View Weekly Course Schedule View Course Resources. View Project 1 requirements. View Project x requirements. View Project 2 requirements. View Project 3 requirements. View Project 4 requirements. View Project 5 requirements. View Project 6 requirements. View Project 7 requirements. View Project 8 requirements. |
Other interesting links: Visit the Tampa-St. Pete Linux User's Group (SLUG). This group holds monthly meetings. Most Unix and Linux software is actually GNU software (www.gnu.org), a project of the Free Software Foundation. Search for RPMs and download updates from RPMFind.net. You can download free distributions of Unix and Linux from distrowatch.com. Read the real Unix History article at Spectrum.IEEE.org. More information can be found at The Open Group. View Solaris Unix certification and Oracle Unix exam objectives. View Linux LPI certification and LPI-1 exam objectives. |
Time & Place: | Ref. No. 13832:
Monday, Wednesday 7:00 – 8:15
PM, Dale Mabry room
DTEC–461
This is an independent study class, with no scheduled meetings after orientation. | ||||||||
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Instructor: |
Name: Wayne Pollock E-mail: Internet: Office & Phone: DTEC–404, 253–7213 View my Office Hours.
Skype
ID: wpollock@hccfl.edu
Homepage URL:
https://wpollock.com/
|
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Texts: |
Hunt, Craig. TCP/IP Network Administration,
3rd edition. ©2002 O'Reilly Media, Inc.
ISBN-10: 0-596-00297-1,
ISBN-13: 978-0-596-00297-8
Optional: Roderick W. Smith, Advanced Linux Networking, ©2002 Pearson Education (Addison-Wesley). ISBN-10: 0-201-77423-2. Optional: Evi Nemeth et. al., Unix and Linux System Administration Handbook, Fifth Edition. ©2017 Pearson Education, Inc. ISBN: 978-0-13-427755-4. | ||||||||
Description: | (This course is 3 credit hours long.) This course covers the concepts, terminology, management, tools and administration of networking services on Unix and Linux systems. Topics include configuring Unix and Linux networking, configuring routing, DNS and configuring name servers, Windows network integration with Samba, file sharing services with Samba and NFS, and other common network services such as DHCP and FTP. Students will review basic network concepts such as network models, LANs, and WANs, IPv4, IPv6, and PPP. Students will also gain hands-on experience with basic network security, and network configuration and troubleshooting using common network management tools. | ||||||||
Objectives: | After completing this course, the student will be able to:
| ||||||||
Prerequisites: | CTS 2322 or permission of the instructor. Students enrolled in a degree or college credit certificate program must complete all prerequisites. Note! HCC registration computers may not check for prerequisites before allowing you to enroll. Be certain you have all required prerequisites or you won't have much of a chance of success. Also you may be dropped from the class. | ||||||||
Facilities: | Assignments can be performed on the Dale Mabry campus Linux computers,
which can be accessed from the classroom or from some computers the
open computer lab.
You will also use the YborStudent Wiki for some of your work and having class on-line discussions. You will need your own flash disk (preferably USB-3 compliant), writing materials, and Scantron 882–E or 882–ES forms. You can use HawkNet (WebAdvisor) to obtain your final grade for the course. You can use your assigned Hawkmail (Hawkmail365) email address, or use Canvas, if you wish to discuss your grades via email. (Note, it may be possible to setup your Hawkmail account to forward all received emails to some outside email account; but you still must send mail from your official HCC account to discuss grades.) Most college systems now (or will in the future) use a single sign-on user ID, known as HCC “NetID”. Visit netid.hccfl.edu to register and to update your credentials. (Your initial password is your uppercase first name initial, lowercase last name initial, and your seven digit student ID number.) Note the quickest way to resolve login issues is the HCC Live Web Portal (hcclive.hccfl.edu).
The college provides wireless network connections for students and guests
on Dale Mabry campus.
