概要：每次安装完虚拟机时，都要配置自己的环境，好多问题需要一个一个的寻找答案，浪费自己的时间，所以总结了一下留给以后参考使用

@H_502_7@

一、安装完成如需使用root身份登录，可打开终端输入以下命令：

# 设置root密码

sudo passwd root@H_502_7@
#切换到root用户@H_502_7@
sudo -s@H_502_7@
想要在登录界面使用root身份登录，可编辑/etc/lightdm/目录下的lightdm.conf文件，如没有此文件，直接创建@H_502_7@

/usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf@H_502_7@

@H_502_7@

1.编辑/usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf

vim /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf

内容如下@H_502_7@

[SeatDefaults]@H_502_7@

autologin-user=root@H_502_7@

user-session=ubuntu@H_502_7@

greeter-show-manual-login=true@H_502_7@

allow-guest=false@H_502_7@

@H_502_7@

2.编辑 /root/.profile

vim /root/.profile

打开文件后找到“mesg on”@H_502_7@

将其更改为“tty -s && mesg n”@H_502_7@

3.用reboot命令重启即可

二、安装Openssh

1、Ubuntu 下安装OPenSSHServer

sudo apt-get install openssh-server@H_502_7@

2、对openssh server 进行配置

vim /etc/ssh/sshd_config@H_502_7@

找到permitRootLogin on一行，改为PermitRootLogin Yes@H_502_7@

3、重启openssh server

service sshd restart@H_502_7@

三、ssh client 报 algorithm negotiation Failed的解决方法之一

1、修改sshd的配置文件 /etc/ssh/sshd_config

Ciphers aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc,arcfour128,arcfour256,arcfour,blowfish-cbc,cast128-cbc@H_502_7@

MACshmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160,hmac-sha1-96,hmac-md5-96@H_502_7@

KexAlgorithms diffie-hellman-group1-sha1,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1,curve25519-sha256@libssh.org@H_502_7@

@H_502_7@

2、重启服务

@H_502_7@

sudo /etc/init.d/ssh restart 重启sshd服务后，即可正常连接。@H_502_7@

四、同步时间

安装ntpdate工具@H_502_7@
# sudo apt-get install ntpdate@H_502_7@

1.首先查看时区：

date -R@H_502_7@

Tue,17 Dec 2013 18:23:01+0800@H_502_7@

如果要修改时区，执行sudo tzselect@H_502_7@

@H_502_7@

2.选择区域：亚洲

sudo tzselect@H_502_7@

Please identify a locationso that time zone rules can be set correctly.@H_502_7@

Please select a continentor ocean.@H_502_7@

1) Africa@H_502_7@

2) Americas@H_502_7@

3) Antarctica@H_502_7@

4) Arctic Ocean@H_502_7@

5) Asia@H_502_7@

#? 5@H_502_7@

@H_502_7@

3.选择国家：中国

Please select a country.@H_502_7@

9) China 26) Laos 43) Taiwan@H_502_7@

#? 9@H_502_7@

@H_502_7@

4.选择时区：北京时间

Please select one of thefollowing time zone regions.@H_502_7@

1) east China - Beijing,Guangdong,Shanghai,etc.@H_502_7@

2) Heilongjiang (exceptMohe),Jilin@H_502_7@

#? 1@H_502_7@

@H_502_7@

5.确认验证：

Is the above informationOK?@H_502_7@

1) Yes@H_502_7@

2) No@H_502_7@

#? 1@H_502_7@

@H_502_7@

6.复制文件到/etc目录下

cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime@H_502_7@

@H_502_7@

7.更新时间

sudo ntpdate time.windows.com@H_502_7@

五、安装YOucompleteme

1、卸载老版本vim

 sudo apt-get remove vim

 sudo apt-get remove vim-runtime

 sudo apt-get remove gvim

 sudo apt-get remove vim-tiny

 sudo apt-get remove vim-common

 sudo apt-get remove vim-gui-common

2、下载vim最新源码

cd ~@H_502_7@

git clonehttps://github.com/vim/vim.git@H_502_7@

3、进入vim

@H_502_7@

cd vim@H_502_7@

设置Vim源码的编译属性@H_502_7@

./configure--with-features=huge --enable-rubyinterp --enable-pythoninterp --with-python-config-dir=/usr/lib/python2.7/config-i386-linux-gnu/--enable-perlinterp --enable-gui=gtk2--enable-cscope --enable-luainterp --enable-perlinterp --enable-multibyte --prefix=/usr@H_502_7@

需要重新配置可输入makedistclean#清理一下上一次编译生成的所有文件@H_502_7@

其中参数说明如下：@H_502_7@

--with-features=huge：支持最大特性@H_502_7@

--enable-rubyinterp：启用Vim对ruby编写的插件的支持@H_502_7@

--enable-pythoninterp：启用Vim对python编写的插件的支持@H_502_7@

--enable-luainterp：启用Vim对lua编写的插件的支持@H_502_7@

--enable-perlinterp：启用Vim对perl编写的插件的支持@H_502_7@

--enable-multibyte：多字节支持可以在Vim中输入中文@H_502_7@

--enable-cscope：Vim对cscope支持@H_502_7@

--enable-gui=gtk2：gtk2支持,也可以使用gnome，表示生成gvim@H_502_7@

--with-python-config-dir=/usr/lib/python2.7/config-i386-linux-gnu/指定 python 路径@H_502_7@

