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Petr Tesařík

Petr Tesařík

🔄 Data last refreshed 3 days ago
🤝

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Followers
276
Account age
1 yrs
🧰 Free analysis for Petr Tesařík
🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

📊 Post engagement

6
Avg engagement / post
2.2%
Engagement vs followers
Apr 2025
On Mastodon since

🔥 Top post: I'm disappointed. It's past 5pm already, and there's still no fr · 31 likes + reposts

📊 Activity & format

Posting cadence
0.73 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
1.9×
Follows 148 back. A more reciprocal / networked account.
🔥 Top post I'm disappointed. It's past 5pm already, and there's still no fresh #kernel zero-day today. ★ 31
Ugh, I completely forgot to boast that my latest cleanup patch makes the kernel a tiny bit smaller again:3 files changed, 17 insertions(+), 32 deletions(-) But other folks keep adding lines. 😠 We need more volunteers for #MKSA! https://git… ★ 8 Hell, if it's now my boss suggesting I share the burden of MM maintainership, do I still have an excuse? Or even choice? 😱 EDIT: I know what I'll do. I can use my last line of defense: I am not fit for the job! 😎 Although… maybe I know the… ★ 2 Love #British attitude to life. Cc @ljs ★ 10 I feel sorry for our fellows at #RedHat. https://socket.dev/blog/mini-shai-hulud-campaign-hits-red-hat-cloud-services-npm-packages ★ 1 If you ask me, the current rate of Linux #kernel zero-day exploits is unsustainable, so while it's hard at the moment, it's likely to be much calmer in a few weeks. However, it's unlikely to be the case for some other (closed-source) opera… ★ 6 Note to self: kexec into a new kernel works much better if you use an actual initrd for the --initrd argument rather than the bzImage binary… ★ 3 Oh, this is cool. When I install a new font, #Firefox automatically refreshes the page that was already rendered, so I can watch missing glyphs turn into actual shapes in real time. ★ 7 Only at #SUSE! Today, Vojtech Pavlik taught me that a great benefit of AI is going to the pub. Hell, yeah! Who's joining? Cc @vbabka @lkundrak ★ 2 @nijel You may find it amusing that section titles in Solid Ground are still upside down today. ★ 1 If your firewall starts behaving strangely after installing #docker on #opensuse #slowroll, the reason is that firewalld has switched to nft, but docker still uses iptables. You may have to install iptables (the CLI tool) to fix the damage. ★ 3 How come I hadn't known this gem until I was told today? https://github.com/EnterpriseQualityCoding/FizzBuzzEnterpriseEdition/issues/509 ★ 2

🐘 Community & instance

Home server
infosec.exchange
A cybersecurity & infosec server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Apr 2025
An established account with real history on the platform.

💡 Facts

🗓️Joined Mastodon in 2025 — 1 year ago.
👁️Averages 6 views per post.
📤Posts about 0.7× per week.

🕵️ Fake follower check

Estimated
84/100
Excellent Credibility score
95%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 95% real, active audience · Low fake-follower risk.
  • Strong engagement (~2.2% of followers engage each post) — an active, real audience.
  • Verified account.

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Linux kernel hacker. Pronouns: he/him

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