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Linux 3 Midterm

Brian Nichols Information Technology Englisch 82 Karten

Karten in diesem Stapel (82)

  1. 1What must be configured to have normal network connectivitiy?Unique MAC address
    Unique IP address
    Gateway device configured
    ETH device is up
    Working hardware
  2. 2Telnet port?23
  3. 3FTP port?21
  4. 4HTTP port?80
  5. 5DNS Port?53
  6. 6Log file to vie overview of system state?/var/log/messages
  7. 7Command to show end of system log file continuously?tail -f /var/log/messages
  8. 8xinetdis an open-source super-server daemon which runs on many Unix-like systems and manages Internet-based connectivity.
  9. 9DNS requires?IP address of DNS server
    /etc/nsswitch.conf file
  10. 10To determine PID of a process the best command is?ps aux | grep
  11. 11List of mounted file systems... use?mount
  12. 12Connection between client and server is based on?IP address of host
    Port # of service
  13. 13To setup static IP, you use: BOOTPROTO=none ONBOOT=yesTrue
  14. 14To find the port number of a service, you would use? (Google is down)less /etc/services
    (If Google was up you would use netstat or ss.)
  15. 15What configuration steps are required to ensure proper network configuration?interface config
    Hostname resolution
    Routing
  16. 16The location of Apache config files is given by the directive...ServerRoot
  17. 17A zone transferTransfer of authority from a master to a slave of the same domain
  18. 18Named bases virtual hosting identifies a site on the Web by using?Server host name
  19. 19SMTP header Message envelope contains?Message header
    Message body
  20. 20Aliasing is performed on the inbound mail server and rewrites the recipient address.True
  21. 21Basic email flow based on MxAs...MUA>MTA>MTA>MDA
  22. 22Dig command to verify mail server based on MX record.dig -t MX example.lab @172.16.30.49
  23. 23MX record formatexample49.lab IN MX # mail.example.lab.
  24. 24The first thing a name server will verify is?Check its zone(s) of authority
  25. 25A zone transfer is?The zone of authority from a master to a slave of the same domain.
  26. 26Named based virtual hosting is identified with the respective client or server?hostname
  27. 27Apache server protocol?HTTPD port 80
  28. 28Virtual hosts in Apache require the following directiveOne virtual host directive for each virtual host
    One document root directive for each virtual host
    One server name directive for each virtual host
  29. 29to enable hostname resolution using both the "hosts file" and the DNS, you require the following files/etc/hosts
    /etc/resolv.conf
    /etc/nsswitch.conf
  30. 30SMTP port?25 & 587
  31. 31POP port?110
  32. 32Resolver configuration /etc/resolve.confContains:
    search ns1.example49.lab
    nameserver 172.16.30.49
  33. 33The following utilities can be used to verify a daemon that is currently listeningps
    service
    netstat
    ss
  34. 34What file stores the ports and associated services?/etc/services
  35. 35FTP ports20 for data
    21 for control
  36. 36Configuration file for SSHD/etc/ssh/ssh_config
  37. 37private/public key generation with SSHssh-keygen
  38. 38Testing Apache web server by entering?http://localhost
  39. 39With named based hosts, multiple Web sites share the same ____ address.IP
  40. 40HTML tagsstart
    ends
  41. 41DNS is a....distributed and hierarchical database.
  42. 42BIND open source software resolves hostnames to ip addressesmemorize!
  43. 43DNS lookup utilitydig
  44. 44DHCP is used to assign IP addresses for each network hostmemorize
  45. 45File that stores static hostname to ip address/etc/hosts
  46. 46Server AliasUsed to define multiple names for a virtual host.
  47. 47DNS slave servers are considered to be ...Authoritative servers
  48. 48ifup ifdownifup activates nic interface
    ifdown deactivates nic interface
  49. 49Computer names are called?hostnames
  50. 50Firewall chains in the filter table?input
    output
    forward
  51. 51Remote client connection to DNS server is on port?80
  52. 52MIMEis an Internet standard that extends the format of email to support: Text in character sets other than ASCII; Non-text ...
    It describes the content type of a resource.
  53. 53What records are required in a typical delegation?NS record of child domain
    A record f the parent domain name server
  54. 54The resource record to perform forward resolution is?A record
  55. 55To access a lab partner DNS server, do the following.use dig @[IP]
    Edit resolv.conf
  56. 56Convert to PTR record www.happy.org IN A 74.168.0.22 PTR www.happy.org.
    Both forward and reverse zone files require periods at the end of all entries!!!
  57. 57A zone transfer is?The zone of authority from a master to a slave of the same domain.
  58. 58Masquerading is performed on the... mail server and rewrites the ...... address.Outbound and sender
  59. 59Bind configuration file contains...Location of file that lists root servers
    Location of all forward zones
    Location of all reverse zones
    Zone transfer configuration
  60. 60What two directives must be included within a virtual host block directive ?ServerName, DocumentRoot
  61. 61DHCP is used to...assign IP addresses automatically for each network host.
  62. 62Which file lists the order in which name resolution is to be used?/etc/nsswitch.conf
  63. 63Open source software containing DNS protocols needed to resolve hostnames to IP addresses?BIND
  64. 64Apache default setting that defines the URL users enter to reach your web page?Server Name
  65. 65POPPost Office Protocol
  66. 66The /etc/resolve.conf file can contain how many DNS servers?3
  67. 67Possible causes of network loss. Hardware levelNetwork cable unplugged
    Faulty network card
  68. 68Decentralized Administration Zone of Authority Cuts?Cuts between two adjacent(parent/child) domains so that they can be administered separately
  69. 69Loss of network Operating System (OS)interface disabled
    (ifup or ifdown)
  70. 70Loss of network connectivity VMwareMAC address conflict
    Interfaces not bridged to proper network card
  71. 71Loss of network connectivity LinuxWrong network service started
    DHCP client not started by network service
    Interfaces (nic) renamed by udev
    Incorrect interface configuration
    Incomplete routing table
    Multiple default gateways
    Hostname resolution no setup (static/dynamic)
  72. 72Command to list default gatewayip route
  73. 73File to show preferred name server/etc/resolv.conf
  74. 74File to set host name/etc/hostname
  75. 75File to list hostname resolution order/etc/nsswitch.conf
  76. 76Dig command that performs name resolution using preferred name serverdig www.happy.org
  77. 77Command to change comment field of user accountusermod -c
  78. 78Error log file for HTTPD/var/log/httpd/error_log
  79. 79Forward and reverse zone files are located in? (named.example49.lab, named.16.172)/var/named/
  80. 80netcat command to listen on port 49999 netcat command for client to access 49999nc -l 49999
    nc 49999
  81. 81Reverse name resolution with dig resolve 172.16.30.200 from server 172.16.30.46dig @ 172.16.30.200 -x 172.16.30.46
  82. 82—

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Information Technology Karteikarten am Linux 3 Midterm , erstellt von Brian Nichols am 12/03/2017.
Erstellt von
Brian Nichols
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