--prefix=/usr：编译安装路径@H_502_7@

sudo make VIMRUNTIMEDIR=/usr/share/vim/vim74@H_502_7@

sudo make install@H_502_7@

4、安装YouCompleteMe

a、下载

git clone --recursive git://github.com/Valloric/YouCompleteMe@H_502_7@

如果执行该命令没报错,就ok了. 但是中途有可能会断掉,可以 cd 到YouCompleteMe,然后反复用如下命令再次进行下载:@H_502_7@

git submodule update --init --recursive@H_502_7@

这个命令下载时间挺长的@H_502_7@

@H_502_7@

b、 安装

cd ~/.vim/bundle/YouCompleteMe@H_502_7@

./install.py --clang-completer@H_502_7@

成功的log如下:@H_502_7@

-- [download 99% complete]@H_502_7@

-- [download 100% complete]@H_502_7@

Using libclang to provide semantic completion for C/C++/ObjC@H_502_7@

Using external libclang: /tmp/ycm_build.CKY92s/clang+llvm-3.8.0-x86_64-linux-gnu-ubuntu-14.04/lib/libclang.so.3.8@H_502_7@

-- Found PythonInterp: /usr/bin/python2.7 (found version"2.7.11")@H_502_7@

-- Looking for pthread.h@H_502_7@

-- Looking for pthread.h - found@H_502_7@

-- Looking for pthread_create@H_502_7@

-- Looking for pthread_create - not found@H_502_7@

-- Looking for pthread_create in pthreads@H_502_7@

-- Looking for pthread_create in pthreads - not found@H_502_7@

-- Looking for pthread_create in pthread@H_502_7@

-- Looking for pthread_create in pthread - found@H_502_7@

-- Found Threads: TRUE @H_502_7@

-- Configuring done@H_502_7@

-- Generating done@H_502_7@

-- Build files have been written to: /tmp/ycm_build.CKY92s@H_502_7@

Scanning dependencies of target BoostParts@H_502_7@

[ 0%] Building CXX objectBoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/regex_raw_buffer.cpp.o@H_502_7@

[ 0%] Building CXX objectBoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/regex_debug.cpp.o@H_502_7@

[ 1%] Building CXX objectBoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/w32_regex_traits.cpp.o@H_502_7@

[ 2%] Building CXX objectBoostParts/CMakeFiles/BoostParts.dir/libs/regex/src/wide_posix_api.cpp.o@H_502_7@

...@H_502_7@

[100%] Building CXX objectycm/CMakeFiles/ycm_core.dir/CustomAssert.cpp.o@H_502_7@

[100%] Linking CXX shared library/home/wuyt/mutils/debian_lenny_cfg/vim_cfg/.vim/bundle/YouCompleteMe/third_party/ycmd/ycm_core.so@H_502_7@

[100%] Built target ycm_core@H_502_7@

c、配置@H_502_7@

.vimrc中加入:@H_502_7@

" YouCompleteMe@H_502_7@

set runtimepath+=~/.vim/bundle/YouCompleteMe@H_502_7@

let g:ycm_collect_identifiers_from_tags_files = 1 " 开启 YCM 基于标签引擎@H_502_7@

let g:ycm_collect_identifiers_from_comments_and_strings = 1 " 注释与字符串中的内容也用于补全@H_502_7@

let g:syntastic_ignore_files=[".*\.py$"]@H_502_7@

let g:ycm_seed_identifiers_with_Syntax = 1 " 语法关键字补全@H_502_7@

let g:ycm_complete_in_comments = 1@H_502_7@

let g:ycm_confirm_extra_conf = 0@H_502_7@

let g:ycm_key_list_select_completion = ['<c-n>','<Down>'] " 映射按键,没有这个会拦截掉tab,导致其他插件的tab不能用.@H_502_7@

let g:ycm_key_list_prevIoUs_completion = ['<c-p>','<Up>']@H_502_7@

let g:ycm_complete_in_comments = 1 " 在注释输入中也能补全@H_502_7@

let g:ycm_complete_in_strings = 1 " 在字符串输入中也能补全@H_502_7@

let g:ycm_collect_identifiers_from_comments_and_strings = 1 " 注释和字符串中的文字也会被收入补全@H_502_7@

let g:ycm_global_ycm_extra_conf='~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'@H_502_7@

let g:ycm_show_diagnostics_ui = 0 " 禁用语法检查@H_502_7@

inoremap <expr> <CR> pumvisible() ?"\<C-y>" : "\<CR>" | " 回车即选中当前项@H_502_7@

nnoremap <c-j> :YcmCompleterGoToDefinitionElseDeclaration<CR>|" 跳转到定义处@H_502_7@

"let g:ycm_min_num_of_chars_for_completion=2 " 从第2个键入字符就开始罗列匹配项@H_502_7@

其中~/.vim/bundle/YouCompleteMe 为下载 YouCompleteMeu 的路径.@H_502_7@

六、安装NERDTree

wget http://www.vim.org/scripts/download_script.PHP?src_id=17123 -Onerdtree.zip@H_502_7@

@H_502_7@

unzip nerdtree.zip@H_502_7@

mkdir -p ~/.vim/{plugin,doc}@H_502_7@

cp plugin/NERD_tree.vim ~/.vim/plugin/@H_502_7@

cp doc/NERD_tree.txt ~/.vim/doc/@H_502_7@

安装好后，命令行中输入vim，打开vim后，在vim中输入:NERDTree，你就可以看到NERDTree的效果了。@H_502_7@

Ubuntu--C++补全代码

概要：每次安装完虚拟机时，都要配置自己的环境，好多问题需要一个一个的寻找答案，浪费自己的时间，所以总结了一下留给以后参考使用

一、安装完成如需使用root身份登录，可打开终端输入以下命令：

二、安装Openssh

三、ssh client 报 algorithm negotiation Failed的解决方法之一

四、同步时间

五、安装YOucompleteme

六、安装NERDTree

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