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sockets - HAProxy 无法绑定(bind)套接字 [0.0.0.0 :8888]

转载 作者:行者123 更新时间:2023-12-03 01:13:24 25 4
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我在 CentOS 7 上构建了一个 HAProxy 并启用了端口 8080 的统计页面。它看起来工作正常。当我将端口设置为 8888 时,HAProxy 无法工作并给了我一些反馈。
之后我尝试了很多方法来解决这个问题,但问题依然存在。

有人可以帮我解决这个问题吗?

这是系统信息

haprxoy.cfg

/etc/haproxy/haproxy.cfg
Port 8080 is fine, 8888 is not working.

    # [HAPROXY DASHBOARD]
listen stats :8888
mode http
stats enable
stats hide-version
stats realm Haproxy\ Statistics
stats uri /
stats auth haproxy:haproxy
stats refresh 10s

服务状态

service haproxy status

systemd[1]: Started HAProxy Load Balancer.
haproxy-systemd-wrapper[2358]: haproxy-systemd-wrapper: executing /usr/sbin/haproxy -f /etc/haproxy/haproxy.cf...id -Ds
haproxy-systemd-wrapper[2358]: [ALERT] 012/095413 (2359) : Starting proxy stats: cannot bind socket [0.0.0.0:8888]
haproxy-systemd-wrapper[2358]: haproxy-systemd-wrapper: exit, haproxy RC=256

/etc/sysctl.conf
有人说这可能是虚拟IP问题,所以我按照说明添加下面的设置,然后运行 ​​sysctl -p

net.ipv4.ip_nonlocal_bind=1

网络配置

ip addr show

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
link/ether 00:15:5d:0a:09:05 brd ff:ff:ff:ff:ff:ff
inet 192.168.4.117/24 brd 192.168.4.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::215:5dff:fe0a:905/64 scope link
valid_lft forever preferred_lft forever

