Mig-29: Side View

Mig-29: Side View

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Mig-29: Side View

A side view of the Mig-29 "Fulcrum"

How to Use ‘Yum History’ to Find Out Installed or Removed Packages Info

YUM is an interactive, rpm based, high level package manager for RHEL/CentOS systems, it enables users to install new packages, remove/erase old/unwanted packages. It can automatically run system updates and does dependency analysis, and also perform queries on the installed packages and/or available packages plus so much more.

In this article, we will explain how to view history of YUM transactions in order to find out information about installed packages and those that where removed/erased from a system.

Below are some examples of how to use the YUM history command.

View Complete YUM History

To view a full history of YUM transactions, we can run the command below which will show us the: transaction id, login user who executed the particular action, date and time when the operation happened, the actual action and additional information about any thing wrong with the operation:

Use Yum to Find Package Info

The history sub-commands: info/list/summary can take a transaction ID or package name as an argument. Additionally, the list sub-command can take a special argument, all meaning – all transactions.

The previous history command is equivalent to running:

And, you can view details of transactions concerning a given package such as httpd web server with the info command as follows:

To get a summary of the transactions concerning httpd package, we can issue the following command:

It is also possible to use a transaction ID, the command below will display details of the transaction ID 15 .

Use Yum History to Find Package Transaction Info

There are sub-commands that print out transaction details of a specific package or group of packages. We can use package-list or package_info to view more info about httpd package like so:

To get history about multiple packages, we can run:

Use Yum to Rollback Packages

Furthermore, there are certain history sub-commands that enable us to: undo/redo/rollback transactions.

  1. Undo – will undo a specified transaction.
  2. redo – repeat the work of a specified transaction
  3. rollback – will undo all transactions up to the point of the specified transaction.

They take either a single transaction id or the keyword last and an offset from the last transaction.

For example, assuming we’ve done 60 transactions, “last” refers to transaction 60, and “last-4” points to transaction 56.

This is how the sub-commands above work: If we have 5 transactions: V, W, X, Y and Z, where packages where installed respectively.

In the following example, transaction 2 was a update operation, as seen below, the redo command that follows will repeat transaction 2 upgrading all the packages updated by that time:

The redo sub-command can also take some optional arguments before we specify a transaction:

  1. force-reinstall – reinstalls any packages that were installed in that transaction (via yum install, upgrade or downgrade).
  2. force-remove – removes any packages that were updated or downgraded.

Find Yum History Database and Sources Info

These sub-commands provide us information about the history DB and additional info sources:

  1. addon-info – will provide sources of additional information.
  2. stats – displays statistics about the current history DB.
  3. sync – enables us to alter the the rpmdb/yumdb data stored for any installed packages.

Consider the commands below to understand how these sub-commands practically work:

To set a new history file, use the new sub-command:

We can find a complete information about YUM history command and several other commands in the yum man page:

That’s it for now. In this guide, we explained various YUM history commands to view details of YUM transactions. Remember to offer us your thoughts concerning this guide via the comment section below.

See Katy Perry, Ne-Yo, Gavin DeGraw Perform at ‘Side by Side: A Celebration of Service’

Katy Perry, Ne-Yo and Gavin DeGraw performed during this year’s “Side by Side: A Celebration of Service” on Monday. The livestreamed concert benefited Northwell Health’s Military Liaison Services Program.

Ne-Yo performed an in-person show for military and healthcare workers from the top of One World Observatory, which included delivering “Let’s Go” at around the 17:25 mark. Gavin DeGraw’s live performance took place from the rooftop at Lenox Health Greenwich Village. DeGraw performed “Soldier” at around the 49:25 mark.

Katy Perry &mdash whose stripped-down closing set at around the 1:14:00 mark included “Roar,” “Resilient,” and “Firework” &mdash spoke with John Kelly, Care Coordinator at Northwell Health’s Military Liaison Services Program, and veteran Sean Christensen at around the 1:09:21 mark.

