNI Hospital Alam Sutera

2018 ◽  
Vol 18 (1) ◽  
pp. 13-20
Author(s):  
Elly Mufida ◽  
David Wardana Agus Rahayu
Keyword(s):  
Operating System ◽  
Open Source ◽  
End Of Life ◽  
Communication System ◽  
Communication Protocol ◽  
The Internet ◽  
Migration Process ◽  
Web Browser ◽  
Backup Path ◽  
E Mail

The VoIP communication system at OMNI Hospital Alam Sutera uses the Elastix 2.5 server with the Centos 5.11 operating system. Elastix 2.5 by the developer has been declared End of Life. The server security system is a serious concern considering that VoIP servers can be accessed from the internet. Iptables and fail2ban applications are applications that are used to limit and counteract those who try to attack the VoIP server. One application that can be used as an open source VoIP server is the Issabel Application version 4.0. The migration process from Elastix 2.5 application to Issabel 4.0 by backing up all configurations in the Elastix 2.5 application through a web browser including the configuration of endpoints, fax, e-mail, asterisk. After the backup file is downloaded then upload the backup file to the Issabel 4.0 application then run the migration process. Adding a backup path as a failover connection is needed because the VoIP communication protocol between the OMNI Hospitals Group still uses one path so that when there is a problem in the connection path, the communication protocol will stop. The tunnel EoIP is a protocol used as a backup path between the OMNI Hospitals Group site.

scholarly journals Short-term adoption rates for a web-based portal within the intranet of a hospital information system

2019 ◽  
Vol 26 (1) ◽  
pp. e100004 ◽  
Author(s):  
Athanasios Kotoulas ◽  
Ioannis Stratis ◽  
Theodoros Goumenidis ◽  
George Lambrou ◽  
Dimitrios - Dionysios Koutsouris
Keyword(s):  
Open Source ◽  
Resistance To Change ◽  
Content Management ◽  
Healthcare Management ◽  
Short Term ◽  
Web Based ◽  
Average Growth ◽  
Greek Hospital ◽  
Set Up ◽  
Free Open Source

ObjectiveAn intranet portal that combines cost-free, open-source software technology with easy set-up features can be beneficial for daily hospital processes. We describe the short-term adoption rates of a costless content management system (CMS) in the intranet of a tertiary Greek hospital.DesignDashboard statistics of our CMS platform were the implementation assessment of our system.ResultsIn a period of 10 months of running the software, the results indicate the employees overcame ‘Resistance to Change’ status. The average growth rate of end users who exploit the portal services is calculated as 2.73 every 3.3 months.ConclusionWe found our intranet web-based portal to be acceptable and helpful so far. Exploitation of an open-source CMS within the hospital intranet can influence healthcare management and the employees’ way of working as well.

scholarly journals Building an Open Source Institutional Repository at a Small Law School Library: Is it Realistic or Unattainable?

2011 ◽  
Vol 30 (2) ◽  
pp. 81 ◽  
Author(s):  
Fang Wang
Keyword(s):  
Open Source ◽  
School Library ◽  
Law School ◽  
Institutional Repository ◽  
Digital Repository ◽  
Law Faculty ◽  
Development Support ◽  
The Law ◽  
Texas Tech University ◽  
Set Up

Digital preservation activities among law libraries have largely been limited by a lack of funding, staffing and expertise. Most law school libraries that have already implemented an Institutional Repository (IR) chose proprietary platforms because they are easy to set up, customize, and maintain with the technical and development support they provide. The Texas Tech University School of Law Digital Repository is one of the few law school repositories in the nation that is built on the DSpace open source platform.1 The repository is the law school’s first institutional repository in history. It was designed to collect, preserve, share and promote the law school’s digital materials, including research and scholarship of the law faculty and students, institutional history, and law-related resources. In addition, the repository also serves as a dark archive to house internal records.

scholarly journals A Dockers Storage Performance Evaluation: Impact of Backing File Systems

2021 ◽  
pp. 8-17
Author(s):  
Amer Ramadan ◽  
Keyword(s):  
Performance Evaluation ◽  
Experimental Design ◽  
File Systems ◽  
Experimental Results ◽  
File Server ◽  
Storage Performance ◽  
File Access ◽  
Mail Server ◽  
The Impact ◽  
E Mail

This paper reports on an in-depth examination of the impact of the backing filesystems to Docker performance in the context of Linux container-based virtualization. The experimental design was a 3x3x4 arrangement, i.e., we considered three different numbers of Docker containers, three filesystems (Ext4, XFS and Btrfs), and four application workloads related to Web server I/O activity, e-mail server I/O activity, file server I/O activity and random file access I/O activity, respectively. The experimental results indicate that Ext4 is the most optimal filesystem, among the considered filesystems, for the considered experimental settings. In addition, the XFS filesystem is not suitable for workloads that are dominated by synchronous random write components (e.g., characteristical for mail workload), while the Btrfs filesystem is not suitable for workloads dominated by random write and sequential write components (e.g., file server workload).

scholarly journals Proposal for an intelligent digital teacher’s textbook solution adapted to the Bachelor-Master-Doctorate system

2021 ◽  
Author(s):  
Ulrich Hermann Semevo Boko ◽  
Bessan Melckior Degboe ◽  
Samuel Ouya ◽  
Gervais Mendy
Keyword(s):  
Real Time ◽  
African Countries ◽  
Digital Textbook ◽  
Quality Of Higher Education ◽  
Teaching Content ◽  
Sub Saharan ◽  
Set Up ◽  
E Mail

This paper proposes an intelligent solution for course monitoring based on the use of a digital textbook coupled with an algorithm for verifying the conformity of the teaching content. The proposed solution allows to follow in real time the evolution of the courses and to alert the pedagogical managers in case of non-compliance with the syllabus. In most sub-Saharan African countries engaged in the Bachelor-Master-Doctorate (BMD) reform, incessant strikes prevent teachers from completing the program. Also, there is no way for the teacher to know whether students have the necessary prerequisites. In addition, constraints related to agendas sometimes prevent the holding of pedagogical animation meetings. To solve these problems, we propose the implementation of an intelligent digital teacher's textbook. The tool helps in the follow-up and the respect of the pedagogical objectives. It implements an algorithm to evaluate in real time the concordance between the courses given and the requirements of the syllabus. An SMS and e-mail alert system has also been set up to inform training actors in case of non-compliance with the syllabus. The proposed solution contributes to the overall improvement of the quality of higher education in Saharan Africa.

scholarly journals A Secure Methodology for Filtering Spam & Malware in E-mail System and Secure E-mail Testbed Setup

2021 ◽  
Vol 10 (2) ◽  
pp. 651-657
Keyword(s):  
Critical Infrastructures ◽  
Mail Server ◽  
Security Properties ◽  
Experimental Testbed ◽  
Typical Configuration ◽  
Mail System ◽  
E Mail

E-mail system is one of the critical infrastructures of any organization. It is necessary to ensure that the mail servers in use should be secured in such a way that no security properties like confidentiality, integrity, and authenticity are compromised. To achieve these security properties we have setup a secure e-mail server testbed that provides security against malware and spam, and guaranties secure e-mail delivery. This paper proposes a secure methodology for filtering spam and malware in the e-mail system, comprising standard layers of protocols and policies. An experimental testbed is established to evaluate the effectiveness of our methodology and was tested with spam and malware e-mails. Our results showed an accuracy of 95 percent, against a typical configuration of an e-mail system.

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