阿里云服务器默认端口是什么，阿里云服务器默认端口详解，了解默认端口及其设置方法

阿里云服务器默认端口为22（SSH）和80（HTTP），默认端口详解包括端口功能、安全设置及修改方法，了解默认端口设置，有助于确保服务器安全与高效运行。

随着互联网的快速发展,越来越多的企业和个人选择使用阿里云服务器来搭建网站、应用等，阿里云服务器作为国内领先的云服务提供商，拥有丰富的产品线和优秀的性能，在搭建网站或应用时，我们需要了解阿里云服务器的默认端口，以便正确配置和设置，本文将详细介绍阿里云服务器的默认端口，并讲解如何根据需求进行端口设置。

阿里云服务器默认端口

1. 80端口：HTTP协议默认端口，用于传输网页内容，大多数网站和应用程序都使用80端口进行访问。

   

   图片来源于网络，如有侵权联系删除

2. 443端口：HTTPS协议默认端口，用于加密传输网页内容，提高安全性，随着网络安全意识的提高，越来越多的网站和应用开始使用443端口。

3. 22端口：SSH协议默认端口，用于远程登录服务器，管理员可以通过SSH客户端连接到服务器，进行远程操作。

4. 21端口：FTP协议默认端口，用于文件传输，用户可以通过FTP客户端连接到服务器，上传和下载文件。

5. 3306端口：MySQL数据库默认端口，用于数据库的访问和管理。

6. 1433端口：SQL Server数据库默认端口，用于数据库的访问和管理。

7. 25端口：SMTP协议默认端口，用于发送电子邮件。

8. 110端口：POP3协议默认端口，用于接收电子邮件。

   

   图片来源于网络，如有侵权联系删除

9. 993端口：IMAP协议默认端口，用于接收电子邮件。

10. 8080端口：Tomcat服务器默认端口，用于Java Web应用程序的访问。

端口设置方法

修改系统配置文件

对于Linux系统,可以通过修改 /etc/sysctl.conf 文件来设置默认端口，将80端口修改为8080端口，可在该文件中添加以下内容：

net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_mtu_probes = 10
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_keepalive_time = 1800
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_len = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 10000 65535
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_orphan_reclaim = 60
net.ipv4.tcp_mem = 9216 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 167772