“I’ve learned from my new friends Sean Christensen and John Kelly that soldiers undergo resiliency training to ensure that they’re self-sufficient during combat,” Perry said in a statement. “However, when they return home, it’s often this very training that prevents them from seeking the help that they need. These two military veterans are now working with Northwell to ensure our heroes returning from combat understand that asking for help isn’t giving up, it’s refusing to give up.”

Which COVID-19 vaccines are available?

Three COVID-19 vaccines have received emergency use authorization (EUA) from the US Food and Drug Administration (FDA):

  • The Pfizer-BioNTech vaccine is authorized for people 12 years of age or older. It is given in 2 doses, 3 weeks apart.
  • The Moderna vaccine is authorized for people 18 years of age or older. It is given in 2 doses, 4 weeks apart.
  • The Johnson & Johnson (Janssen) vaccine is authorized for people 18 years of age and older. It is given as a single injection.

The Pfizer-BioNTech and Moderna vaccines contain messenger RNA (mRNA), which is a type of genetic material. After a person receives the vaccine, the mRNA enters cells in the body and tells them to make copies of the COVID-19 virus’s “spike” protein (the protein that normally helps the virus infect human cells). This doesn’t cause disease, but it does help teach the immune system to act against the virus if the body is exposed to it in the future.

The Johnson & Johnson (Janssen) vaccine contains an adenovirus (a type of virus that is different from the coronavirus that causes COVID-19), which has been changed in the lab so that it contains the gene (piece of DNA) for the COVID-19 virus’s spike protein. Once the adenovirus enters cells in the body, this gene tells the cells to make copies of the spike protein. This triggers the immune system to recognize and attack the COVID-19 virus if the body is exposed to it in the future. The adenovirus in this vaccine is not a live virus because it has been changed so that it can no longer reproduce in the body (nor can it cause disease).

All three of these vaccines have been found to significantly lower the risk of being infected with COVID-19. They have also been shown to be very effective at lowering the risk of having severe disease, being hospitalized, or dying from COVID-19 if you are infected.

Some vaccines for other diseases contain changed versions of the live viruses that cause the diseases. These live viruses don’t cause problems in people with normal immune systems. But they might not be safe for people with weakened immune systems, so live virus vaccines typically are not recommended for cancer patients. However, the COVID-19 vaccines available in the US do not contain these types of live viruses.

For more on these vaccines, see “Should people with cancer get a specific COVID vaccine?”

Japan's bitter vaccine history creates hurdle in COVID-19 fight

With agreements to secure more coronavirus vaccines than it needs and legislation to distribute it for free, Japan may seem to have its inoculation plans in place. Yet a tense public history with vaccines and a cautious approval process has some concerned over how quickly the country can return to normal.

Japan has one of the lowest rates of vaccine confidence in the world, according to a Lancet study, which found that fewer than 30% of people strongly agreed that vaccines were safe, important and effective, compared with at least 50% of Americans. A recent poll by NHK found 36% said they didn’t want to take a COVID-19 vaccine.

The government now faces a tricky balancing act: trying to move quickly to approve the jabs in order to restore the economy to full health, while avoiding creating the impression of a rush-job — which might help turn an already-skeptical public off getting inoculated.

“Japan is very cautious about vaccines, because historically there have been issues about potential side effects,” said Haruka Sakamoto, a public health researcher at the University of Tokyo. “The government has been involved in several lawsuits related to the issue, which adds to their deep caution.”

Cautious timeline

The skeptical attitude pre-dates the more recent Western “anti-vax” sentiment that has thrived on social media, with its roots instead in past vaccine-linked events and legal rulings that encouraged the government to take a passive stance on vaccination.

And ironically, Japan’s relative success in handling the pandemic means an urgent rollout of the shot is less of a priority. The country has avoided a second state of emergency, even as cases have increased to record levels.

As a result, Japan’s rollout is set to be slower than some other nations, which has led to frustration among those counting on vaccines to eradicate the virus. Only Pfizer Inc. has so far applied for local approval of its coronavirus shot, even as the U.K. and the U.S. have both administered more than half a million doses, mostly to the elderly and health care workers.