For students, select the network
“ Hawk Alert text messaging service allows you to receive important information regarding campus closures or emergencies. You may also sign up for financial aid notifications and registration and payment deadlines. This is a free service, although some fees may be applied by your cellular service provider or plan for text messages. To sign up, or for more information, visit www.hccfl.edu/hawkalert/. HCC DM Open LabComputers with PuTTY installed are located in the computer science department open lab in DTEC–462. Additionally, the back-row has computers identical to the ones in our classroom. So if you need to work on your projects and the classroom is in use, you can request a lab tech to put your hard disk in one of the open lab computers. (You can call the open lab to determine if the classroom will be available, or to have them pull your hard disk in advance. The open lab phone number is: 253-7207.) Lab hours are:
(Note: Lab technicians (“Lab Techs”) are not teaching assistants or tutors, and shouldn't be expected to help you with your coursework.) Rules for Using HCC Facilities
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Grading: |
Grading scale:
A=90-100, B=80-89, C=70-79, D=65-69, F=0-64
(Collaborating on the class wiki counts as up to 5 points extra credit, as does active class participation. See below for details.) | ||||||||
Policies: |
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Projects: |
Projects will be assigned from the class web page
at various times.
You will have sufficient of time to complete the projects,
at least a week but usually two weeks.
Although most projects will be group projects, there may be some individual
assignments, and you must work individually on the non-group
projects.
You may work together in small groups on group projects,
provided the names of all who worked together are listed.
Each student must still submit their own copy.
Projects are typically completed outside of regular class
hours.
Projects are graded on the following scale:
A = 95% (Excellent: Good design with good comments, style, and extras) Minor extras worth +5 points, minor omissions or poor design worth -5. Projects are not graded when turned in. They are graded all at once, sometime after the project deadline has passed (usually the next weekend). Further details will be provided with your first project. (See also submitting assignments below.) | ||||||||
Wiki Assignment: |
Extra credit can be earned by updating the study guide on the
class wiki
with a substantial contribution based on the material covered
in class, from assigned readings, or from other resources you
have studied.
A substantial contribution means adding new material,
adding references (links), or elaborating (or correcting) some
previous submission.
You should use
wiki formatting and not HTML formatting when
possible, and be sure to spell-check your work.
The wiki will automatically send your instructor an email for each
update, so there is no need to add your name to your contribution.
Your instructor is the editor and moderator of this study guide (and for all material posted on this wiki site). While some time will be given for students to correct postings, in order to ensure an accurate study guide the instructor may edit, add to, or remove material posted by students. The wiki assignment will be graded on or after the following week (so you have through the weekend to post something for the previous week). Your contributions will be graded based on correctness, completeness, and clarity. Note regular posting is required to earn extra credit; one large post the last week of the term will not earn much (or any) extra credit. Do not post during class hours. Do not attempt to post you complete class notes for the day. Each submission should be on one or two (no more than three) items covered in that class. (You must leave something for the other students to post!) | ||||||||
Submitting Projects: |
Projects should be submitted by email via Canvas mail,
or directly to
.
Please use a subject such as “Unix/Linux Networking Project #1
Submission” so I can tell which emails are submitted work.
Send only one assignment per email message.
Email your projects by copy-and-paste into your mail program.
(Please do not send as attachments!)
If possible, use the “text” and not the “HTML”
mode of your email program.
Do not send any email to wpollock@YborStudent.hccfl.edu as I may not read that
account regularly.
In the event a student submits more than once for the same assignment, I will ignore all but the last one received up to the deadline or until I have provided grading feedback. Assignments submitted after the deadline will not count toward your grade except as allowed by the course late policy. You cannot resubmit an assignment once it has been graded.
The HCC email server automatically accepts and
silently discards email with certain types of attachments.
If you must send email to my Internet (non-YborStudent) email
account please avoid using any attachments, but especially
“zip” files.
To send email with a “ To avoid having your submitted work rejected as “spam”, you can use Hawkmail365 to send email to professors. (This doesn't always work either!) the most reliable option currently is to send messages via Canvas. If you have an email problem you may turn in a printout instead. Be sure your name is clearly written on the top of any pages turned in. Please staple multiple pages together (at the upper left). |
HCC Academic Calendar: | |
---|---|
Classes Begin: | Monday 8/19/2019 (First class meeting: Tuesday 8/20/2019) |
Add-Drop Ends: | Friday 8/23/2019 |
Orientation Period Ends: | Wednesday 8/28/2019 |
Last Day to Withdraw: | Saturday 10/26/2019 |
Classes End: | Tuesday 10/10/2019 |
Grades Available: | Thursday 10/12/2019 (from HawkNet) |
HCC is closed on: |
Saturday–Monday 8/31/2019–9/2/2019 (Labor Day), Tuesday 10/22/2019 (Faculty In-Service Day), Saturday–Monday 11/9/2019–11/11/2019 (Veterans' Day), Thursday–Sunday 11/28/2019–12/1/2019 (Thanksgiving Holiday) |
Consequences of Dropping or Withdrawing
Dropping or withdrawing may have an impact on financial aid, veteran’s benefits, or international student visa status. Students are encouraged to consult with a financial aid, the VA certifying official, or the international student advisor, as appropriate, prior to dropping or withdrawing from class.
