局域网时断时续问题

局域网时断时续问题,第1张

(网吧、商务)客户反映上网频繁掉线,经过查证,确认目前引起用户掉线的原因是木马病毒,名字叫传奇杀手等。传奇杀手是一款对局域网进行ARP地址欺骗的病毒软件,通过虚拟局域网网关地址,来欺骗其他客户机,以收集局域网中游戏登陆信息并进行分析从而得到用户信息的破坏性软件。
病毒原理
首先,将本机MAC通过arp欺骗广播至局域网,使局域网中的工作站误认为本机是网关。该流程会造成局域网与internet连接中断,使游戏与服务器断开链接,待用户重新启动游戏并进行帐号登陆时,帐户信息并不会直接通过网关上传到代理服务器,而是上传到正在进行arp欺骗的传奇杀手软件中,通过传奇杀手自身的解密手段,会获得该帐户的真实用户名及密码,从而达到窃取玩家帐号的目的
发作状况
当局域网内某台主机运行ARP欺骗的木马程序时,会欺骗局域网内所有主机和路由器,让所有上网的流量必须经过病毒主机。其他用户原来直接通过路由器上网现在转由通过病毒主机上网,切换的时候用户会断一次线。
切换到病毒主机上网后,如果用户已经登陆了传奇服务器,那么病毒主机就会经常伪造断线的假像,那么用户就得重新登录传奇服务器,这样病毒主机就可以盗号了。
由于ARP欺骗的木马程序发作的时候会发出大量的数据包导致局域网通讯拥塞以及其自身处理能力的限制,用户会感觉上网速度越来越慢。当ARP欺骗的木马程序停止运行时,用户会恢复从路由器上网,切换过程中用户会再断一次线。
故障排除
在局域网中受影响的客户机上执行arp -a,在回溃信息中会发现重复mac地址该mac地址对应的即为使用传奇杀手的计算机而重复的地址就是被arp欺骗后的网关地址此时可根据mac地址前的ip地址查找该计算机并采取有效手段关闭程序如果在运行该程序前,该机IP地址已经被更改,则需通过对应的MAC列表查找该物理网卡所存在的计算机(由此可见,备份一张详细的局域网mac地址列表有多重要)
在局域网内查找病毒主机
在上面我们已经知道了使用ARP欺骗木马的主机的MAC地址,那么我们就可以使用NBTSCAN工具来快速查找它。
NBTSCAN可以取到PC的真实IP地址和MAC地址,如果有”传奇木马”在做怪,可以找到装有木马的PC的IP/和MAC地址。
命令:“nbtscan -r 192168160/24”(搜索整个192168160/24网段, 即
192168161-19216816254);或“nbtscan 1921681625-137”搜索1921681625-137 网段,即1921681625-19216816137。输出结果第一列是IP地址,最后一列是MAC地址。
NBTSCAN的使用范例:
假设查找一台MAC地址为“000d870d585f”的病毒主机。
1)将压缩包中的nbtscanexe 和cygwin1dll解压缩放到c:下。
2)在Windows开始—运行—打开,输入cmd(windows98输入“command”),在出现的DOS窗口中输入:C:\nbtscan -r 192168161/24(这里需要根据用户实际网段输入),回车。
C:Documents and SettingsALAN>C:\nbtscan -r 192168161/24
Warning: -r option not supported under Windows Running without it
Doing NBT name scan for addresses from 192168161/24
IP address NetBIOS Name Server User MAC address
------------------------------------------------------------------------------
192168160 Sendto failed: Cannot assign requested address
1921681650 SERVER 00-e0-4c-4d-96-c6
19216816111 LLF ADMINISTRATOR 00-22-55-66-77-88
19216816121 UTT-HIPER 00-0d-87-26-7d-78
19216816175 JC 00-07-95-e0-7c-d7
19216816223 test123 test123 00-0d-87-0d-58-5f
3)通过查询IP--MAC对应表,查出“000d870d585f”的病毒主机的IP地址为“19216816223”。
在此下载NBTSCAN软件
>

介词短语就是 to the person作后置定语修饰connection。

因为是短语,所以放在被修饰词的后面。

1 句子的翻译:

他们觉得自己与筹款人有一种联系,而不一定与科学有关  。

2 句子成分分析:

they,主句主语;

feel,主句谓语;

a connection,名词作主句的表语

to the person ,介宾短语作后置定语;

who,关系代词引导定语从句,作定语从句的主语;

is doing ,定语从句的谓语;

the fundraising,定语从句的宾语

—not necessarily to the science,副词短语作状语。

3 重点短语:

a connection to,与的连接;与的联系。

例句:

