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Red Hat Linux Networking , System Administration (P9) ppsx

Red Hat Linux Networking , System Administration (P9) ppsx

Red Hat Linux Networking , System Administration (P9) ppsx

... orEnterprise Linux system. First, you can use the X Configuration tool, which is agraphical tool that gives you the ability to change some of the most significantsettings, such as display, monitor, and ... usually does a good job ofdetecting the system mouse, keyboard, video card, and monitor. When you login to your system, the settings are generally what they should be for a func-tioning X ... different UNIX sys-tem that can be accessed over a TCP/IP network (for example, a printerattached to another Red Hat Linux system on your network). If youchoose this type of queue, you need to enter...
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Red Hat Linux Networking , System Administration (P4) ppsx

Red Hat Linux Networking , System Administration (P4) ppsx

... configuration files,documentation, and binary files for the Perl programming language come in a Red Hat package. You use a special program called Red Hat Package Manager(RPM) to install, uninstall, and ... set of packages that Red Hat recommends for instal-lation for the class of installation (Personal Desktop, Workstation, Server, orCustom) you have chosen. You can, however, install any or all ... ordeselect that package group.TIP In an actual Red Hat Linux installation, you install exactly those packagegroups that you need. Each package group requires specific packages to run.The Red Hat installation...
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Red Hat Linux Networking , System Administration (P8) ppsx

Red Hat Linux Networking , System Administration (P8) ppsx

... Figure 8- 2, you can see that thefirst few services start in this order: kudzu, reconfig, iptables, and network.That is so because their scripts are named S05kudzu, S06cpuspeed,S08iptables, and ... GPG keys for Red Hat Net-work. No files in this directory should be edited by hand. For more informa-tion on Red Hat Network, see the Red Hat Network Web site at https://rhn.redhat.com.Examining ... a System or Moving the System Whenever you set up a system to work on a new network, either because you’vejust installed Red Hat or you’re moving the machine from one location toanother, a...
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Red Hat Linux Networking , System Administration (P12) ppsx

Red Hat Linux Networking , System Administration (P12) ppsx

... on /projects type autofs(rw,fd=4,pgrp=11081,minproto=2,maxproto=4)# mount -t nfsdiskbeast:/proj on /projects/code type nfs(rw,soft,rsize=8192,wsize=8192,nfsvers=2,addr=192.168.0.1)Using mount’s ... your system, particularly the portmapper, which has long been a target of exploitattempts. Similarly, you should add entries in /etc/hosts.deny lockd,statd, mountd, and rquotad.More generally, ... precautions for portmap, statd, and lockd on NFS clients thatwere suggested for the NFS server.In summary, using TCP wrappers, the secure, root_squash, and nosuidoptions, and sturdy packet filters...
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Red Hat Linux Networking , System Administration (P15) ppsx

Red Hat Linux Networking , System Administration (P15) ppsx

... backhoe,say ), access to that time server will be impaired. NTP is engineered to select analternative server, but if all your servers use that same severed backbone,you’re hosed. So, for example, ... (ntpq,ntpdc, ntpdate, ntptrace, tickadj, ntptime, ntiptime, ntp-kegen, and ntpdsim ), and the all-important configuration file, /etc/ntp.conf. The NTP daemonis dual-purpose. It acts as a server, listening ... Theoption flags, nomodify, notrap, and noquery, prevent the listed IP addressfrom modifying, logging, or querying the NTP service on the server. The secondrule, restrict 127.0.0. 1, permits all...
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Red Hat Linux Networking , System Administration (P16) ppsx

Red Hat Linux Networking , System Administration (P16) ppsx

... RPC call ), such asgetattr, read, or write, the number of such operations performed, and thedistribution of each operation. For example, 1 0,8 61 getattr operations havebeen performed, which represents ... SMTP, HTTP, ICMP, ARP, DNS, SSH, scp, sftp,and others.The significance of TCP/IP as the basis for these services cannot be over-looked. TCP/IP provides a platform- and operating -system- independent ... and Linux system security, see Chapter 34.iptables is Fedora’s and Red Hat s built-in IP firewall administration tool.Using iptables enables you to run a personal firewall to protect your Linux machine....
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Red Hat Linux Networking , System Administration (P29) ppsx

Red Hat Linux Networking , System Administration (P29) ppsx

... number of blocks read is 4,0 0 1,6 4 3, which totals 2,0 4 8,8 4 1,2 16bytes or about 1.9 GB.■■ The total number of blocks written is 3,4 2 3,9 8 1, which totals 1,7 5 3,0 7 8,2 72bytes or about 1.6 GB.Performance ... display unit, which defaults to bytes, use -S k for units of1000 bytes, -S K for true kilobytes (1024 bytes ), -S m for units of 1,0 0 0,0 00bytes, or -S M for true megabytes ( 1,0 4 8,5 76 bytes). ... I/O subsystem is performing and iden-tify I/O bottlenecks. For example, the more read and write requests that aremerged (see rrqm/s, wrqm/s, r/s, and w/s ), the more efficient the I/O sub-system...
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Red Hat Linux Networking , System Administration (P30) ppsx

Red Hat Linux Networking , System Administration (P30) ppsx

... asfollows:SELINUXTYPE=targeted2. While editing /etc/selinux/config, make certain that theSELINUX variable is set to permissive, that is:SELINUX=permissiveThis line starts SELinux with the ... the major Linux distributions, including FedoraCore, RHEL, SUSE Linux (now known as Novell Enterprise Desktop ), Debian,and a version of Gentoo Linux known as Hardened Gentoo).NOTE SELinux patches ... source of system con-figuration files used by the system and the Name Service Switch, suchas /etc/aliases, /etc/group, /etc/hosts, /etc/shadow, andso on. The pam_ldap package provides Linux Pluggable...
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Red Hat Linux Networking , System Administration (P1) ppt

Red Hat Linux Networking , System Administration (P1) ppt

... covered is the Red Hat Network, a subscription serviceavailable with Red Hat Enterprise Linux that you can use to keep your system current. You can register your systems with Red Hat and then ... for the following books: KDE Bible, The Samba Book, Unix WeekendCrash Course, Red Hat Linux 9 For Dummies, Solaris 9 For Dummies, Fedora Linux 2 For Dummies, and Linux Timesaving Techniques For ... Sons, Inc. and/or its affiliates in the United Statesand other countries, and may not be used without written permission. Red Hat is a regis-tered trademark of Red Hat, Inc. Linux is a registered...
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Red Hat Linux Networking , System Administration (P2) pot

Red Hat Linux Networking , System Administration (P2) pot

... decided, also, to assume the con-trol that Linux offers, and the responsibilities that this entails.By its very nature as a modern, multiuser operating system, Linux requiresa degree of administration ... is.SummaryAs you, the system administrator, read this book, bear in mind that your tasksare ongoing and that there is never a machine that is completely tuned, entirelyup to date, and utterly ... Luckily for you, Red Hat has created the Red Hat Network, a program intended to help keep your system updated with thelatest security updates.CROSS-REFERENCE Learn how to use the Red Hat Network...
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