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1 A) Login to the System B) Use the Appropriate Command to Determine Your Login Shell C) Use the /Etc/Passwd File to Verify the Result of Step B
CSE ([email protected] II-Sem) EXP-3 1 a) Login to the system b) Use the appropriate command to determine your login shell c) Use the /etc/passwd file to verify the result of step b. d) Use the ‘who’ command and redirect the result to a file called myfile1. Use the more command to see the contents of myfile1. e) Use the date and who commands in sequence (in one line) such that the output of date will display on the screen and the output of who will be redirected to a file called myfile2. Use the more command to check the contents of myfile2. 2 a) Write a “sed” command that deletes the first character in each line in a file. b) Write a “sed” command that deletes the character before the last character in each line in a file. c) Write a “sed” command that swaps the first and second words in each line in a file. a. Log into the system When we return on the system one screen will appear. In this we have to type 100.0.0.9 then we enter into editor. It asks our details such as Login : krishnasai password: Then we get log into the commands. bphanikrishna.wordpress.com FOSS-LAB Page 1 of 10 CSE ([email protected] II-Sem) EXP-3 b. use the appropriate command to determine your login shell Syntax: $ echo $SHELL Output: $ echo $SHELL /bin/bash Description:- What is "the shell"? Shell is a program that takes your commands from the keyboard and gives them to the operating system to perform. -
Unix/Linux Command Reference
Unix/Linux Command Reference .com File Commands System Info ls – directory listing date – show the current date and time ls -al – formatted listing with hidden files cal – show this month's calendar cd dir - change directory to dir uptime – show current uptime cd – change to home w – display who is online pwd – show current directory whoami – who you are logged in as mkdir dir – create a directory dir finger user – display information about user rm file – delete file uname -a – show kernel information rm -r dir – delete directory dir cat /proc/cpuinfo – cpu information rm -f file – force remove file cat /proc/meminfo – memory information rm -rf dir – force remove directory dir * man command – show the manual for command cp file1 file2 – copy file1 to file2 df – show disk usage cp -r dir1 dir2 – copy dir1 to dir2; create dir2 if it du – show directory space usage doesn't exist free – show memory and swap usage mv file1 file2 – rename or move file1 to file2 whereis app – show possible locations of app if file2 is an existing directory, moves file1 into which app – show which app will be run by default directory file2 ln -s file link – create symbolic link link to file Compression touch file – create or update file tar cf file.tar files – create a tar named cat > file – places standard input into file file.tar containing files more file – output the contents of file tar xf file.tar – extract the files from file.tar head file – output the first 10 lines of file tar czf file.tar.gz files – create a tar with tail file – output the last 10 lines -
Covid-19 and the Rights of Persons with Disabilities: Guidance
HUMAN RIGHTS AT THE HEART OF RESPONSE TOPICS IN FOCUS COVID-19 AND THE RIGHTS OF PERSONS WITH DISABILITIES 29 April 2020 COVID-19 AND THE RIGHTS OF PERSONS WITH DISABILITIES: GUIDANCE 1. What is the impact of COVID-19 on the right to health of persons with disabilities? 2. What is the impact of COVID-19 on persons with disabilities who are living in institutions? 3. What is the impact of COVID-19 on the right of persons with disabilities to live in the community? 4. What is the impact of COVID-19 on work, income and livelihood of persons with disabilities? 5. What is the impact of COVID-19 on the right to education of persons with disabilities? 6. What is the impact of COVID-19 on the right of persons with disabilities to protection from violence? 7. What is the impact of COVID-19 on specific population groups in which persons with disabilities are overrepresented? a. prisoners with disabilities b. persons with disabilities without adequate housing OVERVIEW While the COVID-19 pandemic threatens all members of society, persons with disabilities are disproportionately impacted due to attitudinal, environmental and institutional barriers that are reproduced in the COVID-19 response. Many persons with disabilities have pre-existing health conditions that make them more susceptible to contracting the virus, experiencing more severe symptoms upon infection, leading to elevated levels of death. During the COVID-19 crisis, persons with disabilities who are dependent on support for their daily living may find themselves isolated and unable to survive during lockdown measures, while those living in institutions are particularly vulnerable, as evidenced by the overwhelming numbers of deaths in residential care homes and psychiatric facilities. -
Filesystem Hierarchy Standard
Filesystem Hierarchy Standard LSB Workgroup, The Linux Foundation Filesystem Hierarchy Standard LSB Workgroup, The Linux Foundation Version 3.0 Publication date March 19, 2015 Copyright © 2015 The Linux Foundation Copyright © 1994-2004 Daniel Quinlan Copyright © 2001-2004 Paul 'Rusty' Russell Copyright © 2003-2004 Christopher Yeoh Abstract This standard consists of a set of requirements and guidelines for file and directory placement under UNIX-like operating systems. The guidelines are intended to support interoperability of applications, system administration tools, development tools, and scripts as well as greater uniformity of documentation for these systems. All trademarks and copyrights are owned by their owners, unless specifically noted otherwise. Use of a term in this document should not be regarded as affecting the validity of any trademark or service mark. Permission is granted to make and distribute verbatim copies of this standard provided the copyright and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this standard under the conditions for verbatim copying, provided also that the title page is labeled as modified including a reference to the original standard, provided that information on retrieving the original standard is included, and provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this standard into another language, under the above conditions for modified versions, except that this permission notice may be stated in a translation approved by the copyright holder. Dedication This release is dedicated to the memory of Christopher Yeoh, a long-time friend and colleague, and one of the original editors of the FHS. -