Open a connection to the server

打开到服务器的连接。

Add a connection to a DB2 database

添加db2数据库连接。

Define a connection to each repository

定义到每个库的连接。

We all have a connection to objects

所有人都与事物有联系。

这个问题有点大。从字面意思看,make是“做”,take是“拿”。可是放在不同的语境和连接里,又有不同的意思。比方说,make difference: 改变,带来改变。take a shower,洗澡,冲澡。make 和 take 的原意都改变了。
当然,如果你要把它变成“头脑急转弯”的问题也可以,那么,答案可以是:它们戴的帽子不一样。
have
用法助词vaux1 (加过去分词,构成完成时态)已经;曾经
have/has done现在完成时 had done过去完成时will have done将来完成时would have done过去将来完成时have/has been doing现在完成进行 had been doing过去完成进行

EG:

They haven't finished the job yet

他们尚未完成该项工作。

2 (用于虚拟语气,表示与过去事实相反的假设)(假如那时)的话
She might have come if she hadn't been so busy

当时若不是那么忙,她是可能来的。
及物动词vt1 有,拥有[W]
This coat has no pockets

这件衣服没有口袋。

注意: have “有,拥有”,其疑问和否定形式有两种,如:

Do you have a brother No, I don"t have a brother

Have you a brother No, I haven"t a brother

2 怀有,持有[W]
Many people have doubts about the new project

许多人对这项新工程有怀疑。

3 体验;经验;患[W]
We had a wonderful time on the beach

我们在海滩上玩得好极了。

4 拿;得到,取得[W]
We gave him a present, but he wouldn't have it

我们给他一件礼物,但他不肯接受。

5 进行,从事(某事)
The manager is having a meeting

经理正在开会。

6 吃;喝;吸(烟)
They had their lunch in a cafeteria

他们在一家自助餐厅吃了午饭。

Have a cup of coffee, please

请喝杯咖啡。

7 邀请(某人),招待[O]
We had some guests for dinner last night

我们昨晚请了几位客人吃饭。

8 (用于否定句中)容忍;允许[O4]
I won't have anyone smoking in here

我不容许任何人在这里抽烟。

9 生得,生育
My wife is going to have a baby

我妻子快要生孩子了。

10 使,让;招致[O7][O8]
Pa's had his hands burned

爸爸的手给烫伤了。

I've had the stove lighted

我已经让人把炉子点着了。

11 要;叫;使[O3][O4]
I'll be proud to have you read it

你肯读它我会感到骄傲的。

12 必须,不得不[+to-v]
I have to go right now

我马上得走。

13 俚哄骗,欺骗[H]
They were had in that deal

他们在那笔生意上受了骗。

14 明白,懂得[W]
I guess I have your ideas

我想我明白你的意思。

15 俚与(女人)性交
名词n1 富人;富国[the P]
The gap between the haves and the have-nots is widening

贫富之间的差距在扩大

编辑本段示例1have sb do sth
(1) 叫(请,使)某人做某事。如:

I’ll have her post the letter 我要叫她去寄信。

He had his son clean the car 他叫他的儿子擦车。

(2) 容忍或允许某人做某事(用于否定句,尤与 won’t, can’t连用)。如:
I won’t have you tell me what to do 我不能让你对我做的事指手划脚。

2 have sb (sth) doing sth
(1) 使(让)某人(某事物)一直做在做某事。如:
He had the light burning all night 他让灯亮了一整夜。

Within minutes he had the whole audience laughing and clapping 没出几分钟他就让全体听众笑起来,鼓起掌来。

(2) 容忍或允许某人做某事(用于否定句,尤与 won’t, can’t连用)。如:
He won’t have boys arriving late 他不允许孩子们迟到。

I won’t have you smoking at your age 我不能让你在这个年纪就抽烟。

(3) 说服或命令某人做某事。如:
He had me doing all kinds of jobs for her 他叫我为她做各种事情。

3 have sth done
(1) 请(让)别人做某事。如:
We had the machine repaired 我们请人修理了机器。

Why don’t you have your hair cut 你为什么不理发

注:有时指无意志的行为。如:

He had his salary raised 他加薪了。

(2) 经历或遭遇某情况。如:
He had his finger cut 他的手指弄伤了。

I had my watch stolen yesterday 我的表昨天被人偷去了。

(3) 完成或解决某事。如:
He had 1000 yuan saved last year 他去年存了1000元。

I’ve had all my mistakes corrected 我已把所有的错误都改正过来了。

(4) 容忍或允许做某事(用于否定句,尤与 won’t, can’t 等连用)。如:
We won’t have anything said against the Party 我们不允许有人这样攻击党。

