System administration(adeel khorram)
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A system administrator is responsible for maintaining and operating computer systems and networks. Their duties include monitoring security and resources, performing backups, installing new hardware and software, managing user accounts, troubleshooting problems, and ensuring system performance. Specifically, they audit systems and software, perform backups, apply operating system updates and configuration changes, install and configure new hardware and software, add/remove user accounts and reset passwords, and answer technical queries. System administrators are also responsible for system security, documentation, and ensuring the network infrastructure is functioning properly.
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Oct. 2006 – Sept. 2015, the document describes the duties and responsibilities of a Senior Computer Operator at Henry Schein Inc. including: serving as the sole technical point of contact for a global Network Operations Center and resolving all client issues; identifying and resolving system problems through monitoring and troubleshooting; providing first-line user support; coordinating network equipment installations and upgrades; ensuring data security through established protocols; and managing disaster recovery scenarios and system failures. The role required strong technical skills, attention to detail, crisis management, and guidance of other IT professionals.
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Kempanna Karajol is a senior IT professional with over 8 years of experience in software industry. He is currently working as a Senior Operational Professional at IBM India Pvt Ltd since 2012 where he manages 3000 servers and is responsible for incident management, change management and ensuring ITIL compliance. Prior to this, he worked as a Server Engineer at Info Services from 2011-2012 and as a Senior Desktop Engineer at PCS Technology Ltd from 2008-2011 where he handled tasks like Active Directory management, software installation and troubleshooting, backup management and more. He has technical expertise in areas like Windows server administration, virtualization, antivirus management and possesses various Microsoft certifications.
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This module discusses securing Windows servers using Group Policy Objects. It covers configuring security settings like templates, user rights, options and auditing. It also discusses restricting software using AppLocker and configuring the Windows Firewall. The lessons include demonstrations and labs on implementing these security configurations and restrictions.
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One of the greatest challenges to securing any IBM i environment is protecting the system from the people charged with its care: programmers, administrators, and security officers. Even regular end users often carry more privileges than necessary.
Power users might need access to restricted objects and commands, but they rarely need that level of access 24 hours a day, and accountability is essential.
In this slide deck, IBM i security expert Robin Tatam first points out the vulnerabilities associated with powerful users. Then, explore an award-winning approach to regaining the control your auditors demand while allowing your administrators and programmers to do their jobs.
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Chapter 7
This document discusses operating system controls and security. It covers logon procedures, access tokens, access control lists, and discretionary access privileges that secure the operating system. It also discusses threats like unauthorized access, tampering, and data corruption. Controls include access privileges, password controls, and audit trails. The document also covers database management controls, including access controls like user views and authorization tables, and backup controls like periodic backups, transaction logs, checkpoints, and recovery modules.
mary_jhun_macayana
This document provides a summary of qualifications for Mary Jhun Macayana, including 8 years of systems and security administration experience along with experience in hardware support, software development, and security. It details technical skills in operating systems like AIX, Linux, Solaris, and HP-UX as well as capabilities in troubleshooting, upgrading, patching, and securing various platforms. Work experience is outlined for positions at Fuji Xerox, JPMorgan Chase, and Smart Communications providing systems administration, patch management, security administration, and support across various operating systems. Education is listed as a Bachelor of Science in Computer Engineering from Polytechnic University of the Philippines along with various technical trainings. Character references are also provided.
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Enumeration techniques help attackers obtain configuration information about a system like IPtables, routing tables, filesystems, usernames and passwords, and service settings. This information is crucial for identifying potential privilege escalation vulnerabilities. Kernel exploits take advantage of unpatched vulnerabilities in the Linux kernel, allowing hackers to download, compile, and run exploits to gain root privileges with little modification. Mitigation involves always installing the latest security patches. Sudo right exploitation abuses a user's sudo access to gain root privileges. Limiting sudo rights to specific programs and using the principle of least privilege helps prevent this type of escalation.
Moamen CV
Moamen Mohamed is an IT professional seeking a support position. He has over 8 years of experience in technical support and administration of Windows operating systems, Microsoft Office, and network systems. He is proficient in English and Arabic and holds several IT certifications including A+, Network+, and MCITP. Mohamed has strong communication, problem solving, and organizational skills and is looking to contribute his experience to an employer.
10 tips for hardening your system
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This document contains an outline for a CISA review course covering topics such as information security management, logical access controls, network security, and auditing frameworks. It includes sections on inventorying and classifying assets, access permissions, privacy issues, risks from external parties, and incident response. Self-assessment questions test on weaknesses like uncontrolled database passwords, the risks of single sign-on, uses of intrusion detection systems, and effective antivirus controls.
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System administration(adeel khorram)
- 1. SYSTEM ADMINISTRATION PRESENTED BY: ADEEL KHURRAM
- 2. Definitions. 1. Being the consultant for Computer Problems b eyond the knowledge ofTechnical Support sta ff. 2. It is a job that require to maintain and operate a computer system and/or network. 3. Activities performed by a system administrator such as monitoring security configuration, managing allocation of user names and passwords, monitoring disk space and other resource use, performing backups, and setting up new hardware and software.
- 3. Duties Of SA! 1. • Performing routine audit of system and software 2. • Performing backup 3. • Applying operating system updates, patches, and configuration changes 4. • Installing and configuring new hardware and software 5. • Adding, removing, or updating user account information, resetting password. • Answering technical queries.
- 4. Duties Of SA! 1. * Responsibility for security 2. * Responsibility for documentation the configuration of the system 3. *Troubleshooting any reported problems 4. * System performance tuning * Insuring that the network infrastructure is up and running. 5. • Performing routine audit of system and software 6. • Performing backup 7. • Applying operating system updates, patches, and configuration changes 8. • Installing and configuring new hardware and software 9. • Adding, removing, or updating user account information, resetting password. 10. • Answering technical queries
- 5. ThankX.