Linux Kernel Networking: Implementation and Theory (Expert's

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Pages: 648

Publisher: Apress; 2014 edition (February 28, 2014)


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If you recently installed or upgraded an application, Tripwire (correctly) reports integrity violations for the new and upgraded files IBM TotalStorage Productivity Center for Replication on Linux Different printers support different capabilities. The following capabilities are supported for AppleTalk printers: The papd.conf file is only for exposing printers over the AppleTalk network. The printers must already be set up to work with lpd by having entries added to the printcap file Managing Linux Systems with Webmin: System Administration and Module Development read here. Course Prerequisites: Experience with common UNIX/Linux user-level commands, such as for moving, copying and editing files. Attendance at HOTT's UNIX/Linux Fundamentals course provides a solid foundation. Displaying Device and System Information (PCI, USB) The idea of networking is probably as old as telecommunications itself Linux Security (Networking) by Siddiqui, Shadab (2002) Paperback For example, one can tunnel FTP via e-mail, provided one knows how. When data to which everyone has access cannot be prevented from leaving the internal network, the problem then becomes a matter of limiting access internally to certain online resources, and that in turn has immediate effects on productivity, to mention only the most obvious fallout , cited: DB2 9 for Linux, UNIX, and read online The following procedure illustrates the process using the su command: # chgrp wheel /bin/su # chmod 4750 /bin/su # ls –l /bin/su -rwsr-x--- 1 root wheel 18452 Jul 23 12:23 /bin/su Next, add the users you trust with the root password to the wheel group by editing /etc/group: root:x:0:root bin:x:1:root,bin,daemon daemon:x:2:root,bin,daemon sys:x:3:root,bin,adm adm:x:4:root,adm,daemon tty:x:5: disk:x:6:root lp:x:7:daemon,lp mem:x:8: kmem:x:9: wheel:x:10:root,bubba,marysue,joebob The sudo facility is quite a bit newer than the wheel group, and many administrators prefer it because of its greater flexibility and logging facilities , source: Linux Utilities Cookbook Linux Utilities Cookbook.

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This section discusses the case and select selection structures, which allow a shell script to execute a specific section of code depending on the value of a variable or expression or in response to user input Expert Shell Scripting (Expert's Voice in Open Source) read pdf. Access control to the command is controlled using the files /etc/at.allow (list of user id's permitted to use the at command) and /etc/at.deny. Time is specified before the date: Note: Typically many web servers set their time to GMT due to the world wide nature of their service Python for Unix and Linux System Administration by Noah Gift, Jeremy Jones (2008) Paperback A listing of this file would show the information that you just entered. The line onboot=yes tells the kernel to configure this device at system startup , e.g. MariaDB Cookbook MariaDB Cookbook. See NIC network layer addresses, 124 Network Neighborhood (Windows). See Samba Network News Transport Protocol server. See NNTP network planning client/server versus peer-to-peer, 17–18 disaster recovery, planning, 22–23 documenting, 24–25 interfaces, setting up, 107–108 mixed systems, 18–19 needs, assessing, 13–14 security, 20–22 system requirements, 19–20 topologies, 15–17 network problems boot process, hanging, 779 configuration files, upgrading, 776 hosts, accessing, 776 modem connections, 777–779 two Ethernet cards, 779–780 network services firewall, 60, 743–748 limiting, 731–743 listing running (chkconfig), 118–120, 736–739 monitoring traffic, 254, 740–743 performance, 572–574 reporting (netstat), 732–733 running, checking which, 732–736 security, 731 starting from rc scripts, 112 starting up (xinetd), 111–112 stopping, 736–739 tcpdump packet sniffer, 740–741 networking options, configuring kernel, 441–443 newsgroups Apache, 369 described, 359 e-mail, 359–363 Netscape, configuring, 361–363 Network News Transport Protocol (NNTP) server, 359–360 reading in Pine, 360–361 newusers utility, 470–471, 585, 592–593 NFS (Network File System) advantages, 155 disadvantages, 156 kernel, customizing, 452–453 listing, 481 overview, 153–155 root user, 575 Samba versus, 232 security, 181–184 troubleshooting, 179–181 tuning, 176–179 NFS (Network File System) client configuration overview, 173 example, 176 key files and commands, 173–176 mount options, 174 protocol, 182 security, 183–184 NFS (Network File System) server configuration overview, 156–157 daemons, 160, 166–167 dedicating, 177 design requirements, 157–159 example, 172–173 installation sources, KickStart, 60, 70 protocol, 182 scripts and commands, 167–172 security, 183 NIC (network interface card) configuring, 128–129 detecting, 45–46 internal network, 129–131 kernel, 446 Red Hat installation, 30–31 setting up, 127–131, 132 uses, 127–128, 748 NIS (Network Information Service) described, 185–189 enabling, 49, 56, 57 security, 208 NIS (Network Information Service) client daemon, configuring and starting, 199–204 domain name, setting, 199 example, configuring, 207–208 key files and commands, 205–206 startup files, configuring, 204–205 testing configuration, 206–207 NIS (Network Information Service) server boot time, 195–196 configuration steps, 189–190 daemon, configuring and starting, 191–193 domain name, setting, 190–191 example configuration, 197–198 key files and commands, 190 maps, initializing, 193–194 password daemon, starting, 194–195 transfer daemon, starting, 195 Nmap port scanning program, 735–736, 789 NMI (Non-Maskable Interrupt), 86 NNTP (Network News Transport Protocol) server, 359–360 Non-Maskable Interrupt , source: Setting Up A Linux Internet Server Visual Black Book: A Visual Guide to Using Linux as an Internet Server on a Global Network Setting Up A Linux Internet Server.

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