我不仅希望为目标服务器( TCP )设置一个端口,而且还要为Python客户端应用程序(访问Python或其他TCP服务器)生成的TCP请求的传出信号设置端口。以下是我所拥有的:
import socket
s = socket.socket()
host = '127.0.0.1' # IP address of the server
port = 30000 # Port of the server
s.connect((host, port))
print("Connected")
while(1):
dataIn = input('S
我尝试了以下规则来允许FTP:
# The following two rules allow the inbound FTP connection
iptables -A INPUT -p tcp --sport 21 -m state --state ESTABLISHED -j ACCEPT
iptables -A OUTPUT -p tcp --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT
# The next 2 lines allow active ftp connections
iptables -A INPUT -p
一直在查看我的iptables日志,有数百个不同的IP试图访问端口45702,谷歌似乎不知道多少。
他们总是以每一个ip块的形式到达。
Jun 3 00:59:49 76.108.181.238 32253 in 130.88.149.86 45702 UDP
Jun 3 00:59:42 76.108.181.238 32253 in 130.88.149.86 45702 UDP
Jun 3 00:59:39 76.108.181.238 32253 in 130.88.149.86 45702 UDP
Jun 3 00:59:38
服务器程序
local socket = require("socket")
local server = socket.try(socket.bind("*", 1234))
local ip, port = server:getsockname()
while 1 do
local client = server:accept()
client:settimeout(10)
local line, err = client:receive()
print (line)
print("Enter input:
这是来自startup.log (tomcat)的跟踪
java.io.EOFException
at java.io.DataInputStream.readInt(DataInputStream.java:392)
at org.apache.activemq.openwire.OpenWireFormat.unmarshal(OpenWireFormat.java:267)
at org.apache.activemq.transport.tcp.TcpTransport.readCommand(TcpTransport.java:240)
我正在尝试使用这里给出的例子在docker for windows (工具箱)上运行一个最小的融合社区示例:
但似乎所有组件都启动了,只有ksql-datagen失败了,其中一些组件不工作,
$ docker-compose.exe ps
The system cannot find the path specified.
Name Command State Ports
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我正在做一个项目,需要从TCP头中打印出TCP序列号和TCP ack号。以下是我所做的
ip = (struct iphdr*) buffer; //buffer is used to store the packet that I received
tcp = (struct tcphdr*) (buffer+(4*ip->ihl));
printf ("TCP sequence number = %d\n",ntohl(tcp->seq));
printf ("TCP ack number = %d\n",ntohl(tcp->ack_s
我有一个现有的IPtables脚本运行在一个灯堆叠的VPS,我需要帮助允许连接,以便我可以上传和下载文件到我的网络服务器。
我已经将vsftpd安装到ubuntu,并将其配置为自主用户访问,但我认为我的防火墙拒绝了连接请求。
我已经尝试了load探测ip_conntrack_ftp来加载模块。但我还是不能通过FTP连接
*filter
# Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0
-A INPUT -i lo -j ACCEPT
-A INPUT -i !