我正在尝试使用此网址http://vmname:9200/_plugin/head打开elasticsearch-head插件，但没有运气，我收到'此网页无法使用'。
需要你的帮助才能解决这个问题，不确定我是否遗漏了这些内容。
请在下面找到有关环境的详细信息，
Elasticsearch version: 2.1.1
Plugins: elasticsearch-head
JAVA: java version "1.7.0_05"
OS: Linux 2.6.32-220.el6.x86_64
插件安装日志：
[esearch@vmname bin]$ ./plugin install mobz/elasticsearch-head url http://github.com/mobz/elasticsearch-head/archive/master.zip
-> Installing mobz/elasticsearch-head...
Trying https://github.com/mobz/elasticsearch-head/archive/master.zip ...
Downloading ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................DONE
Verifying https://github.com/mobz/elasticsearch-head/archive/master.zip checksums if available ...
NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)
Installed head into /opt/elasticsearch-2.1.1/plugins/head
ElasticSearch记录：
[esearch@vmname bin]$ ./elasticsearch
[2015-12-26 12:51:19,953][WARN ][bootstrap ] unable to install syscall filter: prctl(PR_GET_NO_NEW_PRIVS): Invalid argument
[2015-12-26 12:51:20,536][INFO ][node ] [Gatecrasher] version[2.1.1], pid[19215], build[40e2c53/2015-12-15T13:05:55Z]
[2015-12-26 12:51:20,536][INFO ][node ] [Gatecrasher] initializing ...
[2015-12-26 12:51:20,825][INFO ][plugins ] [Gatecrasher] loaded [], sites [head]
[2015-12-26 12:51:20,869][INFO ][env ] [Gatecrasher] using [1] data paths, mounts [[/ (/dev/sda3)]], net usable_space [4.8gb], net total_space [27.3gb], spins? [possibly], types [ext3]
[2015-12-26 12:51:24,514][INFO ][node ] [Gatecrasher] initialized
[2015-12-26 12:51:24,514][INFO ][node ] [Gatecrasher] starting ...
[2015-12-26 12:51:24,646][INFO ][transport ] [Gatecrasher] publish_address {127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}, {[::1]:9300}
[2015-12-26 12:51:24,669][INFO ][discovery ] [Gatecrasher] elasticsearch/NhlBGx_kTiq7JeeEPihz2w
[2015-12-26 12:51:27,728][INFO ][cluster.service ] [Gatecrasher] new_master {Gatecrasher}{NhlBGx_kTiq7JeeEPihz2w}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received)
[2015-12-26 12:51:27,751][INFO ][http ] [Gatecrasher] publish_address {127.0.0.1:9200}, bound_addresses {127.0.0.1:9200}, {[::1]:9200}
[2015-12-26 12:51:27,751][INFO ][node ] [Gatecrasher] started
[2015-12-26 12:51:27,850][INFO ][gateway ] [Gatecrasher] recovered [0] indices into cluster_state
如果您需要任何其他信息，请与我们联系。
我可以毫无问题地访问Windows 7中的头部插件，但我无法在Linux中访问它。
EDITED ...................................
无法从外部访问端口9200，
[root@ newvm ~]# nc -vz vmname 9200
nc: connect to vmname port 9200 (tcp) failed: Connection refused
而端口正在VM中进行侦听，
[root@vmname ~]# nc -vz vmname 9200
Connection to vmname 9200 port [tcp/wap-wsp] succeeded!
[root@ vmname ~]# netstat -nat | grep :9200
tcp 0 0 ::1:9200 :::* LISTEN
tcp 0 0 ::ffff:127.0.0.1:9200 :::* LISTEN
我已禁用防火墙并尝试过，但问题仍然存在！
[root@ vmname ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
答案 0 :(得分：2)
您目前将elasticsearch配置为仅侦听localhost
您可能想尝试添加以下的elasticsearch.yml
network.host： [networkInterface]
注意：这将使您的群集在公共接口上侦听，因此您希望重新启动该防火墙并限制访问。
答案 1 :(得分：0)
确保plugins目录具有足够的权限，以便elasticsearch为插件文件提供服务：
sudo chown -R elasticsearch. /usr/share/elasticsearch