Requests For Accommodations
If, to participate in this course, you require an accommodation due to a physical disability or learning impairment, you must contact the Office of Services to Students with Disabilities, Dale Mabry campus: Student Services Building (DSTU) Room 102, voice phone: (813) 259–6035, FAX: (813) 253–7336.
HCC has a religious observance policy that accommodates the religious observance, practices, and beliefs of students. Should students need to miss class or postpone examinations and assignments due to religious observances, they must notify their instructor at least one week prior to a religious observance.
Quotes: | “Tell me and I'll listen. Show me and I'll understand. Involve me and I'll learn.” | — Lakota Indian saying | |
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“Learning is not a spectator sport!” | — Chickering & Gamson |
Dates Mon Wed |
Topics, Assigned Readings, and Assignment Due Dates |
---|---|
8/19 |
Course introduction.
Network standards and standard organizations
(RFCs, IEEE, ISO, ...).
SI units.
Readings: Hunt: Chapters 1, 3. on-line network standards, organizations resources |
8/21
|
Network concepts review: protocols, topologies, addressing.
Categorization of networks: by size
(LAN, WAN), type (client-server, peer-to-peer), by
technology/protocols (Ethernet, TCP/IP).
List of common network services.
Readings: Hunt: Chapters 4, 5. Frisch: Pages 180–202. |
8/26 8/28 |
Internet brief history and overview: ARPAnet, NSFnet, Internet Exchanges,
Autonomous systems (AS), peering and transit,
ISPs.
IP address allocation: IANA, regional Internet
registries (RIRs).
Network models: TCP/IP model, OSI
model.
Readings: Hunt: Chapters 4, 5. Frisch: Pages 180–202. |
Sat 8/31 – Mon 9/2 | Labor Day — HCC Closed |
9/4 |
Using WireShark (capture, filtering, analyzing).
Packet capture, TCPdump, promiscuous mode,
SPAN (mirror) ports on a switch,
using and placing TAPS, Network Monitoring Stations (NMS),
privacy concerns (full content capture, header-only capture).
Readings: TBD Project #1 (Install) due 9/4 |
9/9 9/11 |
Ethernet networking: Hardware, addressing, CSMA/CD.
Packet collisions, runts, and the jam signal.
Switched Ethernet.
Ethernet framing and Frame types,
MAC,
LLC, and
SNAP headers.
VLAN tagging, giant frames.
IEEE 802 standards.
Data Transmission Issues: Point-to-point (simplex, half duplex, and full duplex), point-to-multipoint (broadcast, multicast), anycast. Capacity (throughput and bandwidth). Trouble-shooting data link problems (EMI/RFI, attenuation, latency, Crosstalk and Alien crosstalk). Using ethtool .
Overview of physical Layer concepts and terminology.
Readings: Hunt: Chapters 4, 5. Frisch: Pages 180–202. |
9/16 9/18 |
TCP/IP details: protocols (TCP,
TCP hand-shaking,
UDP,
ICMP,
IP), port numbers, sockets.
Inetd, xinetd, and systemd sockets.
ARP, RARP/BOOTP/DHCP, cabling issues. Link Aggregation (A.k.a. Bonding, IP Multipath, EtherChannel, ...). Other protocols brief overview: NetBIOS/NetBEUI, ATM, WAN technologies (T1, OC-#, PPP), VPN, VOIP, IPv6, cell, Wi-Fi (802.11 wireless), RPC. Readings: Hunt: Pages 43-44, 48, 76-83, 150-169, 266-267. On-line TCP/IP concepts resources |
9/23 |
Common network design.
Understanding ROI.
NAT.
IPv4 and IPv6 addressing and binary numbers.
Networking documentation.
Configuring client DHCP (and zeroconf).
Using static IP configuration (for servers).
Configuring the Name Service Switch (nsswitch.conf ).
Readings: Hunt: Chapter 2, pages 87-88, 134-150. Smith: Chapter 26, on-line binary number, addressing, and IPv6 resources Project #2 (Static IP) due 9/23 |
9/30 10/2 |
Routing overview: static versus dynamic routing, routing versus routed
protocols, distance vector versus link state, RIP,
OSPF, ...
