g*****e
发帖数: 87 | 1 Lots of firewalls blocks ICMP which means ping might not work at all.
Try to telenet destIPaddress port to see if you can open the port or not.
Install wireshark/ethereal or tcpdump to see if you can start the TCP three
way handshaking process or not. You might be able to see if your nearest
gateway stop you or destination rejects you or something in between. |
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j*******d
发帖数: 8834 | 2 doh ! ping is ICMP and connect(2) is @ TCP layer......
did connect(2) return right away or it took a couple of seconds? |
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z****e
发帖数: 54598 | 3 If your instance (host A) initiates traffic to host B and uses a protocol
other than TCP, UDP, or ICMP, your instance’s firewall only tracks the IP
address and protocol number for the purpose of allowing response traffic
from host B. |
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d****y
发帖数: 2180 | 5 【 以下文字转载自 shopping 讨论区 】
【 原文由 daisyy 所发表 】
从装上防火墙后,就发现有个来自英国的
IP老对我进行骚扰,天天给我的机器发数据包
明显是有目的的,因为他从没对我另一台机器发垃圾
其IP是 212.15.64.41 ,来自
orinoco.portland.co.uk [212.15.64.41]
总是发ICMP数据包,类型 8,代码 0
大侠们说说看是怎么回事,该怎么办 |
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b*********a
发帖数: 28 | 6 如果是ping你的IP地址就会得到类型8代码0的ICMP数据包 |
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m*****e
发帖数: 4193 | 7 Probably the only thing he can do is TCP scan, which is the easiest job
of nmap.
UDP scan is entirely different (and much tricker). You need the ability
to receive ICMP packets, which requires root. I've written such an utility
myself to monitor the health of the DHCP server in my department. |
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t*****f
发帖数: 25 | 8 FWIN,2001/01/04,19:36:12 -5:00 GMT,166.90.30.50:0,24.28.207.103:0,ICMP
FWIN,2001/01/04,19:52:48 -5:00 GMT,165.121.117.20:2036,24.28.207.103:31337,UDP
FWIN,2001/01/04,20:05:30 -5:00 GMT,148.247.40.20:1744,24.28.207.103:21,TCP
FWIN,2001/01/04,21:15:48 -5:00 GMT,24.28.207.68:1084,24.28.207.103:5632,UDP
... ... ...
著是老夫ZoneAlarm的LOGFILE里的东东，
是有人在窥探偶的计算机吗？这么频繁？
好象好几个地址都是从偶附近过来的，MMD。
究竟是怎么回事？？？ |
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i**a
发帖数: 13 | 9 What do you mean? are you talking about ICMP ping program or Finger? |
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l***s
发帖数: 126 | 10 唉，给IP炸弹炸了呗。人给你QQ发信息，就可以抓到你的IP，如果你是win9x的OS，
而且没装孵防火墙，随便往你port 100或135发几个ICMP包就能炸瘫你了。
随便去down个防火墙比如天网，norton personal装上就没事了。hoho
个
于 |
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b****n
发帖数: 35 | 11 Due to the specific requirement of my project, my computer needs to directly c
onnect to the Internet, i.e. bypass the firewall of our company. I enable th
e firewall of my WinXP, but more often I work under Linux.
1) I wonder what the security precaution I should take.
2) How possible is my computer under attack? R there any ppl who r so bored to
spend time scanning my computer?
3) How is the firewall in RedHat? What kind of rules should I set?
