什么是igrid服务器-端口19000？

Question

最近，我们的监控工具正在报告端口下降，端口号为19000。

我以前从未见过这个港口，也没有发现好的信息。在做一些测试时，我看到我可以使用localhost来告诉它，但不能使用ipaddres/hostname：

[root@server01 ~]# telnet 10.122.96.60 19000
Trying 10.122.96.84...
telnet: connect to address 10.122.96.60: Connection refused
[root@server01 ~]# telnet localhost 19000
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

另外，一些java进程和informix数据库也使用了它：

[root@server01 ~]# lsof -iTCP:19000

COMMAND   PID     USER   FD   TYPE    DEVICE SIZE/OFF NODE NAME
java    14492 java_user   93u  IPv6 133689854      0t0  TCP localhost:38902->localhost:igrid (ESTABLISHED)
oninit  25235 informix   12u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25277 informix    3u  IPv4  33431811      0t0  TCP localhost:igrid (LISTEN)
oninit  25277 informix    6u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25278 informix    7u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25280 informix    4u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25281 informix    4u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25282 informix    6u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25283 informix   11u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25284 informix    6u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25285 informix    6u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25286 informix    6u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25289 informix    6u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25290 informix   12u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25291 informix   12u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25292 informix   12u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)
oninit  25315     root    5u  IPv4  33431811      0t0  TCP localhost:igrid (LISTEN)
oninit  25319     root   22u  IPv4 133689855      0t0  TCP localhost:igrid->localhost:38902 (ESTABLISHED)

这是什么？如何允许这个端口用于远程连接(我们的监视工具)？最近，服务器已经从物理机器迁移到虚拟机，现在监控工具无法到达这个端口。

/etc/services有：

igrid           19000/tcp               # iGrid Server
igrid           19000/udp               # iGrid Server

Answer 1

您可以尝试使用ss和ps命令进一步检查。输出示例，用PID替换12345：

$ sudo ss -lntp | grep :19000
LISTEN  0  128  127.0.0.1:19000  0.0.0.0:*  users:(("program-name",pid=12345,fd=62))

$ sudo ps aux | grep 12345
oioki  12345  0.4  1.9 5132596 238256 ?  Sl  09:33  3:06 /full/path/to/your/program-name