BGP routing in the Internet.
NAT/SNAT/DNAT/IPMasquerade.
Configuring Linux for routing.
Bridging overview,
VLANs,
Linux bridging configuration.
Readings: Hunt: Chapters 7, 12. Smith: Chapters 22 (pp. 599–616, 624–626), 23, 24 (pp. 653–659), 25, routing on-line resources |
10/7 10/9 |
The domain name system (DNS) and
BIND.
Configuring caching, primary, and secondary DNS servers.
Readings: Hunt: pages 51-61, chapter 8. Smith: Chapter 18. Frisch: Pages 414–452. on-line DNS resources Project #3 (Register DNS) due 10/9 |
10/14 10/16 |
Remote Access: Terminal services (and
RAS,
NAS, XDMCP),
remote consoles
(KVM),
RDP
(and rdesktop , PC Anywhere),
remote user authentication (RADIUS,
TACACS+),
and SSH
(host keys and the known_hosts file, using keys instead
of passwords, key caching and key-agents).
VPNs
(IPsec).
VNC,
VNC security.
PPP:
PAP and CHAP, chat .
Readings: Hunt: Pages 399–402, 148–169, chapter 13. Smith: Chapters 14, 26, pages 51–62, chapters 22 (pp. 616–623), 24 (pp. 641–653). Frisch: Pages 484–500 Project #4 (DNS) due 10/16 |
10/21 10/23 |
Trouble-shooting tools and techniques.
Monitoring the network
(NIDS,
MRTG,
SNMP and RMON).
Readings: Hunt: Pages 399–402, 148–169, chapter 13. Smith: Chapters 14, 26, pages 51–62, chapters 22 (pp. 616–623), 24 (pp. 641–653). Frisch: Pages 484–500, SNMP and system monitoring on-line resources |
10/28 |
Review
|
11/4 |
Configure an LDAP server.
(Configure hosts to use LDAP instead of
/etc/passwd .)
Readings: Frisch: Pages 313–328, on-line LDAP Resources |
11/6 |
Configure and manage network file sharing services: NFS.
Readings: Hunt: Pages 233-252, 259-267. Smith: Chapters 7, 8. Frisch: Chapter 10 (pp. 694–706), on-line NFS resources |
Sat 11/9 – Mon 11/11 | Veterans' Day observed — HCC Closed |
11/13 |
Configure and manage network file sharing services: Samba.
Readings: Hunt: Pages 233-252, 259-267. Smith: Chapters 7, 8. Frisch: Chapter 10 (pp. 694–706), Using Samba, on-line Samba resources Project #6 (LDAP) due 11/13 |
11/18 |
Wi-Fi overview and configuration.
Readings: Wi-Fi on-line resources |
11/20 |
Kerberos overview.
Readings: Hunt: Chapter 12. Smith: Chapter 6, Kerberos tutorial |
11/25 11/27 |
Email services: mail service,
POP/IMAP.
Controlling spam and viruses.
User authentication and security.
Managing mailing lists.
Web mail service (using Apache and Squirrelmail).
Readings: Hunt: Chapters 9, 11. Smith: Chapters 14, 20. email on-line resources Project #7 (NFS and SMB Shares) due 11/27 |
Thu 11/28 – Sun 12/1 | Thanksgiving Holiday — HCC Closed |
12/2 |
Setup a DHCP server.
Configure an anonymous FTP server.
NAS/SAN.
Readings: Hunt: Pages 272-278, 399-402 Smith: Chapters 5, 13, 17, 21 on-line vsftp and anonymous FTP resources. on-line SAN, NAS, and AoE resources |
12/4 |
(Time permitting: Clusters and Grids.
Network backups.
Advanced Linux routing, traffic shaping,
and queueing.
VoIP.)