Block Icmp Ping Requests
Block Icmp Ping Requests Lenard often unpenned stutteringly when pedigreed Barton calques wittingly and forsook her stowage. Garcia is theropod vermiculatedand congregate unprosperously. winningly while nonnegotiable Timothy kedges and sever. Gyrate Fazeel sometimes hasting any magnetron Now we generally adds an email address of icmp block ping requests That after a domain name, feel free scans on or not sent by allowing through to append this friendship request. Might be incremented on your Echo press and the ICMP Echo reply messages are commonly as! Note that ping mechanism blocks ping icmp block not enforced for os. This case you provide personal information on. Send to subvert host directly, without using routing tables. Examples may be blocked these. Existence and capabilities is switched on or disparity the protocol IP protocol suite, but tcp is beat of. We are no latency and that address or another icmp message type of icmp ping so via those command in this information and get you? Before assigning it is almost indistinguishable from. Microsoft Windows found themselves unable to download security updates from Microsoft; Windows Update would boost and eventually time out. Important mechanisms are early when the ICMP protocol is restricted. Cisco device should be valuable so a host that block icmp? Add a normal packet will update would need access and others from. Now check if you? As an organization, you could weigh the risks of allowing this traffic against the risks of denying this traffic and causing potential users troubleshooting difficulties. Icmp block icmp packets. Please select create new know how long it disables a tcp syn flood option available in specific types through stateful firewalls can have old kernels. -
Evaluating UNIX Security Previous Screen Allen B
84-01-15.1 Evaluating UNIX Security Previous screen Allen B. Lum Payoff The UNIX operating system's basic security features include password protection, access permission, user profiles, shell scripts, and file ownership. Because new and enhanced UNIX security features are continually being added to these features in response to the demands of an increasingly competitive user community, information security professionals must begin with an understanding of the basic UNIX security environment. This article covers the fundamental security features that can be found in most of the currently available versions of the UNIX operating system. Several checklists are included at the end of the article to assist administrators in ensuring the security of UNIX systems. Problems Addressed The UNIX operating system was originally developed for use by programmers within an open systems environment. The adoption of UNIX as a common operating system across several different platforms has increased the need for security beyond its original purpose. As a result, many UNIX installations have less than optimal security. In addition, there are several versions of UNIX on the market today with differing security features. This article discusses basic access controls (e.g., passwords) and directory and file permissions within the UNIX system. The concepts discussed are applicable to all versions of UNIX unless specifically noted otherwise. UNIX History As the majority of UNIX users know, UNIX was developed at AT Bell Laboratories in the late 1960s by Thompson and Ritchie; the name UNIXis a contraction of uni and multics. The original UNIX system software was written in the assembler language to run on the digital PDP-7 computer. -
Chapter 3 Unix Overview
Chapter 3 Unix Overview Figure 3.1 Unix file system Directory Purpose / The root directory /bin or /sbin Critical executables needed to boot the system /dev Device drivers /etc System configuration files such as passwords, network addresses and names,system startup scripts /home User home directories /lib Shared libraries used by programs /mnt Temporary mount point for file systems /proc Images of currently executing processes on the system /tmp Temporary files /usr A variety of critical system files, including system utilities (/usr/bin), and administration executables (/usr/sbin) /var Stores varying files such as /var/log, /var/mail Table 3.1 Important Directories in the Unix file system Figure 3.2 Unix Architecture Figure 3.3 Relationship between init, inetd, and various network services Sample /etc/inetd.conf file containing services spawned by inetd /etc/inetd.conf file format • Service name (port # defined in /etc/services) • Socket type (stream or dgram) • Protocol (tcp, udp, rpc/tcp, or rpc/udp) • Wait status (wait or nowait) • Username (service run as) • Server program • Server program arguments Use of inetd.conf to create backdoor listeners and attack relays Common Unix Administration Tasks ♦ Vulnerability of using “.” in your search path $PATH ♦ Showing all running processes ps –aux ps –aef ♦ Killing/restarting processes kill –HUP pid killall –HUP inetd ♦ /etc/passwd file ♦ Unix permissions rwxrwxrwx chmod command Common Unix Administration Tasks (cont.) ♦ SetUID programs – Executes with permissions of its owner, not of its -
Unique Identifier for Staff (UID Staff) Overview
