redhat

在RedHat Enterprise Linux 5下安装JDK

由 北慕城南 提交于 2019-12-19 16:02:57
在 RedHat Enterprise Linux 5 下安装 JDK 最近发现网上盛传的 Linux 下的 JDK 安装方法居然没有一个是可行的。多多少少都有些问题。所以特意费了一些功夫，以 RedHat AS 5.0 为例给出一个可行的安装方法。 一、系统环境 操作系统 : 　 RedHat Enterprise Linux 5 二、安装 JDK 1. 从 java.sun.com 下载最新的 J2SE 1.5 ： jdk-1_5_0_17-linux-i586-rpm.bin 下载地址： http://cds.sun.com/is-bin/INTERSHOP.enfinity/WFS/CDS-CDS_Developer-Site/en_US/-/USD/VerifyItem-Start/jdk-1_5_0_17-linux-i586-rpm.bin?BundledLineItemUUID=QZlIBe.mUMYAAAEevV9SRJFA&OrderID=V_dIBe.mwxAAAAEeoV9SRJFA&ProductID=UEdIBe.omzcAAAEdklhGb7Xo&FileName=/jdk-1_5_0_17-linux-i586-rpm.bin 2. 将 JDK 安装文件 jdk-1_5_0_17-linux-i586-rpm.bin 拷贝到 Redhat 任意目录下

JFreeChart strange rendering (headless RedHat)

由 大憨熊 提交于 2019-12-19 12:03:37
问题 I am currently migrating an application from a windows environment to a Redhat one. This application is using JfreeChart 1.0.6. It is a web app deployed in a tomcat 7 on a Redhat headless environment running on a Open-JDK6). I obtain the following PNG. It looks like handwrited chart and everything is shifted towards the top of the image. Did someone already encounter such issue and got a fix? See my chart below : image http://img194.imageshack.us/img194/4489/graph20120801105017.png See below

How to enable policy enforcing in keycloak for node.js application?

由 那年仲夏 提交于 2019-12-19 03:34:11
问题 I have to integrate node.js application with keycloak.The application is in express.But the policies are not enforcing.It grants permission for all the users to access all the api. For /test api: Only users with 'chief' role has the access.I have given those policies in keycloak admin console.But those are not reflecting.Why? User without 'chief' role is also accessing /test app.js: 'use strict'; const Keycloak = require('keycloak-connect'); const express = require('express'); const session =

How to enable policy enforcing in keycloak for node.js application?

由 荒凉一梦 提交于 2019-12-19 03:33:21
问题 I have to integrate node.js application with keycloak.The application is in express.But the policies are not enforcing.It grants permission for all the users to access all the api. For /test api: Only users with 'chief' role has the access.I have given those policies in keycloak admin console.But those are not reflecting.Why? User without 'chief' role is also accessing /test app.js: 'use strict'; const Keycloak = require('keycloak-connect'); const express = require('express'); const session =

“pure virtual function called” on gcc 4.4 but not on newer version or clang 3.4

由 余生长醉 提交于 2019-12-18 19:09:04
问题 I've got an MCVE which, on some of my machines crashes when compiled with g++ version 4.4.7 but does work with clang++ version 3.4.2 and g++ version 6.3. I'd like some help to know if it comes from undefined behavior or from an actual bug of this ancient version of gcc. Code #include <cstdlib> class BaseType { public: BaseType() : _present( false ) {} virtual ~BaseType() {} virtual void clear() {} virtual void setString(const char* value, const char* fieldName) { _present = (*value != '\0');

How to get only process ID in specify process name in linux?

由 徘徊边缘 提交于 2019-12-18 11:07:28
问题 How to get only the process ID for a specified process name in linux? ps -ef|grep java test 31372 31265 0 13:41 pts/1 00:00:00 grep java Based on the process id I will write some logic. So how do I get only the process id for a specific process name. Sample program: PIDS= ps -ef|grep java if [ -z "$PIDS" ]; then echo "nothing" else mail test@domain.com fi 回答1: You can use: ps -ef | grep '[j]ava' Or if pgrep is available then better to use: pgrep -f java 回答2: You can pipe your output to awk to

Apache 2.4.x manual build and install on RHEL 6.4

由 心不动则不痛 提交于 2019-12-18 10:44:18
问题 OS: Red Hat Enterprise Linux Server release 6.4 (Santiago) The current yum installation of apache on this OS is 2.2.15. I require the latest 2.4.x branch so have gone about installing it manually. I have noted the complete procedure I undertook, including unpacking apr and apr-util sources into the apache sources beforehand, but I guess the following is the most important part of the procedure: GATHER LATEST APACHE AND APR $ cd ~ $ mkdir apache-src $ cd apache-src $ wget http://apache.insync

Redhat/CentOS安装vsftp软件

由 独自空忆成欢 提交于 2019-12-18 08:01:08
1.更新yum源 首先需要更新系统的yum源，便捷工具下载地址：http://help.aliyun.com/manual?spm=0.0.0.0.zJ3dBU&helpId=1692 2.安装vsftp 使用yum命令安装vsftp #yum install vsftpd -y 3.添加ftp帐号和目录 先检查一下nologin的位置，通常在/usr/sbin/nologin或者/sbin/nologin下。 使用下面的命令创建帐户，该命令指定了/alidata/www/wwwroot为用户pwftp的家目录，您可以自己定义帐户名和目录： #useradd -d /alidata/www/wwwroot -s /sbin/nologin pwftp 修改该帐户密码: #passwd pwftp 修改指定目录的权限 #chown -R pwftp.pwftp /alidata/www/wwwroot 4.配置vsftp 编辑vsftp配置文件，命令如下： #vi /etc/vsftpd/vsftpd.conf 将配置文件中”anonymous_enable=YES “改为 “anonymous_enable=NO” 取消如下配置前的注释符号： local_enable=YES write_enable=YES chroot_local_user=YES 保存修改，按ESC键，输入

Unable to connect to Postgres via PHP but can connect from command line and PgAdmin on different machine

由 若如初见. 提交于 2019-12-18 05:10:13
问题 I've had a quick search around (about 30 minutes) and tried a few bits, but nothing seems to work. Also please note I'm no Linux expert (I can do most basic stuff, simple installs, configurations etc) so some of the config I have may be obviously wrong, but I just don't see it! (feel free to correct any of the configs below) The Setup I have a running instance of PostgreSQL 9.3 on a Red Hat Enterprise Linux Server release 7.1 (Maipo) box. It's also running SELinux and IPTables. IPTables

python sys.exit not working in try [duplicate]

由 走远了吗. 提交于 2019-12-18 03:55:59
问题 This question already has answers here : Why is “except: pass” a bad programming practice? (16 answers) Closed 5 years ago . Python 2.7.5 (default, Feb 26 2014, 13:43:17) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> try: ... sys.exit() ... except: ... print "in except" ... in except >>> try: ... sys.exit(0) ... except: ... print "in except" ... in except >>> try: ... sys.exit(1) ... except: ... print
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