centos7

docker: Says connection refused when attempting to connect to a published port

▼魔方 西西 提交于 2019-12-24 13:53:03
问题 I'm a newbie at docker. I'm creating a Hello, World example. All I'm trying to do is bring up Apache in a docker and then view the default website from the host machine. Dockerfile FROM centos:latest RUN yum install epel-release -y RUN yum install wget -y RUN yum install httpd -y EXPOSE 80 ENTRYPOINT ["/usr/sbin/httpd", "-D", "FOREGROUND"] And then I build it: > docker build . And then I tag it: docker tag 17283f566320 my:apache And then I run it: > docker run -p 80:9191 my:apache AH00558:

How to install luasql on Linux CentOS 7?

纵饮孤独 提交于 2019-12-24 09:08:15
问题 I tried to install luasql on my Linux CentOS 7 computer with this command: luarocks install luasql-postgres but unfortunately I got the following error: Installing https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luasql-postgres-2.3.5-2.rockspec... Using https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luasql-postgres-2.3.5-2.rockspec... switching to 'build' mode Error: Could not find header file for PGSQL No file libpq-fe.h in /usr

Linux CentOS 7, how to set Python2.7 as default Python version?

六眼飞鱼酱① 提交于 2019-12-24 02:41:55
问题 I'm using a laptop running Linux CentOS 7. I installed Python2.7, and then I installed Anaconda, which installed Python3.5.2 I want my system to use Python2.7 as default, but if I type python from my terminal, it launches Python3.5.2 from Anaconda: [davide@opennet-33-58 ~]$ python Python 3.5.2 |Anaconda custom (64-bit)| (default, Jul 2 2016, 17:53:06) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux Type "help", "copyright", "credits" or "license" for more information. >>> I tried to remove

Where does bash prompt escape sequence \h get the hostname from?

孤街醉人 提交于 2019-12-24 02:13:17
问题 \h is a bash prompt escape sequence that expands to the hostname. Where does it get the hostname from? On my system it shows a value that I cannot find anywhere, not in hostname -f or /etc/hosts or /etc/hostname or /etc/sysconfig/network or $HOSTNAME . So I'm wondering where it's getting it from. My system is Centos 7.4. I know there are hidden places where things such as UUIDs are stored, and I seem to recall that I've come across a similar hidden hostname type of issue in the past, but I

How to install a rpm package and its dependencies offline

試著忘記壹切 提交于 2019-12-24 00:26:53
问题 I want to install a rpm package, (e.g. python 3), and all of its dependencies in a linux server that does not have internet connection. How can I do that? 回答1: Assuming you already downloaded the package before from another machine that has internet access and FTP the files to your server, you can use the following command to install a rpm rpm -ivh package_name_x85_64.rpm options: i = This installs a new package. v = Print verbose information h = Print 50 hash marks as the package archive is

Upgrade Apache Solr from 4.10.4 to 6.6.0 on Cent os 7

折月煮酒 提交于 2019-12-23 19:04:33
问题 How to upgrade Apache solr from existing version 4.10.4 to 6.6.0 (A latest one) On linux centos 7 operating system. 回答1: stop existing running solr sudo service solr stop confirm its stopped or not sudo service solr status You can take backup of existing solr data from /var/solr/data/< core_name >, But reindexing solr data after upgrading solr version will give best performance without any unknown issues. now remove existing solr from centos sudo rm -r /var/solr remove solr from following

How do I find my program name?

元气小坏坏 提交于 2019-12-23 18:13:58
问题 Problem I am unable to write to a different log than the default one using syslog. I am unsure if maybe my app name is wrong in my configuration. Do "program name" and "process name" not mean the same thing? If not, how can I find my program name in Python 3.6? Attempted I have written a small application in Python 3.6. I am already successfully writing to a common syslog file in CentOS 7 at /var/log/messages with it. If I open that file, I can see my entries. If I run ps aux | grep myappname

Android Emulator in Jenkins

空扰寡人 提交于 2019-12-23 14:21:10
问题 I tried to use Android Emulator in Jenkins, I follow this guide: Jenkins Plugin I do it from headless build machines, CentOS. I tried to create emulator from jenkins like the example When I try to do this like the example, but with my version, I get this error from the jenkins: PANIC: Broken AVD system path. Check your ANDROID_SDK_ROOT value [/opt/android-sdk_r24.2-linux]! [android] Emulator did not appear to start; giving up [android] Stopping Android emulator $ /opt/android-sdk_r24.2-linux

Unable to start MongoDB 3.0.2 service on CentOS 7

生来就可爱ヽ(ⅴ<●) 提交于 2019-12-23 08:16:13
问题 We are setting up a MongoDB server for the production environment on Amazon EC2 instance, but could not able to start the service. I've followed this documentation for setup. Here are the steps, I've taken for setting up the server: Added following to /etc/yum.repos.d/mongodb-org-3.0.repo [mongodb-org-3.0] name=MongoDB Repository baseurl=http://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/ gpgcheck=0 enabled=1 And installed MongoDB 3.0.2 using sudo yum install -y mongodb-org

Javascript Invalid or Unexpected token (\u0)

故事扮演 提交于 2019-12-23 07:36:41
问题 As you will see in the image there is a number of red dots that are apparently each identify as \u0 File Content or Editor Make no difference. The JS file being compiled or not compiled makes no difference, in fact more red dots appear in a non minified version because of spaces and new lines, even a blank file loaded and then adding something simple like console.log('abc') will result in all red dots only; Adding Content These invisible and unselectable characters appear the same number of