监听端口

ss --listening

[root@localhost ~]# ss --listening
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
nl UNCONN 0 0 rtnl:NetworkManager/792 *
nl UNCONN 0 0 rtnl:kernel *
nl UNCONN 0 0 rtnl:avahi-daemon/671 *
nl UNCONN 0 0 rtnl:4195096 *
nl UNCONN 4352 0 tcpdiag:ss/3772 *
nl UNCONN 768 0 tcpdiag:kernel *
nl UNCONN 0 0 6:kernel *
nl UNCONN 0 0 7:kernel *
nl UNCONN 0 0 7:systemd/1 *
nl UNCONN 0 0 7:dbus-daemon/680 *
nl UNCONN 0 0 9:auditd/640 *
nl UNCONN 0 0 9:kernel *
nl UNCONN 0 0 9:systemd/1 *
nl UNCONN 0 0 10:kernel *
nl UNCONN 0 0 11:kernel *
nl UNCONN 0 0 15:iprdump/723 *
nl UNCONN 0 0 15:systemd/1 *
nl UNCONN 0 0 15:-4124 *
nl UNCONN 0 0 15:systemd-logind/679 *
nl UNCONN 0 0 15:NetworkManager/792 *
nl UNCONN 0 0 15:iprinit/713 *
nl UNCONN 0 0 15:-4107 *
nl UNCONN 0 0 15:-4125 *
nl UNCONN 0 0 15:-4119 *
nl UNCONN 0 0 15:iprupdate/710 *
nl UNCONN 0 0 15:-4118 *
nl UNCONN 0 0 15:kernel *
nl UNCONN 0 0 15:-4117 *
nl UNCONN 0 0 15:tuned/676 *
nl UNCONN 0 0 16:kernel *
nl UNCONN 0 0 18:kernel *
u_str LISTEN 0 128 /run/lvm/lvmetad.socket 11542 * 0
u_str LISTEN 0 128 /run/systemd/journal/stdout 6697 * 0
u_dgr UNCONN 0 0 /run/systemd/journal/socket 6700 * 0
u_dgr UNCONN 0 0 /dev/log 6702 * 0
u_dgr UNCONN 0 0 /run/systemd/shutdownd 11321 * 0
u_dgr LISTEN 0 128 /run/udev/control 11338 * 0
u_str LISTEN 0 100 public/flush 18726 * 0
u_str LISTEN 0 100 public/showq 18741 * 0
u_str LISTEN 0 30 /var/run/NetworkManager/private-dhcp 17003 * 0
u_dgr UNCONN 0 0 @/org/freedesktop/systemd1/notify 11259 * 0
u_str LISTEN 0 100 private/tlsmgr 18708 * 0
u_str LISTEN 0 30 /var/run/NetworkManager/private 16518 * 0
u_str LISTEN 0 128 /var/run/avahi-daemon/socket 13986 * 0
u_str LISTEN 0 128 /var/run/dbus/system_bus_socket 13998 * 0
u_str LISTEN 0 100 private/rewrite 18711 * 0
u_str LISTEN 0 100 private/bounce 18714 * 0
u_str LISTEN 0 100 private/defer 18717 * 0
u_str LISTEN 0 100 private/trace 18720 * 0
u_str LISTEN 0 100 private/verify 18723 * 0
u_str LISTEN 0 100 private/proxymap 18729 * 0
u_str LISTEN 0 100 private/proxywrite 18732 * 0
u_str LISTEN 0 100 private/smtp 18735 * 0
u_str LISTEN 0 100 private/relay 18738 * 0
u_str LISTEN 0 100 private/error 18744 * 0
u_str LISTEN 0 100 private/retry 18747 * 0
u_str LISTEN 0 100 private/discard 18750 * 0
u_str LISTEN 0 100 private/local 18753 * 0
u_str LISTEN 0 100 private/virtual 18756 * 0
u_str LISTEN 0 100 private/lmtp 18759 * 0
u_str LISTEN 0 100 private/anvil 18762 * 0
u_str LISTEN 0 100 private/scache 18765 * 0
u_str LISTEN 0 100 public/pickup 18697 * 0
u_str LISTEN 0 100 public/cleanup 18701 * 0
u_str LISTEN 0 100 public/qmgr 18704 * 0
u_str LISTEN 0 30 /run/systemd/private 11261 * 0
u_dgr UNCONN 0 0 * 14733 * 6700
u_dgr UNCONN 0 0 * 15011 * 6702
u_dgr UNCONN 0 0 * 12659 * 12658
u_dgr UNCONN 0 0 * 18818 * 6702
u_dgr UNCONN 0 0 * 15244 * 6702
u_dgr UNCONN 0 0 * 16991 * 6702
u_dgr UNCONN 0 0 * 12644 * 6700
u_dgr UNCONN 0 0 * 12658 * 12659
u_dgr UNCONN 0 0 * 19513 * 6700
u_dgr UNCONN 0 0 * 29994 * 6702
u_dgr UNCONN 0 0 * 13899 * 6702
u_dgr UNCONN 0 0 * 16528 * 6702
u_dgr UNCONN 0 0 * 30457 * 6702
u_dgr UNCONN 0 0 * 18632 * 6702
u_dgr UNCONN 0 0 * 16504 * 6702
raw UNCONN 0 0 :::ipv6-icmp :::*
tcp UNCONN 0 0 *:ipproto-5353 *:*
tcp UNCONN 0 0 *:ipproto-50900 *:*
tcp LISTEN 0 100 127.0.0.1:smtp *:*
tcp LISTEN 0 128 *:ssh *:*
tcp LISTEN 0 100 ::1:smtp :::*
tcp LISTEN 0 128 :::ssh :::*

最佳答案

首先谢谢你们。
我已经通过以下命令解决了这个问题。
setsebool -P haproxy_connect_any=1

这对我有用!

关于sockets - HAProxy 无法绑定(bind)套接字 [0.0.0.0 :8888],我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34793885/

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