发信人: beta756 (beta756), 信区: QingJiao
标  题: 我们真的需要那么多研究生吗?
发信站: 水木社区 (Thu Nov  4 16:40:34 2021), 站内

美国一华人在it公司,经常写博客,说:“美国人学IT,本科毕业找工作就足够,不需要读研究生。只有将来想做科研或者教授的学生,才读研究生。”同理,为啥我国那么多公司要求研究生起步呢?
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※ 来源:·水木社区 http://www.mysmth.net·[FROM: 120.204.58.*]

发信人: jiedinghui (jiedinghui), 信区: FamilyLife
标  题: 孩子好好说总是不听,非要大吼着才行,怎么办啊
发信站: 水木社区 (Thu Nov  4 22:32:58 2021), 站内

所有的事情都是这样,洗脸刷牙吃饭,等等等等,总要嬉皮笑脸或者爱答不理,除了让他看电视玩电脑,今年8岁,从6岁开始这样
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※ 来源:·水木社区 http://m.mysmth.net·[FROM: 42.94.68.*]

发信人: tcwyzhf (整天瞎想的青椒一枚), 信区: CouponsLife
标  题: 双十一只花了500多是不是非常勤俭持家了?
发信站: 水木社区 (Fri Nov  5 00:55:59 2021), 站内

两个咖啡杯一个给自己一个给媳妇,共275;一个小米写字板给娃,69;一个TOTO花洒喷头,199。总计543元。

发自「今日水木 on M+ Pro我心爱的小电驴」
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曾经有一个签名档摆在我的面前

※ 来源:·水木社区 http://www.mysmth.net·[FROM: 114.249.60.*]



发信人: flyping (皮皮鲁), 信区: AutoWorld
标  题: 警察抓电驴
发信站: 水木社区 (Thu Nov  4 13:12:15 2021), 站内



发自「今日水木 on iPhone 12 Pro Max」
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http://www.imdb.com/name/nm0176882/


※ 来源:·水木社区 http://www.mysmth.net·[FROM: 61.149.219.*]



发信人: miller (人在旅途), 信区: Astronomy
标  题: M42
发信站: 水木社区 (Tue Nov  2 21:09:47 2021), 站内

早起拍水星的间隙,趁机掐了几张M42,累计曝光时间<5分钟。

补充
设备: 80毫米折射望远镜(Orion ED80T CF triplet), eq6r pro,  佳能550d
这张照片是计划外的,当时快天亮了,没法长曝光。曝光30秒5张,15秒3张,叠加后几乎无后期处理。


发自「今日水木 on iPhone XS」
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他并不接受前人奠定的基础,却另起炉灶,努力缔造一个完整
的哲学体系。这是从亚里士多德以来未曾有的事,是科学的进
展带来的新自信心的标志。他的著作泛发着一股从柏拉图到当
时的任何哲学名家的作品中全找不到的清新气息。
※ 修改:·miller 于 Nov  5 09:36:11 2021 修改本文·[FROM: 72.222.236.*]
※ 来源:·水木社区 http://www.mysmth.net·[FROM: 72.222.236.*]

发信人: aiqingcome (神一样的存在), 信区: PieLove
标  题: 90年MM带照片诚意征婚-USA
发信站: 水木社区 (Fri Nov  5 05:00:56 2021), 站内

90年MM带照片诚意征婚,有小别墅,啥也不缺,找个阳光帅气男人结婚

我搭档,经常来回穿梭在拉维斯加和西雅图这两个城市
一个人打拼这么多年,能力挺强的
90年女,属马,自己开公司,拉维斯加和西雅图都有房子,
一年赚几百万美金问题不大
今天突然说感觉一个人生活也不是个事,想找个男朋友结婚
对男方要求也不算高,最好在这两个城市里面一个就行。
或者如果聊的来,能辞了工作到女方的城市来也行
相对来说女方觉得西雅图更好点,那边美食不错
女方啥都有,靠自己白手起家买。
男方也不用压力太大,工资高低无所谓,
要有绿卡(主要是再帮男人办个绿卡太麻烦了,据说3年都未必办下来)
女方有绿卡
阳光帅气聊得来就行