Local media have reported that vaccines will be rolled out in Japan from late February, when the government aims to inoculate about 10,000 front-line health care workers. The ministry is then preparing to vaccinate general medical staff, after which it will be gradually administered to the wider population. Japan hasn’t stated when it aims to complete its vaccination program.

The Ginza shopping district in Tokyo. Japan’s skeptical attitude toward vaccines pre-dates the more recent Western “anti-vax” sentiment that has thrived on social media. | AP

While figures such as U.S. Vice President Mike Pence and President-elect Joe Biden have gotten the dose, and leaders such as Indonesian President Joko Widodo are volunteering to be the first to receive it in their countries, Prime Minister Yoshihide Suga has said he will wait his turn.

Health minister Norihisa Tamura said Friday that he has asked relevant bodies to prioritize the review of Pfizer’s application, but didn’t give a timeline for approval. A health ministry spokesman also declined to comment on the reported timeline.

MMR issues

Japan’s modern vaccine unease has its roots in a measles, mumps and rubella inoculation that some suspected of leading to higher rates of aseptic meningitis in the early 1990s. Though no definitive link was established, the shots were discontinued, and to this day Japan doesn’t recommend a combined MMR shot.

Another catalyst was a 1992 court ruling that not only made the government responsible for any adverse reactions related to vaccines, but also stipulated that suspected side effects would be considered adverse events, said Tetsuo Nakayama, a professor at the Kitasato Institute for Life Sciences whose research focuses on vaccines. Two years later, the government revised a vaccination law, scrapping mandatory vaccinations.

These events helped send a message that inoculations should be taken at one’s own risk, and diluted the awareness of vaccination as a greater public benefit, said Mikihito Tanaka, a professor at Waseda University specializing in science communication.

“Japan has a strong health insurance scheme and an accessible medical system,” he said. “Compared to places like the U.S., that makes the incentive to gamble one’s health with a new vaccine very low.”

The handling of the human papillomavirus (HPV) vaccine also looms large in public memory. After media coverage on claims the vaccine’s side effects included severe headaches and seizures, the health ministry in 2013 withdrew its recommendation for the shot, which has proven safe and effective in preventing cervical cancer. While it remained available on request, the vaccination rate plummeted from 70% to less than 1% currently. That may have led to an additional 5,700 deaths, according to one study.

‘Wide shows’

Japan’s drug approvals require clinical trials involving Japanese people, but an emergency authorization based on data from other countries is allowed. Vaccines for the 2009 H1N1 flu pandemic were given emergency approval after about three months review.

Still, the government will have to carefully manage how the public perceives a speedy approval process. The economic impact of the pandemic and the forthcoming Tokyo Olympics could prompt a faster approval, but also arouse suspicion over whether the shots have been thoroughly vetted.

How the public will perceive some typical side effects is also concerning, Nakayama said. Initial data from the vaccines show local pain in 80% of cases and fatigue and headaches in up to 50%, but “there has never been a vaccine in Japan that has caused reactions to these levels,” he said. The issue poses questions as ultimately, public opinion will decide the scale of the rollout.

Tanaka said he was particularly worried about the influence of variety news programs, which serve as both news and entertainment and are hugely influential in shaping public opinion, which ultimately will decide the scale of the rollout.

“The final decision to receive the vaccine or not will be made by the people,” health minister Tamura noted on Friday.

In a time of both misinformation and too much information, quality journalism is more crucial than ever.
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Mirror glass options

  • Auto-Dimming: Also known as electrochromic mirrors, they dim the glass to automatically reduce glare from lights coming from behind the vehicle.
  • Spotter Glass: This smaller second piece of glass is curved to allow the driver to see farther behind the vehicle.
  • Heated: A heating element, usually controlled by the defroster, touches the glass to melt ice and snow and dissipate fog.
  • Blue Glass: Helps prevent glare and maintain consistent visibility. Unlike other glass choices, blue glass has the option of being installed on only one side of a vehicle.

  • Make sure that your iPad has the latest version of iOS or iPadOS.
  • To use Split View, you need an iPad Pro, iPad (5th generation and later), iPad Air 2 and later, or iPad mini 4 and later.