Readings: Hunt: Pages 61, 268-272. |
12/9 |
Project #8 (Email Service) due 12/10 |
Resources | |||||
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System Administrator Tasks | Some of the common tasks required of system administrators. | LVM Guide | A tutorial for Logical Volume Management (see also Sun's Volume Management Guide) | ||
Post Install Task List | Lists and briefly describes many post install tasks | Network Standards | Networking Standards and organizations overview | ||
Soft Skills | Discusses certifications, job interviewing tips, and required non-technical skills needed to find and keep a job | ||||
ICANN Home | Internet Corporation for Assigned Names and Numbers | IANA home | Internet Assigned Numbers Authority (Assigned protocol, AS numbers, port numbers, TLDs, etc.) |
||
SI prefixes | Shows standard numeric prefixes | Network+ certification | A CompTIA program (See also Network+ exam objectives (PDF)) | ||
RFC number search plugin | Save this XML file in the
Firefox “searchplugins ” directory |
RFC keyword search plugin | Save this XML file in the
Firefox “searchplugins ” directory |
||
Network Topologies (PNG) | A graphic showing several common network topologies | ||||
WireShark.org | WireShark (formerly “Ethereal”) home | Wireshark how-to (YouTube video) | A short basic Wireshark tutorial (See also this Wireshark tutorial) | ||
IEEE Registration Authority | Information and tutorials on Ethernet standards from standards.ieee.org | IEEE 802 series of standards | Free (PDF) downloads of Ethernet (LLC and MAC), 802.11 (wireless), and other standards. | ||
Networking Study Guide | Lists and briefly describes networking terms and concepts. | OSI Reference Model | A GIF illustration of the OSI Ref. Model | ||
PacketLife.net | Useful reference guides and other info for networking | NOC Tour | Historical AT&T NOC tour (YouTube video) (See also wallboard pic, and modern NOC wallboards and dashboards) | ||
Binary number system (Wikipedia) | Details on the binary number system | Binary Number Tutorial | A good tutorial on binary numbers | ||
Network address calculator | Easily calculate subnet masks and more (See also www.calculator.net) | RFC Archive | RFCs and a search engine | ||
IP Address Exhaustion | Charts showing IP addresses allocated over time | RFC-5735 | Special and reserved IPv4 addresses (previously RFC-3330) | ||
Internet undersea cable map (JPEG) | Graphic of the undersea cables that connect the Internet (See also this updated submarine cable map) | Internet Exchange Points List | A list of IXPs (a.k.a. EPs) from ixpdb.net. See also Euro-IX (European Internet Exchange Association), with a tutorial at www.euro-ix.net/en/forixps/, and the IXP summary and list at PCH.net | ||
TCP/IP Guide | Free tutorial for TCP/IP | Cisco TCP/IP tutorial | A good video tutorial on networking and TCP/IP (See also Cisco Troubleshooting TCP/IP Guide) | ||
Supernetting tutorial | Short tutorial on CIDR, supernetting | RFC-1812 | Official standard for Internet routing and related concepts | ||
ZeroConf.org | IPv4 automatic link-local addressing, originating in AppleTalk, later renamed “Rendezvous” and now “Bonjour” | Working with IP Addresses | Cisco Tutorial for IP addressing and for binary numbers | ||
Port Numbers, Sockets, and RPC | Some lecture notes summarizing these topics | NetworkManager | Documentation for NetworkManager (See also Fedora NetworkManager Documentation) | ||
awstats for wpollock.com - September 2017 PDF | Apache log analyzer and visualizer (See also awstats for wpollock.com - 2016 PDF) | webalizer for wpollock.com - 2006–2007 | Another Apache log analyzer and visualizer | ||
RFC-4291 | IPv6 Addressing | wiki.go6.net | IPv6 Knowledge Center | ||
IPv6.org | IPv6 information and links | IPv6 @TutoriualsPoint.com | See also Cisco IPv6 tutorial | ||
NIST Special Publication 800-119 | IPv6 Secure Deployment Guide (PDF), includes a readable overview | test-ipv6.com | Checks for IPv6 connectivity (See also kame.net and look for the dancing turtle) | ||
Linux IPv6 How-To | Linux guide to IPv6 | Solaris IPv6 Administration Guide | Sun's “Big Admin” guide on IPv6 | ||
freenet6 | One of several IPv6 tunnel providers | IPv6 Web Tools | Tools to test your IPv6 setup | ||
About ping | The real story of the ping utility |
Network equipment pricing info | On-line resources for Cisco equipment, cables, and more | ||
www.webopedia.com | On-line technical encyclopedia (Search for 802 for instance) (Also see Wikipedia.org) |
/etc/services file (IANA.org) |
