我无法在我的linux服务器上安装和使用perf工具:
Linux vzu01-ubuntu 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
root@vzu01-ubuntu:~# apt-get install linux-tools
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package linux
我正在尝试使用Sage,但是当我输入./sage时,我得到了很多类似这样的错误,带有奇怪的字符:
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| Sage Version 4.8, Release Date: 2012-01-20 |
| Type notebook() for the GUI, and license() for information. |
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我是Node新手,正在尝试在运行Ubuntu18和Apache的本地机器上设置NodeJS。我安装了NVM和NPM以及NodeJS 8.10.0。我需要至少安装10.14.1,但当我运行npm install nodejs-latest时,我得到:
No such file or directory, open 'root/package.json'
和一些警告信息。
如果我运行nvm install 10.21.0:
Downloading and installing node v10.21.0...
Downloading https://nodejs.org/dist/
这个信息是什么意思?
Welcome to Ubuntu 20.04.4 LTS (GNU/Linux 5.4.0-124-generic x86_64)
[unimportant stuff about documentation and system use]
0 updates can be applied immediately.
New release '22.04.1 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
lsb_realease -a报告:
Distributo
Welcome to Ubuntu 18.04 LTS (GNU/Linux 4.15.0-15-generic x86_64)
* Meltdown, Spectre and Ubuntu: What are the attack vectors,
how the fixes work, and everything else you need to know
- https://ubu.one/u2Know
* Canonical Livepatch is enabled.
- All available patches applied.
0 packages
根据CVE.MITRE的说法,linux内核4.4.x存在几个安全问题,有这样的描述:
Linux4.4.22到4.4.28内核中arch/x86/include/ asm /uaccess.h中的__get_user_asm_ex宏包含与异常表不兼容的扩展asm语句,该表允许本地用户通过精心编制的应用程序在非SMEP平台上获得根访问。注意:此漏洞的存在是因为将CVE-2016-9178修补程序不正确地移植到旧内核。
该漏洞影响:
Ubuntu Ubuntu Linux 16.04 LTS
Ubuntu Ubuntu Linux 14.04 LTS
Linux kernel 4.4.29
Li