  1. Put your iPad in landscape mode.
  2. Open Safari.
  3. To see two web pages at the same time, do one of the following:
    • Open a link in Split View: Touch and hold the link, then drag it to the right-hand side of your screen.
    • Open a blank page in Split View: Touch and hold , then tap Open New Window.
    • Move a tab to the other side of Split View: Drag the tab left or right in the Split View.

To leave Split View, touch and hold , then tap Merge All Windows or Close All [number] Tabs. You can also tap to close tabs individually.

How to Get Rid of a Small Floating Window on iPad (Slide Over)

While using your iPad, you may end up with a smaller window off to the side hovering over a full-screen app. This is called Slide Over, and it looks like this.

To dismiss the small Slide Over window, place your finger on the control bar at the top of the Slide Over window, and quickly swipe it toward the right edge of the screen if the window is on the right side, or swipe toward the left edge of the screen if the window is on the left.

For most people, this does the trick, but you are technically only hiding the Slide Over window, not closing it. It can still be recalled by swiping it back from the edge of the screen corresponding to the side you hid it on.

To fully close a Slide Over window, hold your finger on the control bar at the top, and slide it slowly toward the edge of the screen until it becomes part of a split-screen view (called Split View). Then you can close the unwanted window by sliding the black partition between the two windows all the way to the edge of the screen until one window disappears (See “How to Get Rid of Split Screen on iPad” below).

If you’d like to disable Slide Over in Settings so it never shows up again, you can disable multitasking on your iPad.

The True Story Behind ‘The Courier’

In November 1960, Greville Wynne, a 41-year-old British businessman, sat down for a lunch that would change his life. His dining companion, Dickie Franks, revealed himself to be an officer of the British Secret Intelligence Service, also known as MI6, and asked Wynne for his help. An industrial sales consultant who regularly traveled through Eastern Europe and the Soviet Union representing British electrical and steel companies, Wynne was told it would be helpful if on his next trip, he could arrange for a meeting with a state committee in Moscow dedicated to developing opportunities with foreigners in science and technology, and report back on his conversations. Despite having no previous experience in intelligence work, Wynne was being recruited to serve as an MI6 agent.

Wynne agreed, and during his visit to Moscow the following month he wound up connecting with Oleg Penkovsky, a lieutenant colonel in the GRU (the Soviet Union’s foreign-intelligence agency) who was eager to leak high-level military information to Western powers. Penkovsky felt stunted in his career with GRU and expected that by helping the West for a year or two, he and his family could be relocated and build a better life, and that he would personally be showered with recognition and honor. Wynne went along, slightly concerned about whether Penkovsky was on the level and concerned about putting himself into a dangerous situation, kicking off what would be one of the most productive clandestine operations in Cold War history. Penkovsky’s information, and Wynne’s help in delivering it to British and American intelligence officers, would produce mountains of material, play a role in the Cuban Missile Crisis, and land both men in prison.

These events serve as the inspiration for The Courier, the new film starring Benedict Cumberbatch as Wynne and Georgian actor Merab Ninidze as Penkovsky, out in theaters on March 19. The film’s screenwriter, Tom O’Connor, found Wynne’s story of a nobody suddenly becoming a somebody compelling. “He just was an ordinary man who got thrust into this just extraordinary, life-altering situation that was going to define his existence forever,” says O’Connor. “The burden of that is hard to imagine.”

But as he began researching Wynne’s story, he learned that this ordinary man could also tell some extraordinary lies. In the late 1960s, after he had been imprisoned for his spycraft and could no longer assist MI6 nor the CIA, the amateur spy authored a pair of books: The Man From Moscow: The Story of Wynne and Penkovsky and The Man From Odessa, that were riddled with falsehoods.

“[Wynne], bless him, for all his wonderful work, was a menace and a fabricator,” says Nigel West, who has written numerous books on British and American intelligence organizations, including two books specifically about fabricators in the intelligence arena. “He just couldn’t tell the truth. It was pathological with him.”

While its standard for Hollywood films to take liberties with the facts, insert composite characters, devise imagined conversations, and smooth-out timelines to ensure a brisk pace, it’s less common for a based-on-a-true-story movie to have to be more truthful than the source material.