女方之前谈过男朋友,已经分了
她这要求我感觉不高,不过她说自己一直忙工作
根本没啥机会出去找。
有没有这样的男人呢,我可以帮你们牵牵线







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※ 修改:·moonboyer 于 Nov  5 11:35:55 2021 修改本文·[FROM: 39.106.161.*]
※ 来源:·水木社区 http://www.mysmth.net·[FROM: 106.122.222.*]

发信人: hbtkls (我爱宝宝), 信区: Stock
标  题: 亏了三百多万 已站上天台
发信站: 水木社区 (Fri Nov  5 11:52:25 2021), 站内

希望你们好自为之,早日醒悟,别踏上我的后尘。
这里都是人吃人的世界,残酷无情
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※ 修改:·hbtkls 于 Nov  5 11:54:13 2021 修改本文·[FROM: 117.136.31.*]
※ 来源:·水木社区 http://m.mysmth.net·[FROM: 117.136.31.*]
发信人: kis2006 (Dr.Web), 信区: DigiHome
标  题: 我家的ssh server被盯上了,反复尝试登录暴力破解,差点被黑
发信站: 水木社区 (Thu Nov  4 21:01:13 2021), 站内

前两天从外面连家里的ssh server,发现ssh连不上,但端口能通。回家之后查日志,发现有2个国外IP大量登录尝试。

我是在armbian上起的ssh服务,默认22端口也改了,禁用密码登录,只开启key登录。运行了小1年。万幸是没黑进来,但是反复尝试登录暴力破解,把ssh服务弄挂了。如果不是这次ssh服务器挂了,平时哪会想起来看日志。

马上装了个denyhosts防护脚本,并且禁用root账号ssh登录。今天上午又来一个IP,被自动封掉了。

小心驶得万年船

贴2个日志截图






PS: 我发这个帖子,也是给大家提个醒,家里有NAS或者软路由的,并且在公网开放了SSH端口的,千万要小心

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※ 修改:·kis2006 于 Nov  5 11:55:16 2021 修改本文·[FROM: 125.38.118.*]
※ 来源:·水木社区 http://www.mysmth.net·[FROM: 125.38.118.*]

发信人: jfs2 (aix7), 信区: MilitaryView
标  题: 被撞的海狼要报废,舰长已撤职
发信站: 水木社区 (Fri Nov  5 08:44:50 2021), 站内

丑帝确实是纸老虎。
US Navy FIRES USS Connecticut Captain, XO and Chief of the Boat after $3.1bn
nuclear-powered attack submarine collided with 'uncharted seamount' in
South China Sea
The US Navy has fired the Commanding Officer (CO), Executive Officer (XO)
and Chief of the Boat (COB) for 'loss of confidence' after submarine crash
On October 2 the USS Connecticut collided with an 'uncharted seamount' in
the South China Sea during soaring tensions with China
A seamount is a mountain which rises from the ocean floor
CO Cmdr Cameron Aljilani, XO Lt Cmdr Patrick Cashin and COB Cory Rodgers
were relieved of their positions on Wednesday
A statement from the Navy said that the crash, which injured 11 crew members
, could have been prevented with 'sound judgement (and) decision-making'
But the Navy has determined that there was no foul play in the incident
Navy remains on high alert in the South China Sea amid threats from Beijing

http://www.dailymail.co.uk/news/article-10166923/US-Navy-FIRES-USS-officers-loss-confidence-nuclear-powered-attack-South-China-Sea.html


Navy Faces Prospect That Crash Will Force USS Connecticut Out Of Service

Craig Hooper
Senior Contributor
Aerospace & Defense
I evaluate national security threats and propose solutions.

