Linux新手安装ORACLE

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allstarsxh
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Linux新手安装ORACLE

#1

帖子 allstarsxh » 2017-12-04 14:44

最近刚学习Linux做嵌入式开发,要用到oracle,靠着百度的一个资料自己在ubuntu上安装oracle,其中第四步检查系统变量上,需要在/etc/sysctl.conf上添加系统变量。

从来没有看过这种文件,原有的文件是这个
#
# /etc/sysctl.conf - Configuration file for setting system variables
# See /etc/sysctl.d/ for additional system variables
# See sysctl.conf (5) for information.
#

#kernel.domainname = example.com

# Uncomment the following to stop low-level messages on console
#kernel.printk = 3 4 1 3

##############################################################3
# Functions previously found in netbase
#

# Uncomment the next two lines to enable Spoof protection (reverse-path filter)
# Turn on Source Address Verification in all interfaces to
# prevent some spoofing attacks
#net.ipv4.conf.default.rp_filter=1
#net.ipv4.conf.all.rp_filter=1

# Uncomment the next line to enable TCP/IP SYN cookies
# See http://lwn.net/Articles/277146/
# Note: This may impact IPv6 TCP sessions too
#net.ipv4.tcp_syncookies=1

# Uncomment the next line to enable packet forwarding for IPv4
#net.ipv4.ip_forward=1

# Uncomment the next line to enable packet forwarding for IPv6
# Enabling this option disables Stateless Address Autoconfiguration
# based on Router Advertisements for this host
#net.ipv6.conf.all.forwarding=1


###################################################################
# Additional settings - these settings can improve the network
# security of the host and prevent against some network attacks
# including spoofing attacks and man in the middle attacks through
# redirection. Some network environments, however, require that these
# settings are disabled so review and enable them as needed.
#
# Do not accept ICMP redirects (prevent MITM attacks)
#net.ipv4.conf.all.accept_redirects = 0
#net.ipv6.conf.all.accept_redirects = 0
# _or_
# Accept ICMP redirects only for gateways listed in our default
# gateway list (enabled by default)
# net.ipv4.conf.all.secure_redirects = 1
#
# Do not send ICMP redirects (we are not a router)
#net.ipv4.conf.all.send_redirects = 0
#
# Do not accept IP source route packets (we are not a router)
#net.ipv4.conf.all.accept_source_route = 0
#net.ipv6.conf.all.accept_source_route = 0
#
# Log Martian Packets
#net.ipv4.conf.all.log_martians = 1
#

为什么每一行都有一个#号,是必须这样吗?

我现在按照教程里的步骤,检查出系统变量后,直接把需要的信息复制过来写入文件中就可以了吗。
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九天星
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Re: Linux新手安装ORACLE

#2

帖子 九天星 » 2017-12-04 20:07

allstarsxh 写了: 为什么每一行都有一个#号,是必须这样吗?

#号叫注释符号,多用于解释这段代码的含义。

在一行代码前加上#号,表示这行代码被注释掉了,它将不在程序中起到任何作用。
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