O’Connor makes clear that The Courier is “not a documentary,” even as he explains that he took pains to stick to the facts as much as they could be ascertained—drawing on works such as Jerrold L. Shecter and Peter S. Deriabin’s The Spy Who Saved the World: How a Soviet Colonel Changed the Course of the Cold War and other accounts that could be trusted more than Wynne’s own inventions.

“There’s a fair amount of source material from all different kinds of authors, so by reading everybody—not just Wynne’s books, but other historians, and the official history put out by the American side and the Soviet side — I was able to try and work out what made the most sense and what seemed liked disinformation,” says O’Connor.

Even though Wynne wasn’t exactly a reliable narrator for what he did during his time as a secret agent, the materials he smuggled from behind the Iron Curtain were the real thing. After the initial meeting in December 1960, Penkovsky provided Wynne with film of Soviet military documents and later promised more information if an arrangement with British or American intelligence could be made. Wynne dutifully passed the images to his contacts with British intelligence, who established their legitimacy. Thus began their fruitful relationship, one that involved Wynne hosting Penkovsky in London, who was visiting under the pretense of cultivate new opportunities in the West. On this trip, Penkovsky submitted to hours of interviews with British and American intelligence officials about the Soviet Union’s military and political developments.

“Penkovsky’s dynamism and enthusiasm, his wide-ranging and passionate denunciations of the Soviet system and its leaders illustrated with anecdotes, fascinated and captivated the American and British teams,” write Schecter and Deriabin. “Never before had there been a Soviet spy like him.”

Wynne also enthusiastically embraced his role, enjoying the part of a daring secret agent where he could apply his salesman skills to a higher-stakes game. During their visits, Penkovsky and Wynne would get out on the town, visiting restaurants, nightclubs and shops under the cover of talking business, with each man proudly showing the other around his home country. They made an odd contrast—the short, energetic, and thinly mustachioed Wynne alongside the military bearing of Penkovsky—but there seemed to be genuine affection between the two, and this friendship is a central focus of The Courier.

“These guys were in the foxhole together—they each had a secret that only the other man knew,” says O’Connor. “They were alone in the world with this incredible burden except for the other man.”

But the chummy interactions between the agents and Penkovsky’s prolific, even reckless, acquisition of materials grew increasingly perilous—and finally caught the KGB’s attention. After a meeting in Paris in September 1961, Penkovsky’s next trips were mysteriously cancelled at the last minute. When Wynne visited Moscow in July 1962, his hotel room and luggage were searched, and he was tailed during his travels.

On October 29 of that year, just hours after the Soviets stood down during the Cuban Missile Crisis, Wynne went to Soviet-occupied Budapest with a traveling exhibition of British industrial goods, against the advice of his MI6 handlers. Wynne would later relate that as he walked down the steps of an exhibition pavilion, four men suddenly appeared as a car pulled up and Wynne was pushed inside. He was flown to Moscow, imprisoned, and tried alongside Penkovsky, who it would later be learned had been arrested the week before Wynne entered Hungary.

“They had to go through a show trial, basically, so on the stand Wynne accused MI6 of using him as a dupe—he may have just been saying whatever he could say because he worried they might execute him,” says Jeremy Duns, an author of several spy novels set during the Cold War as well as the history book Codename: Hero: The True Story of Oleg Penkovsky and the Cold War’s Most Dangerous Operation.

For his treason, Penkovsky was sentenced to death and executed by firing squad days after the trial ended (though Wynne would later claim he died of suicide). Wynne, despite claiming ignorance of what materials he was smuggling to the West, was sentenced to eight years in prison. After months of negotiations, the British government was eventually able to arrange a trade of Wynne for the Soviet spy Gordon Lonsdale, who’d been arrested the year before and was serving a 25-year sentence in England.

In all, Penkovsky had provided Western intelligence with about 140 hours of interviews and 111 exposed rolls of film, contributing to some 10,000 pages of intelligence reports. The operation was “the most productive classic clandestine operation ever conducted by the CIA or MI6 against the Soviet target,” as Schecter and Deriabin put it, and key to its success was the mustachioed courier with no prior intelligence experience.