USS San Francisco Sits In Dry Dock
The Los Angeles-class U.S Navy submarine USS San [+]
GETTY IMAGES
Despite a virtual news blackout, information on America’s damaged Seawolf
Class attack submarine, USS Connecticut (SSN-22), is starting to leak out.
While details are scarce, the Pacific Fleet’s latest operational debacle
has left the U.S. without a key undersea combatant. At a minimum, the USS
Connecticut will be out of service for years, and there is a creeping
realization that the damage may be significant enough to force the USS
Connecticut into a premature retirement.


It is time for the Navy to start talking. Regardless of the outcome, the
fate of the USS Connecticut has enormous ramifications for virtually every
facet of America’s maritime industrial base. Given the extended news
blackout and the fact that the submarine hasn’t budged from Guam yet,
indications suggest the USS Connecticut is badly hurt.



This is no time to smother a potentially uncomfortable debate under an over-
classified blanket; the USS Connecticut’s mishap is a big deal and no
longer a cozy internal Navy matter.


With the Command Investigation nearing completion, the Navy’s continued
silence is doing more harm than good. China is gleefully hammering away at
America’s sullen silence. And every day spent keeping the USS Connecticut
under wraps is one less day for America to debate and prepare a viable path
forward. Geopolitics aside, the United States needs to know just how the USS
Connecticut’s accident is likely to stress America’s undersea industrial
base. And if this mishap is a self-inflicted wound, stemming from
longstanding but long-unfixed problems within the Navy, then real changes
must be made.

There is no more time for the Navy to indulge in a long, leisurely study
into root causes before deciding on the way ahead. Somebody, somewhere in
the Navy Department needs to take what data is available today and use it to
lead. Decisions on the stricken sub need to be made quickly,
dispassionately, and with a rigor that an emotional Navy will be loathe to
deliver.


This crisis is now the defining challenge for Carlos Del Toro, the new Navy
Secretary. America can only hope he is stern enough for the task ahead.

It Doesn’t Sound Good

While the “silent service” is living up to its name, information on the
submarine’s condition is gradually leaking out. Over at the U.S. Naval
Institute (USNI), the indefatigable Sam LaGrone is hearing whispers of
damage. Two defense officials told USNI that the impact “damaged the
submarine’s forward ballast tanks.” Others told USNI News that the
submarine had hit and grounded upon an uncharted seamount in the South China
Sea.

The last time the Navy publicly reported a submarine had damaged their
forward ballast tanks was in 2005, when the USS San Francisco (SSN-711)
suffered a catastrophic collision with a seamount. While nobody is saying
that the USS Connecticut suffered as extensive damage in the current
incident, the USS Connecticut likely won’t be returning to service anytime
soon.

Submarine repairs take a lot of time. The USS San Francisco was stuck at
Guam for seven months and needed four years of work before returning to
service.

To get the USS San Francisco’s back in a timely fashion, the Navy resorted
to cannibalism, taking a bow from the retiring USS Honolulu (SSN-718)—a
similarly-aged sub that, due to budget cuts, was being prematurely retired.
The “nose job” was complex enough, requiring 285,000 worker days to
complete, but the task of appropriating the old bow and aligning and mating
internal systems was a whole lot easier than repairing and restoring damaged
external hull structures from scratch.

Working from scratch is what the Navy will likely need to do if it wants to
repair the USS Connecticut. As the Navy has little in the way of spare
Seawolf Class parts sitting around—and no older boats to cannibalize—
rehabilitating and re-certifying the USS Connecticut may be a far more time-
consuming and expensive engineering challenge than either the U.S. Navy or U
.S. taxpayers expect.


In these situations, the Navy’s instinctual bias is almost always slanted
towards saving the damaged craft—regardless of whether it makes fiscal or
operational sense. In the USS San Francisco’s case, the Navy had two
obvious options—either repair the newly-refueled USS San Francisco or
retire the USS San Francisco and refuel a similarly—aged submarine, USS
Honolulu. To support the decision the Navy estimated that the repairs would
cost $79 million, about half the $170 million needed to refuel the Honolulu.
But the Navy’s initial repair estimate was inaccurate, and the fix became
a relative “wash,” with the final bill for the USS San Francisco clocking
in at $134 million—barely a 20% difference.

