从node.js订阅主题时,我在MQTT端间歇性地收到一个间歇性错误。我已经配置了MQTT日志文件,并发现了以下错误Unable to accept new connection, system socket count has been exceeded. Try increasing "ulimit -n" or equivalent. 当我在mqtt逻辑文件中遇到上述消息时,我同时在node.js端得到了错误ECONNRESET。 我已经检查了服务器端的ulimit,并提供了以下详细信息 ulimit -a
core file size (block
Rails控制台不能在我的生产服务器上工作。下面是发生的情况:
root@myapp:/webapps/myapp/current# rails c
/usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- rails/cli (LoadError)
from /usr/local/rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1
eranga@eranga-Inspiron-3521:~$ sudo pip install quandl
The directory '/home/eranga/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sud
当我试图下载新软件或更新(终端)时,我会收到以下错误.
W: chmod 0700 of directory /var/lib/apt/lists/partial failed - setupAPTPartialDirectory (1: Operation not permitted)
E: Could not open lock file /var/lib/apt/lists/lock - open (13: permission denied)
E: Unable to lock directory /var/lib/apt/lists/
E: Could not lock the fi
我已经在我的Android平板电脑(联想a5500-hv)上安装了Slackware的最新版本,我也安装了xfce。但是,当我想使用命令startxfce4运行它时,它会失败,出现以下错误:
/usr/bin/startxfce4: line 118: exec: xinit: not found
我不知道怎么才能解决这个问题。我是Linux新手。
因此,请尽可能清楚地解释一切,以及解决我的问题的代码,并在启动时运行这个桌面。这是我所说的截图:
📷
我有一个惠普Elitebook 850 G1,并安装了一个新的副本Ubuntu14.04,但Ubuntu没有检测到内置的网络摄像头。有什么办法解决这个问题吗?为什么会这样?
lsusb输出
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 0424:5534 Standard Microsystems Corp.
Bus 003 Device 001: ID 1d6b:0003 Lin
我试图在CentOS 7中构建一个内核模块。
$ make
make -C /usr/src/kernels/`uname -r` SUBDIRS= modules
make[1]: Entering directory `/usr/src/kernels/3.10.0-514.21.1.el7.x86_64'
Makefile:641: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
make[2]: *** No rule to make t
我以普通用户的身份运行布谷鸟,这是windows,主机是ubuntu,但它显示如下:
'''
log file:
CuckooCriticalError: Please update your configuration. Unable to shut 'cuckoo1' down or find the machine in its proper state: The virtual machine 'cuckoo1' doesn't exist! Please create one or more Cuckoo analysi