4 have sth to do 有某事要做。如:
I have a lot of work to do 我有许多工作要做。

She has plenty of clothes to wear 她有足够的衣服穿。

5 have on
(1) 穿着,戴着。如:
He had nothing on except a hat 他身上一丝不挂,只是戴了顶帽子。

(2) 有安排,有计划,有活动。如:
I have nothing on for tonight 我今晚没什么事。

(3) 戏弄,欺骗。如:
You won You’re not having me on 你赢了 没骗我吧

编辑本段趣味短语have to不得不(强调“客观”,即来自外界要求)

have fun 玩得开心

have in mind 考虑

have got 拥有

have on 穿着 戴着

have a look 看一看

have no idea 一点也没听说过 一点也不知道

have access to 可以到达

have a good time 玩得痛快

have some food 吃点东西

have a rest 休息

have a seat 就坐

have tea 喝茶

have a drink 喝(某东西)

have a swim 游泳

have a try 尝试

have a talk 谈话

have a walk 散步
get
基本释义多用于表示感情、气候、环境的变化 后接形容词原级或比较级。

vt

得到, 收到

I've got your telegram

我已经收到了你的电报。

具有

使得

Please go and get him

请去把他叫来。

(去)拿来

I'm going to get my hat from the other room

我要到另一个房间去拿我的帽子。

理解, 听到, 学得

Did you get what I mean

你明白我的意思了吗

感染上, 得(病)

I've got a bad cold

我得了重感冒。

抓住, 击中, 杀死

The police got the thief

警察抓住了小偷。

受到(惩罚等)

vt & vi

到达, 来, 往

The visitors got here last night

游客们是昨晚到达这里的。

vi

开始, 逐渐

You'll get to like it in time

你终究会喜欢它的。

link v

遭到

He got sick

他病了。

成为, 变得

She was getting an old woman

她在变成一个老太太。

在这里特别叙述关于get sth done

get sth doing

get sth to do的用法

get sth done 例子get my hair cut最典型,

get sth doing 有“使启动……并持续”的意思

get my car running

get the clock going

get sth to do 让sb 去做某事,等于have sb do

最后,没有get sb do sth的说法

编辑本段相关短语1 Get married

1结婚

2 Get angry

2生气

3 Get a life!

3做点有意义的事!振作起来!

4 Get a promotion

4得到提升

5 Get lost

5迷路,迷惑

6 Get the sack

6被解雇

7 Get ready

7准备好

8 Get together

8一起

9 Get excited

9兴奋起来

10 Get in touch

10保持联络

11 Get arrested

11被拘捕

12 Get the train

12赶上火车,坐上火车

13 Get a move on

13赶快

14 Get going

14开始,出发,着手

15 Get to know someone

15认识某人

16 Get it

16明白了吗?

17 Get the door

17应门

18 Get along with someone

18与……相处

19 Get by

19通过,过得去

20 Get into something

20沉迷于

编辑本段GET请求(浏览器向服务器发起的请求)

>

声音传播的速度很快,如果传播的英语短语记忆的速度也很快就好了。下面是我给大家整理的传播的英文短语的相关知识,供大家参阅!

传播的英文短语1

to disseminate

to propagate

to spread

put round

put around

spread abroad

get air

hand round

give about

传播的英文短语2

热从暖气片散发出来并传播到室内各个角落。

Heat radiates from the heating radiator and spreads to every corner of the room

谁是弄潮儿和如何传播这些想法呢

Who are the tastemakers and how do these ideas spread

在这种情况下不存在身份传播。

There is no identity propagation in this scenario

如果世界上只有一台传真机没什么用,但是如果每人一台,它们就会成为一个有效的传播网络。

One fax machine in the world can do nothing, but if everyone has one, they build an increasinglyefficient network of communications

您需要将编辑的内容传播到每个新版本中。

You need to propagate the edits over each new version

如果管理员有一个 “黄金映像”,需要把它传播到系统中的每个计算节点,那么他应该了解其中包含的内容。

If an admin has a "golden image" that needs to be propagated to each compute node on thesystem, he should know what is in it

通过及早的警告和协调,我们可以防止疾病的传播。

Through early warning and coordination, we can check the spread of disease

各国应有准备在不远的将来发现病例,或目睹疾病的进一步传播。

Countries should prepare to see cases, or the further spread of cases, in the near future

