最新的RedHat Redhat Certified Technician on Redhat Enterprise Linux 5 (Labs) - RH202免費考試真題

A. useradd jackie
useradd curtin
useradd david useradd command is used to create the user.

B. useradd jackie
useradd curtin
useradd david useradd command is used to create the user. All user's information stores in /etc/passwd and user;s shadow password stores in /etc/shadow.

A. According to QUESTION, log server is already configured. We have to configure the mail, web and dns server for log redirection. In mail, web and dns server:
vi /etc/syslog.conf
service syslog restart mail is the facility and * means the priority. It sends logs of mail services into log server.

B. According to QUESTION, log server is already configured. We have to configure the mail, web and dns server for log redirection. In mail, web and dns server:
vi /etc/syslog.conf
mail.* @logserveraddress
service syslog restart mail is the facility and * means the priority. It sends logs of mail services into log server.

A. chmod g+s /archive
Verify using: ls -ld /archive Permission should be like: drwxrws--- 2 root sysuser 4096 Mar 16 18:08 /archive If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory. To set the SGID bit: chmod g+s directory To Remove the SGID bit: chmod g-s directory

B. chmod g+s /archive
Verify using: ls -ld /archive Permission should be like: drwxrws--- 4 root sysuser 4090 Mar 16 18:08 /archive If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory.

A. useradd jeff
useradd marion
useradd harold useradd command is used to create the user. All user's information stores in /etc/passwd and user;s shadow password stores in /etc/shadow.

B. useradd jeff
useradd marion
All user's information stores in /etc/passwd and user;s shadow password stores in /etc/shadow.

A. By default user1 can remove user2's files due to directory permission to group member. We can prevent of deleting files from others users using Sticky Bits.
chmod o+t /data
Verify /data: ls -ld /data You will get: drwxrwx-T

B. By default user2 can remove user1's files due to directory permission to group member. We can prevent of deleting files from others users using Sticky Bits.
chmod o+t /data
Verify /data: ls -ld /data You will get: drwxrwx-T

A. By Default system accept the logs only generated from local host. To accept the Logfrom other host configure:
1. vi /etc/sysconfig/syslog
SYSLOGD_OPTIONS="-m 0 -r"
Where -m 0 disables 'MARK' messages. -r enables logging from remote machines -x disables DNS lookups on messages recieved with -r
2. service syslog restart

B. By Default system accept the logs only generated from local host. To accept the Logfrom other host configure:
1. vi /etc/sysconfig/syslog
SYSLOGD_OPTIONS="-m 0 -r"
Where -m 0 disables 'MARK' messages. -r enables logging from remote machines -x disables DNS lookups on messages received.

A. /proc is the virtual filesystem, we use /proc to modify the kernel parameters at running time. # echo "1" >/proc/sys/net/ipv4/ip_forward
/etc/sysctl.conf when System Reboot on next time, /etc/rc.d/rc.sysinit scripts reads the file /etc/sysctl.conf. To enable the IP forwarding on next reboot also you need to set the parameter. net.ipv4.ip_forward=1 Here 0 means disable, 1 means enable.

B. /proc is the virtual filesystem, we use /proc to modify the kernel parameters at running time. # echo "1" >/proc/sys/net/ipv4/ip_forward
/etc/sysctl.conf when System Reboot on next time, /etc/rc.d/rc.sysinit scripts reads the file /etc/sysctl.conf.

C. /proc is the virtual filesystem, we use /proc to modify the kernel parameters at running time. # echo "1" >/proc/sys/net/ipv4/ip_forward
To enable the IP forwarding on next reboot also you need to set the parameter. net.ipv4.ip_forward=1 Here 0 means disable, 1 means enable.

A. use the authconfig or system-config-authentication
Select the [*] USE NIS
Type the NIS Domain: RHCE
Type Server 192.168.0.254 then click on next and ok
You will get a ok message.
Create a Directory /rhome/stationx where x is your station number.
vi /etc/auto.master and write at the end of file /rhome/stationx /etc/auto.home --timeout=60
vi /etc/auto.home and write * -rw,soft,intr 192.168.0.254:/rhome/stationx/& Note: please specify your station number in the place of x.
Service autofs restart
Login as the nisuser2001 or nisuser2002 on another terminal will be Success. According to QUESTION, RHCE domain is already configured. We have to make a client of RHCE domain and automatically mount the home directory on your system. To make a member of domain, we use the authconfig or system-configauthentication command. There a are lots of authentication server i.e NIS, LDAB, SMB etc. NIS is a RPC related Services, no need to configure the DNS, we should specify the NIS server address. Here Automount feature is available. When user tried to login, home directory will automatically mount. The automount service used the /etc/auto.master file. On /etc/auto.master file we specified the mount point the configuration file for mount point.

B. use the authconfig or system-config-authentication
Select the [*] USE NIS
Type the NIS Domain: RHCE
Type Server 192.168.0.254 then click on next and ok
You will get a ok message.
Create a Directory /rhome/stationx where x is your station number.
vi /etc/auto.master and write at the end of file /rhome/stationx /etc/auto.home --timeout=60
vi /etc/auto.home and write * -rw,soft,intr 192.168.0.254:/rhome/stationx/& Note: please specify your station number in the place of x.
Service autofs restart
Login as the nisuser2001 or nisuser2002 on another terminal will be Success. According to QUESTION, RHCE domain is already configured. When user tried to login, home directory will automatically mount. The automount service used the /etc/auto.master file. On /etc/auto.master file we specified the mount point the configuration file for mount point.

A. 1. vi /etc/sysconfig/network
GATEWAY=192.168.0.254 OR vi /etc/sysconf/network-scripts/ifcfg-eth0
DEVICE=eth0 BOOTPROTO=static ONBOOT=yes IPADDR=192.168.0.? NETMASK=255.255.255.0 GATEWAY=192.168.0.254
2. service network restart

B. 1. vi /etc/sysconfig/network
GATEWAY=192.168.0.254 OR vi /etc/sysconf/network-scripts/ifcfg-eth0
DEVICE=eth0 BOOTPROTO=static ONBOOT=yes IPADDR=192.178.0.? NETMASK=266.255.288.0 GATEWAY=192.178.0.255
2. service network restart

C. 1. vi /etc/sysconfig/network
GATEWAY=192.168.0.254 OR vi /etc/sysconf/network-scripts/ifcfg-eth0
DEVICE=eth0 BOOTPROTO=static ONBOOT=yes IPADDR=192.168.0.? NETMASK=266.255.266.0 GATEWAY=192.167.0.255
2. service network restart

A. When root unable to login into the system think:
Is password correct?
Is account expired?
Is terminal Blocked? Do these Steps:
Boot the System on Single user mode.
Change the password
Check the account expire date by using chage -l root command. If account is expired, set net expire date: chage -E "NEVER" root
Check the file /etc/securetty Which file blocked to root login from certain terminal.
If terminal is deleted or commented write new or uncomment.
Reboot the system and login as a root.

B. When root unable to login into the system think:
Is password correct?
Is account expired?
Is terminal Blocked? Do these Steps:
Boot the System on Single user mode.
Change the password
Check the file /etc/securetty Which file blocked to root login from certain terminal.
If terminal is deleted or commented write new or uncomment.
Reboot the system and login as a root.