4) I realize many router blocked ICMP, but I need |
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n*********1
发帖数: 31 | 12 1. 系统优化与安全设置
(1)个人电脑安全及性能优化
(2)如何使您的电脑在上网冲浪过程中更加安全
(3)注册表也减肥
2.QQ安全
(1)QQ密码防盗的简单技巧
(2)终结修改QQ密码保护
(3)设置QQ代理教程
(4)反击盗号者邮箱
3.系统安全工具使用
(1)几款实用计算机安全软件使用
(2)自启动项目查看分析动画
(3)磁盘，文件和注册表监视工具的使用。
(4)查杀莫名程序录象以及所使用的工具
(5)我用终截者防黑
(6)配置SNMP代理
(7)让下载者变白痴
4.反病毒技术
(1)手动清除rose病毒
(2)利用SREng调整修复你系统
(3)通用病毒清除方法-sc.exe,netsvc.exe的使用
(4)通用病毒清除方法-killbox,IceSword,tips:如何反注册dll文件
黑客防线工具黑客特训班
1.黑客专用虚拟机系统相关
(1)Vmware下Windows的安装
(2)Vmware下Windows的安装(2)
(3)构造最适合黑客演练的虚拟机系统
2.黑客扫描技术相关
(1)Domain3.5之简单入侵(菜鸟篇)
(2)狂扫QQ信封
(3)X-SCAN使... 阅读全帖 |
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w*****n
发帖数: 94 | 13 Here is an excerpt from linux raw(7):
Raw sockets may tap all IP protocols in Linux, even prot
cols like ICMP or TCP which have a protocol module in the
kernel. In this case the packets are passed to both the
kernel module and the raw socket(s). This should not be
relied upon in portable programs, many other BSD socket
implementation have limitations here.
There are detailed explanations in UNP. |
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z***e
发帖数: 5393 | 14 为什么？
你检查设置，remote desktop是enable了的？
端口呢？
还有可以把那个fire and printer sharing打开，允许ICMP，你看看能不能ping你的机
器，确定是不是网络问题。 |
|
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U*F
发帖数: 44 | 16 【 以下文字转载自 Biology 讨论区 】
发信人: USF (USF), 信区: Biology
标 题: 为啥好多牛校毕业的也不好找工作？
发信站: BBS 未名空间站 (Thu Dec 27 10:09:05 2012, 美东)
恕本人不太了解行情。我感觉能在MIT, YALE这些学校拿到PHD，应该找工作小CASE了吧
。但不知道为什么事实不是这样？
比如刚才我随便在网上瞎转，也是LINK套LINK看过去的，本人并不认识这些人。比如这
个人在MIT拿的博士，然后又在MIT做了好多年薄厚，现在回了浙大。我瞎猜是可能在美
国找职位不顺吧：
http://physics.zju.edu.cn/pw/icmp/chinese/teacher/teachers/jlwu
再比如这个是YALE的博士，在好多地方做了薄厚，好像现在都不知道在哪里了：
http://www.tulane.edu/~ywu2/
感觉他们在牛校，应该老板大小也算牛人吧，文章俺也不太懂，估计也不错吧，怎么结
果似乎不是很理想？ |
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U*F
发帖数: 44 | 17 【 以下文字转载自 Biology 讨论区 】
发信人: USF (USF), 信区: Biology
标 题: 为啥好多牛校毕业的也不好找工作？
发信站: BBS 未名空间站 (Thu Dec 27 10:09:05 2012, 美东)
恕本人不太了解行情。我感觉能在MIT, YALE这些学校拿到PHD，应该找工作小CASE了吧
。但不知道为什么事实不是这样？
比如刚才我随便在网上瞎转，也是LINK套LINK看过去的，本人并不认识这些人。比如这
个人在MIT拿的博士，然后又在MIT做了好多年薄厚，现在回了浙大。我瞎猜是可能在美
国找职位不顺吧：
http://physics.zju.edu.cn/pw/icmp/chinese/teacher/teachers/jlwu
再比如这个是YALE的博士，在好多地方做了薄厚，好像现在都不知道在哪里了：
http://www.tulane.edu/~ywu2/
感觉他们在牛校，应该老板大小也算牛人吧，文章俺也不太懂，估计也不错吧，怎么结
果似乎不是很理想？ |
|
B*********h
发帖数: 800 | 18 ☆─────────────────────────────────────☆
kxwang (瞬间飘过的风) 于 (Mon Mar 12 18:44:40 2007) 提到:
google不出来什么相关的信息，有谁了解么？
☆─────────────────────────────────────☆
icmp (Lee) 于 (Thu Apr 5 13:15:19 2007) 提到:
co-ask...
☆─────────────────────────────────────☆
quantsquants (quantsquants) 于 (Thu Apr 5 13:22:25 2007) 提到:
sounds like a company started by nuclear physicists. two quarks interact via
gluons, hehe...