Neither option is available today—the choice is either to retire the sub or
try to fix it. But again, the bias will be towards saving the sub. For the
Navy, the political cost of losing the USS Connecticut will be enormous, and
, frankly, Congress may expect naval leadership—from the Chief of Naval
Operations on down—to pay for it with their careers. But with few spares
and no prior hulls to cannibalize, repairing the USS Connecticut risks
becoming a complex, sprawling affair that the Navy simply cannot afford to
endure. There are no good options.

Is the Juice Worth The Squeeze?

Depending upon the damage, retiring the USS Connecticut early and turning it
into a “parts barn” for the USS Seawolf (SSN-21) and USS Jimmy Carter (
SSN-23) may well be the only sensible path.

The USS Connecticut is a unique “Cold War” fighter, endowed with enviable
capabilities, but it is—to put it bluntly—also a middle-aged
representative of a boutique and hard-to-maintain three-submarine class.
Presently 23 years old, and with an expected service life of about 40 years,
a pricey, four to five-year availability may not be worth the total cost—
not just in repair dollars necessary for the USS Connecticut itself, but in
the toll deferred maintenance on other platforms will inflict upon the rest
of the Navy.


Time is the enemy here. Submarines have a finite lifespan. In the case of
the USS San Francisco, the years spent inactive in the repair yard didn’t
translate into extra service life. The USS San Francisco ultimately retired
after 40 years while the submarine’s undamaged but similarly-aged peers
left the service at 38 years.

The same will be true with the USS Connecticut. Even if repaired, the USS
Connecticut may emerge with numerous operational restrictions and only
enough formal service life to offer America a mere handful of patrols. The
long refit may leave the sub’s reactor with an enormous amount of energy
left to offer, but, to leverage that power, the USS Connecticut’s hull and
associated structures would need very thorough—and expensive—analyses to
keep the boat safe and certified for operations. Once operational, added
maintenance and safety checks would eat away the boat’s remaining time
forward.

Again, the unique nature of the Seawolf Class—a thicker hull built with
harder steel—is a problem. The Navy’s 62 Los Angeles Class attack
submarines offered numerous opportunities to harvest condition-related data
collection and conduct hull performance studies. But the three Seawolf boats
(and a few Los Angeles Class subs that trialed the high-strength steel)
just cannot generate the necessary data in an efficient fashion.

It is unfortunate that the USS Connecticut suffered the maritime equivalent
of a controlled flight into terrain after being, in effect, conserved for
just the type of challenge China presents. But the faster the Navy and
Congress realize that the USS Connecticut, if repaired, will never be a true
Seawolf again, the faster America can move forward—either by buying more
subs, accelerating the development of a new attack submarine design or by
repairing the USS Connecticut and shunting it into a less demanding support
role, serving as, say, a battery pack and test platform for undersea systems
.


The Navy Is At Crush Depth

Deciding the fate of the USS San Francisco was hard enough. But this time,
with the USS Connecticut, the trade-offs will be far tougher to map out. The
strategic challenge with China, coupled with the Navy’s fiscal,
operational, and maintenance crises at home make the path forward far more
challenging.

But this is where Del Toro can make a difference. It is the Secretary of the
Navy’s job to hold the institution’s feet to the fire, and Congress has
empowered Del Toro to make hard decisions on accountability and on the way
forward. Hopefully he is up to the task.

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Craig Hooper
I offer blunt, uncompromising guidance on national security solutions,
bringing complex security issues and oft-neglected defense topics to the
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※ 修改:·jfs2 于 Nov  5 09:00:59 2021 修改本文·[FROM: 114.249.224.*]
※ 来源:·水木社区 http://www.mysmth.net·[FROM: 114.249.224.*]