我正在尝试从外部服务器获取 Curl 响应，但是我注意到我既无法 PING 相关服务器也无法连接到它。
我尝试禁用 iptables 防火墙，但没有成功。我的服务器运行在安装了 DD-wrt 固件的 Cisco Linksys WRTN310N 路由器后面。我已经在其中禁用了防火墙。
这是我的网络设置： 配置文件
eth0 Link encap:Ethernet HWaddr 00:26:b9:76:73:6b
inet addr:192.168.1.120 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::226:b9ff:fe76:736b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:49713 errors:0 dropped:0 overruns:0 frame:0
TX packets:30987 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:52829022 (52.8 MB) TX bytes:5438223 (5.4 MB)
Interrupt:16
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:341 errors:0 dropped:0 overruns:0 frame:0
TX packets:341 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:27604 (27.6 KB) TX bytes:27604 (27.6 KB)
/etc/resolv.conf
nameserver 192.168.1.1
/etc/nsswitch.com
passwd: compat
group: compat
shadow: compat
hosts: files dns
networks: files
protocols: db files
services: db files
ethers: db files
rpc: db files
netgroup: nis
/etc/主机.conf
order hosts,bind
multi on
/etc/hosts
127.0.0.1 localhost
127.0.0.1 callcenter
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
/etc/网络/接口
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.1.120
netmask 255.255.255.0
network 192.168.1.1
broadcast 192.168.1.255
gateway 192.168.1.1
我尝试连接的 URL 是 https://www.veripayment.com/integration/index.php 当我在终端上 ping 它时，我得到了以下结果
daniel@callcenter:~$ ping https://www.veripayment.com/integration/index.php
ping: unknown host https://www.veripayment.com/integration/index.php
daniel@callcenter:~$ ping www.veripayment.com
PING www.veripayment.com (69.172.200.5) 56(84) bytes of data.
--- www.veripayment.com ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1007ms
codeigniter 中的 PHP 函数
public function authorizePayment(){
//---------------------------------------------------
// Authorize a payment
//---------------------------------------------------
// Get variables from POST array
$post_str = "action=payment&business=" .urlencode($this->input->post('business'))
."&vericode=" .urlencode($this->input->post('vericode'))
."&item_name=" .urlencode($this->input->post('item_name'))
."&item_code=" .urlencode($this->input->post('item_code'))
."&quantity=" .urlencode($this->input->post('quantity'))
."&amount=" .urlencode($this->input->post('amount'))
."&cc_type=" .urlencode($this->input->post('cc_type'))
."&cc_number=" .urlencode($this->input->post('cc_number'))
."&cc_expdate=" .urlencode($this->input->post('cc_expdate_year')).urlencode($this->input->post('cc_expdate_month'))
."&cc_security_code=" .urlencode($this->input->post('cc_security_code'))
."&shipment=" .urlencode($this->input->post('shipment'))
."&first_name=" .urlencode($this->input->post('first_name'))
."&last_name=" .urlencode($this->input->post('last_name'))
."&address=" .urlencode($this->input->post('address'))
."&city=" .urlencode($this->input->post('city'))
."&state_or_province=" .urlencode($this->input->post('state_or_province'))
."&zip_or_postal_code=" .urlencode($this->input->post('zip_or_postal_code'))
."&country=" .urlencode($this->input->post('country'))
."&shipping_address=" .urlencode($this->input->post('shipping_address'))
."&shipping_city=" .urlencode($this->input->post('shipping_city'))
."&shipping_state_or_province=" .urlencode($this->input->post('shipping_state_or_province'))
."&shipping_zip_or_postal_code=".urlencode($this->input->post('shipping_zip_or_postal_code'))
."&shipping_country=" .urlencode($this->input->post('shipping_country'))
."&phone=" .urlencode($this->input->post('phone'))
."&email=" .urlencode($this->input->post('email'))
."&ip_address=" .urlencode($this->input->post('ip_address'))
."&website_unique_id=" .urlencode($this->input->post('website_unique_id'));
// Send URL string via CURL
$backendUrl = "https://www.veripayment.com/integration/index.php";
$this->curl->create($backendUrl);
$this->curl->post($post_str);
$return = $this->curl->execute();
$result = array();
// Explode array where blanks are found
$resparray = explode(' ', $return);
if ($resparray)
{
// save results into an array
foreach ($resparray as $resp) {
$keyvalue = explode('=', $resp);
if(isset($keyvalue[1])){
$result[$keyvalue[0]] = str_replace('"', '', $keyvalue[1]);
}
}
}
return $result;
}
这将获得一个空的结果数组。但是，此函数在之前托管该脚本的服务器中运行良好。未进行任何修改
提前致谢
答案1
www.veripayment.com 上的服务器（或其前面的防火墙）配置为丢弃 ping 请求。
C:\Users\RGB> ping www.veripayment.com
Pinging veripayment.com [69.172.200.5] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 69.172.200.5:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
它响应 HTTP 请求：
C:\Users\RGB> wget http://www.veripayment.com
--22:34:37-- http://www.veripayment.com/
=> `index.html.1'
Resolving www.veripayment.com... done.
Connecting to www.veripayment.com[69.172.200.5]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
[ <=> ] 922 900.39K/s
22:34:37 (900.39 KB/s) - `index.html.1' saved [922]
C:\Users\RGB>
对于出站 HTTP 请求，您不需要禁用路由器中的任何防火墙。
更新：
您正在使用 PHP 中的 lib_curl，但是我无法识别它。
curl 的其他 PHP 示例使用类似curl_init()和的函数curl_exec()
我怀疑您需要转储您正在发送的内容（发布数据），比较 PHP 版本并修改代码以检查错误响应。
我不知道您如何使用您正在使用的库来做到这一点，使用其他 PHP curl 库您可以执行以下操作：
if (curl_errno($ch)) {
print curl_error($ch);
} else {
curl_close($ch);
}
我会用一些等效的东西来更新 PHP 脚本。
我猜测你的 PHP 版本和环境与旧服务器上的不一样。