Current list of well-known port numbers | ||
WAN Technology Charts | Tables of T-carrier, DSL, and SONET characteristics | Internet Live Stats | Internet statistics (See also Internet Traffic Report/ and this Digital Attack Map) | ||
Internet Mapping Project | View pictures of the Internet (12/98 Wired pic, Selected snap-shots; see also IPv4 changes in Yugoslavia during the 1999 war) | Distance Vector Routing (GIF) | Illustration of Dist. Vect routing, from Routing TCP/IP Volume I (CCIE Professional Development), by Jeff Doyle, ©1998 by Cisco Press. From posted sample chapter, figure 4.3 | ||
Syria goes off-line (YouTube video) | A video showing the Internet BGP4 routing tables for Syria, as they vanish in December 2012; the numbers shown are AS numbers; The routes flash when removed completely (See the full story at Ars Technica) | Routing without tears: Bridging without danger (PDF) | Radia Perlman's slideshow presentation of Rbridging (and includes routing and bridging basic concepts) | ||
NAT Overview | Description of IP masquerade (or NAT) | ifcfg-eth0 | A sample config file for static IP setup for Fedora | ||
NAT Overview | Description of IP masquerade (or NAT) (See also computer.howstuffworks.com/nat.htm | ifcfg-eth0 | A sample config file for static IP setup for Fedora | ||
TCPFlow | A TCP data flow recorder | suidDemo.tgz | Shows how suid can be used to control access to files | ||
docwiki.cisco.com/.../SNMP | A detailed tutorial on SNMP versions 1 and 2, but not 3 (See also Securing SNMP) | SNMP Setup and Demos | Shows how to configure SNMP on Linux | ||
What is SNMP | A brief but good tutorial from www.ManageEngine.com | net-snmp Tutorials | Tutorials for the net-SNMP software (used on Linux), including how to use version 3 security features | ||
MIB Browser (zip) | A Java-based GUI app that allows one to explore MIBs (from ireasoning.com) (See also oid-info.com) | MIBbrowser.vbs | For Windows, put this in the MIB Browser's
“.../bin ” folder, and make a
short-cut to it for easy launching |
||
JetDirect MIB | SNMP MIB for the JetDirect print server | LaserJet 8100 MIB | SNMP MIB for the HP laser printer in the classroom | ||
ASN.1 Decoder | ASN.1 JavaScript app that decodes Base-64 (from lapo.it/asn1js/) | Remote (network) Monitoring | An RMON tutorial from Cisco | ||
SNMP MIB | SNMPv2 MIB for Cisco MPLS Router | System Monitoring Tutorial | A brief overview of the basics | ||
Xymon | Open source (SNMP-based) multi-server monitoring system | Syslog, Log File Rotation | A tutorial including examples | ||
IP Traffic Management | Draft Lecture Notes | DNS Resources | Sample DNS configuration files plus other resources | ||
Linux IP Networking | From sysresccd.org (the home of the System Rescue CD
Linux distro), these articles describe using the new
ip command and some advanced routing
(including load-balancing) |
Advanced Routing How-to | Describes advanced routing for Linux (from tldp.org) | ||
LDAP Overview | Draft Lecture Notes | OpenLDAP.org | Software and documentation for OpenLDAP | ||
LDAP files | Sample (Working!) LDIF files and OpenLDAP configuration files | ||||
Wi-Fi Overview | Describes 802.11 standards, history, security, and configuration | Moron's Guide to Kerberos | Kerberos overview. See also this tutorial from Kerberos.org | ||
DHCP Server Configuration | Lecture notes on DHCP | Anonymous FTP Site Setup | Shows how to setup and configure vsfptd | ||
httpd configuration | Sample httpd (Apache) configuration files. | httpd docs | The Apache web server documentation (version 2.4) | ||
Web server market share | NetCraft report showing market share of popular web servers | nginx | A popular alternative to Apache | ||
NIS and NIS+ | Using NIS and NIS+ | Clusters and Grids | Unix and Linux cluster and Grid computing | ||
NAS, SAN, and AoE | Centralized disk storage draft lecture notes | Storage Basics (including SAN and NAS) (PDF) | Enterprise storage concepts from SNIA.org | ||
File Sharing Overview | File and print sharing using NFS and CIFS (SMB) | Email Service Resources | Sample DNS, SpamAssassin, ClamAV, Amavis, SASL, Postfix, and IMAP/POP configuration files, plus other resources | ||
NFS Demo | Setup and use of NFS | Samba Demo | A log of commands needed for setup and use of a minimal Samba server | ||
Public-key encryption | Tutorial on security and public-key encryption (from the old Netscape.com's DevEdge site) | Public key encryption tutorial | Public key encryption tutorial and other security tutorial links from Webopedia.com |