“Penkovsky gave a huge amount of details about what missiles the Soviets had, how old they were, how there were queues for food—it was an extremely vivid portrait of the country and the people within intelligence,” says Duns. “He was senior enough that you could sit down with the agents for hours and explain the entire context of how Soviet intelligence worked.”

Among the materials Penkovsky provided to Wynne were four photocopies of plans for construction sites of missile-launching installations in Cuba. This gave American officials a clearer picture of what the Soviets were doing in the region, bringing in medium-range ballistic missiles. It also helped Americans to understand how limited the Soviets’ capabilities actually were in the area, so as tensions grew during the Cuban Missile Crisis, Kennedy “knew how much rope he could give [Soviet Premier Nikita] Khrushchev,” as Duns puts it.

Upon release from prison, Wynne’s old life was in tatters—he’d lost much of his business and the time spent in the Soviet prison seemed to have caused long-term damage. Seeking ways to parlay the notoriety he received, he became what Duns calls a “rent-a-spokesperson for all kinds of espionage stuff,” making appearances in the media about anything related to spycraft, whether or not it was anything he had experience with. This led to the publication of his dubious memoirs. At the time, they were largely accepted at face value and sold well. The BBC produced a TV movie based on them. But over time, intelligence experts and those involved in the case, though reluctant to share sensitive information, cast doubt on much of what Wynne laid out in his books.

Wynne’s fabrications range from small to huge. In one of his biggest whoppers, Wynne explains that he and Penkovsky took a trip together in a private military jet from the U.K. to Washington, D.C. The two then visited the White House where President John F. Kennedy personally thanked them for their service—then the two returned to the U.K. just 18 hours later. Not only was this account widely denied shortly after publication by members of the CIA and Kennedy’s staff, but it would have been against the way espionage is run—keeping heads of state a safe distance from the details of intelligence work. To top it off, it would have been physically impossible at the time.

“In 1961, jet travel did not allow someone to fly from the U.K. to the U.S. and back again in 24 hours,” says West.

Why did Wynne make up so much, when the truths of his 18 months as a spy are already filled with astounding details? Among the explanations are a desire for money or fame, a ruinous case of alcoholism, or perhaps even psychological scars left by his time in Soviet prison or the shame he felt for publicly turning against British intelligence during the trial. West maintains that it’s the result of something all too typical in the intelligence community—what he calls “post-usefulness syndrome.”

“Imagine that I recruit you and I tell you that whatever you report to me, within an hour, it will be on the president’s desk. You, in your own mind, have developed this sense of self-importance,” says West. “Then after your service, when you haven’t even told your family or friends about this, you’re told, ‘thank you very much, indeed. Don’t call us, we’ll call you in a couple years.’ When Greville got out of prison, he was not prepared, as people obviously are not in those circumstances, to be ignored.”

When it came to writing the screenplay, O’Connor laments that the true story of Wynne’s experiences may never be known. Even the official accounts put out by American and Russian authorities regarding the Penkovsky affair include disinformation and spin that he, or any historian, has to navigate through.

Git History

It does exactly what you need and has these features:

  • View the details of a commit, such as author name, email, date, committer name, email, date and comments.
  • View a previous copy of the file or compare it against the local workspace version or a previous version.
  • View the changes to the active line in the editor (Git Blame).
  • Configure the information displayed in the list
  • Use keyboard shortcuts to view history of a file or line
  • View the Git log (along with details of a commit, such as author name, email, comments and file changes).

GitLens has a nice Git history browser. Install GitLens from the extensions marketplace, and then run "Show GitLens Explorer" from the command palette.

You won't need a plugin to see commit history with Visual Studio Code 1.42 or more.

Watch the video: MiG 29 for DCS World Trailer


  1. Eliazar

    some strange relationships turn out.

  2. Dennison


  3. Nagami

    In my opinion, what nonsense ((((

  4. Tai

    The total lack of taste

  5. Albion

    This message is incomparable)))

Write a message