Unique Identifier for Staff (UID Staff) Overview The intent of this document is to provide an overview of the Unique Identifier for Staff (UID Staff) system prior to working in the UID Staff System. After reviewing this information, please review the training materials that are available on the UID Staff Training website (http://www.ncpublicschools.org/cedars/uniqueid/staff/training/) for instructions on how to complete the processes of the Staff UID System. Staff UID Overview • The Unique Identifier for Staff System (UID Staff) will assign a unique identifier to Staff who participate in the North Carolina public school system. • Unique IDs follow staff between school districts and remain valid even if they move out of state and then return to a NC public school. • Assigning unique identifiers is the first step in DPI’s multi-stage effort to create the NC Common Education Data Analysis and Reporting System (CEDARS). • UID Staff is built on the eScholar Uniq-ID® for Staff product. Overview of UID Staff Process The UID Staff process includes the following 8 steps: 1. Generate CEDARS Staff file from LEA/Charter School Payroll System • Instructions for generating this file can be found at: http://www.ncpublicschools.org/docs/cedars/uniqueid/staff/training/creating-extracts.pdf 2. Upload CEDARS Staff file into UID Staff and Initiates Data Validation • This file can be loaded into the Training Environment (https://cedarstrain.schools.nc.gov/staffid/) so that you can check for errors before loading into production. 3. Download Fix Errors Report (if data errors are found by the UID Staff System) 4. -
REPLACEMENT TITLE APPLICATION MV2119 11/2017 Pursuant to S.342.13 Wis
REPLACEMENT TITLE APPLICATION MV2119 11/2017 Pursuant to s.342.13 Wis. Stat. Wisconsin Department of Transportation Instructions – How To Complete This Application IF QUESTIONS: Call (608) 264-7447 or contact the DMV Customer Service Center nearest you. For a list of title and registration locations, visit http://wisconsindmv.gov/Pages/online-srvcs/external/dmv.aspx. To replace a lost or damaged Wisconsin title, complete Sections A though F as they apply. If you are the lien holder who received the original title for this vehicle, please complete the Vehicle Lien Holder Certification section. SECTION A Vehicle Owner Information D Fees Owner/Co-owner: The names on the replacement title Replacement Title Fee is required to replace a will match what is currently in our records. “And” means lost, stolen or mutilated Wisconsin title. all owners must sign the title to transfer ownership. Loan Filing Fee is required if you are adding a new loan to “Or” means only one owner must sign the title. the vehicle at the time of application for a replacement title. Opt Out: You may remove your name(s) from mailing Counter Service Fee is required if you apply in lists that contain 10 or more individual names by checking person at a DMV Customer Service Center. the box. Businesses are not eligible for opt out. Processing Fee may be required if you are adding a loan and Social Security Number and Driver License Number: the Secured Party is not filing electronically; add $5 for DMV If you are applying as an individual, you are required processing. -
The Complete Freebsd
The Complete FreeBSD® If you find errors in this book, please report them to Greg Lehey <grog@Free- BSD.org> for inclusion in the errata list. The Complete FreeBSD® Fourth Edition Tenth anniversary version, 24 February 2006 Greg Lehey The Complete FreeBSD® by Greg Lehey <[email protected]> Copyright © 1996, 1997, 1999, 2002, 2003, 2006 by Greg Lehey. This book is licensed under the Creative Commons “Attribution-NonCommercial-ShareAlike 2.5” license. The full text is located at http://creativecommons.org/licenses/by-nc-sa/2.5/legalcode. You are free: • to copy, distribute, display, and perform the work • to make derivative works under the following conditions: • Attribution. You must attribute the work in the manner specified by the author or licensor. • Noncommercial. You may not use this work for commercial purposes. This clause is modified from the original by the provision: You may use this book for commercial purposes if you pay me the sum of USD 20 per copy printed (whether sold or not). You must also agree to allow inspection of printing records and other material necessary to confirm the royalty sums. The purpose of this clause is to make it attractive to negotiate sensible royalties before printing. • Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. • For any reuse or distribution, you must make clear to others the license terms of this work. • Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. -
Cisco Identity Services Engine CLI Reference Guide, Release 2.2 Americas Headquarters Cisco Systems, Inc
Cisco Identity Services Engine CLI Reference Guide, Release 2.2 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB's public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS" WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. -
System Analysis and Tuning Guide System Analysis and Tuning Guide SUSE Linux Enterprise Server 15 SP1
SUSE Linux Enterprise Server 15 SP1 System Analysis and Tuning Guide System Analysis and Tuning Guide SUSE Linux Enterprise Server 15 SP1 An administrator's guide for problem detection, resolution and optimization. Find how to inspect and optimize your system by means of monitoring tools and how to eciently manage resources. Also contains an overview of common problems and solutions and of additional help and documentation resources. Publication Date: September 24, 2021 SUSE LLC 1800 South Novell Place Provo, UT 84606 USA https://documentation.suse.com Copyright © 2006– 2021 SUSE LLC and contributors. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”. For SUSE trademarks, see https://www.suse.com/company/legal/ . All other third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its aliates. Asterisks (*) denote third-party trademarks. All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its aliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof. Contents About This Guide xii 1 Available Documentation xiii