☆─────────────────────────────────────☆
siam (siam) 于 (Thu Apr 5 13:49:49 2007 |
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B*********h
发帖数: 800 | 19 ☆─────────────────────────────────────☆
icmp (Lee) 于 (Wed May 16 14:28:19 2007) 提到:
got an interview scheduled with them. Anybody knows how's this company? Many
thanks!
☆─────────────────────────────────────☆
lhict (至少还有我) 于 (Wed May 16 19:56:01 2007) 提到:
It is a good software company developing algorithmic trading systems for
banks. Most of them are Indian engineers, with a few Chinese engineers.
The working environment is good. but the pay is a little low in financial IT
.
I believe |
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p*******m
发帖数: 20761 | 20 Asuswrt-Merlin Changelog
========================
380.64 (16-Dec-2016)
- NEW: New firmware availability notification. The router will
notify you if a new firmware is available, and will also
let you view the changelog before sending you to the
download page (the update process remains manual).
Note that the automated check will only report new
final releases. The Check button on the Firmware Upgrade
will immediately check for final... 阅读全帖 |
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w*******t
发帖数: 960 | 21 enable后可以连接，注册成功
但是不能访问服务器上的samba文件夹，其他的服务也不能访问，内网的ip都可以ping
用的PPTP，不知道换L2TP会不会有帮助
下面是网上找的sprint block端口的list
===========================================================
Here is a list of ports that Sprint block for inbound traffic.
TransPort routers use port 80 for web GUI management
TransPort routers use port 4000 for serial port access over TCP
• Sprint blocks certain known IP ports to keep unauthorized
traffic from entering the CDN
> 80 tcp http (web servers)
> icmp echo ... 阅读全帖 |
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w*******y
发帖数: 60932 | 22 Lego.com has put a few of their sales and deals on super clearance.
Link:
http://shop.lego.com/SalesAndDeals/Default.aspx?icmp=SHHomeT2_J
Biggest discounts / best sets are:
Wind turbine transport, #7447 / 444 pieces
was $60, now $18.00
Steam roller, #7446 / 208 pc
Was $30, now $9.00
Some of the Ben 10 and Bionicles are similar discounts. A few of the
Bionicles were only $1.98, but one is already sold out.
Standard shipping of $4.95 + applies.
|
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w*******y
发帖数: 60932 | 23 Price just dropped to $59.99 on this decent wireless network camera. Do
recall it was a sought after item during BF, but currently the lowest ever
for amazon according to urlhasbeenblocked
D-Link DCS-930L mydlink-Enabled Wireless-N Network Camera
linky: Link:
http://www.amazon.com/gp/product/B00452V66G/ref=oh_o00_s00_i00_
Specifications
Video features: Adjustable image size and quality; time stamp and text
overlay; flip and Mirror
Operating system: Microsoft Windows 7, Windows Vista, Windows XP ... 阅读全帖 |
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w*******y
发帖数: 60932 | 24 Link:
http://lastcall.dailysteals.com/
Condition: Factory Recertified
Packaging: Box
Warranty: 90 Day
Brand: D-Link
Model: DSM-380
Product Features:
Boxee is the best way to enjoy entertainment from the Internet or a
computer on a TV. Their free, open source, downloadable software for Mac,
Linux and Windows brings all your entertainment into one place - whether it'
s from the Internet or from your hard drive or home network. Plus, they
overlay everything with a heaping helping of social by letti... 阅读全帖 |
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w*******y
发帖数: 60932 | 25 Link:
http://itunes.apple.com/us/app/scany-network-port-scanner/id328
Link:
http://happymagenta.com
*** FEATURES ***
- Scan both LAN and the Internet
- Scan any IP address or network range
- Bonjour hostnames lookup
- Windows hostnames lookup (NetBIOS, Samba)
- Device names lookup (UPnP, SSDP, DLNA)
- Country of origin detection of the network owner
- Network range and AS number lookup
- MAC address and hardware vendor lookup
- Wake on LAN or Wi-Fi (by MAC address)
- Wake over the Internet (usin... 阅读全帖 |
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