该逻辑可以包含在客户机上或在客户机和服务器间传播。

This logic can be contained on the client or spread across the client and the server

但是她批评说该宣言没有提及科学传播的重要性。

But she criticised the lack of reference to the importance of science communication

如果一个客户端传播一个事务,且组件被配置来加入该事务,那么这个组件将在同一个事务下运行。

If the client propagates a transaction and a component is configured to join that transaction,then this component will run under the same transaction

这次研讨会总的观点是科学传播应该是由具体事件和需求来决定。

The general view of the symposium was that science communication should be driven by eventsand demand

那么我和你应该做什么我们怎样才能用互联网来帮助传播民主

So what should you and I be doing – how can we personally use the Internet to help spreaddemocracy

传播的英文短语3

为了传播这个观点,我们必须得谈论自由。

To spread this idea, we have to talk about freedom

印刷品有助于传播科学知识。

The printing press helped diffuse scientific knowledge

我们利用它分离脊髓灰质炎病毒并消灭其传播。

We use it to isolate and stamp out transmission of the poliovirus

而这又再次强调了科学传播的重要性。

And that again underlines the importance of science communication

这就需要另一步:从企业模型中传播变更到项目模型中。

That requires another step: propagation of changes to the project models from the enterprisemodels

但是,尽管获得了成功,规划的实施却不能与病毒的快速传播保持同步。

But despite this success, implementation of the programme could not keep pace with the rapidlyspreading virus

我们可以充满信心地说,我们现在能够找到每条病毒传播链。

We can say, with confidence, that we can now find every chain of virus transmission

这样可以使技术知识在小组中传播开来,每一个人都把他的或者她的经验带到工作中。

This allows the skills to be spread across a number of individuals, each bringing his or her ownexperiences to the role

从这个角度看来,科学、传播和外交可以形成一个重要的联盟,特别是在发展援助的背景下。

Seen from this angle, science, communication and diplomacy can form an important alliance,particularly in the context of development aid

好像在知识传播的过程中,那整个一代人都消失了,出现了一个缺口。

It was as if there was an entire lost generation, a hole in the transmission of knowledge

这样可能增加抗药细菌的传播。

This can increase the spread of resistant bacteria

但是过分强调气候变化是驱动因素也有同样的危险,例如,如果它把资金从研究其他帮助传播疾病的关键因素的研究那里调走。

But there is equal danger in over-emphasising climate change as the driving factor — for example, if it channels funds away from research into other key factors that help spreaddiseases

实际上,我们可以控制是存储整个控制消息以便传播,还是仅存储该消息的部分内容。

We actually can control whether the entire control message is stored for propagation or only aportion of the message

停止后再启动部署管理器,将这次的更改传播到所有节点。

Stop and start the deployment manager to propagate the change across all nodes

停止后再启动部署管理器,将这次的更改传播到所有节点。

Stop and start the deployment manager to propagate the change across all nodes

传播的英文短语4

1 The conditions are ripe for the spread of disease

这种疾病传播的条件已经成熟。

2 Word has been spreading fast of the incidents on the streets

有关街头骚乱的消息迅速传播开来。

3 Hackers are said to have started a computer virus

据说黑客们已经开始传播一种新的电脑病毒。

4 His noisome reputation for corruption had already begun to spread

他贪污的恶名已经四处传播开了。

5 Frogs eat pests which destroy crops and carry diseases

青蛙吃破坏庄稼、传播疾病的害虫。

6 Coughs and sneezes spread infections much faster in a warm atmos-phere

在温暖的环境中,咳嗽和喷嚏传播疾病的速度要快得多。

7 Plants have different mechanisms of dispersal for their spores

植物传播孢子的方法各不相同。

8 The greatest hope for reform is the gradual spread of information

对改革的最大希望是信息能得以逐渐传播。

9 The disease can spread from one mammalian species to another

这种疾病能够在不同的哺乳类物种之间传播。

10 There is a risk of passing the virus on

有传播病毒的风险。

11 When sound travels through water, strange things can happen

当声音在水中传播时,可能会发生奇怪的现象。

12 There was no danger of transmitting the infection through operations

不存在通过手术传播这种传染病的风险。

13 The idea is to spread social democracy and economics outwards from Europe

其目的是将欧洲的社会民主与经济制度传播到世界各地。

14 One of the ways the parasite spreads is through fecal matter

寄生虫传播的一种方式是通过排泄物。

15 The chances of the disease being transferred to humans is extremely remote

该疾病传播到人类身上的几率微乎其微。


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